60 datasets found
  1. U.S. population of metropolitan areas in 2023

    • statista.com
    • akomarchitects.com
    Updated Nov 19, 2025
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    Statista (2025). U.S. population of metropolitan areas in 2023 [Dataset]. https://www.statista.com/statistics/183600/population-of-metropolitan-areas-in-the-us/
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    Dataset updated
    Nov 19, 2025
    Dataset authored and provided by
    Statistahttp://statista.com/
    Time period covered
    2023
    Area covered
    United States
    Description

    In 2023, the metropolitan area of New York-Newark-Jersey City had the biggest population in the United States. Based on annual estimates from the census, the metropolitan area had around 19.5 million inhabitants, which was a slight decrease from the previous year. The Los Angeles and Chicago metro areas rounded out the top three. What is a metropolitan statistical area? In general, a metropolitan statistical area (MSA) is a core urbanized area with a population of at least 50,000 inhabitants – the smallest MSA is Carson City, with an estimated population of nearly 56,000. The urban area is made bigger by adjacent communities that are socially and economically linked to the center. MSAs are particularly helpful in tracking demographic change over time in large communities and allow officials to see where the largest pockets of inhabitants are in the country. How many MSAs are in the United States? There were 421 metropolitan statistical areas across the U.S. as of July 2021. The largest city in each MSA is designated the principal city and will be the first name in the title. An additional two cities can be added to the title, and these will be listed in population order based on the most recent census. So, in the example of New York-Newark-Jersey City, New York has the highest population, while Jersey City has the lowest. The U.S. Census Bureau conducts an official population count every ten years, and the new count is expected to be announced by the end of 2030.

  2. U

    Digital data sets describing metropolitan areas in the conterminous US

    • data.usgs.gov
    • catalog.data.gov
    • +1more
    Updated Apr 17, 2004
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    United States Geological Survey (2004). Digital data sets describing metropolitan areas in the conterminous US [Dataset]. http://doi.org/10.5066/P9VR5MJ6
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    Dataset updated
    Apr 17, 2004
    Dataset authored and provided by
    United States Geological Surveyhttp://www.usgs.gov/
    License

    U.S. Government Workshttps://www.usa.gov/government-works
    License information was derived automatically

    Time period covered
    1990
    Area covered
    Contiguous United States, United States
    Description

    This data set describes metropolitan areas in the conterminous United States, developed from U.S. Bureau of the Census boundaries of Consolidated Metropolitan Statistical Areas (CMSA) and Metropolitan Statistical Areas (MSA), that have been processed to extract the largest contiguous urban area within each MSA or CMSA.

  3. U.S. metro areas - ranked by Gross Metropolitan Product (GMP) 2021

    • statista.com
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    Statista, U.S. metro areas - ranked by Gross Metropolitan Product (GMP) 2021 [Dataset]. https://www.statista.com/statistics/183808/gmp-of-the-20-biggest-metro-areas/
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    Dataset authored and provided by
    Statistahttp://statista.com/
    Time period covered
    2020
    Area covered
    United States
    Description

    This statistic provides projected figures for the Gross Metropolitan Product (GMP) of the United States in 2021, by metropolitan area. Only the 100 leading metropolitan areas are shown here. In 2022, the GMP of the New York-Newark-Jersey City metro area is projected to be around of about **** trillion U.S. dollars. Los Angeles metropolitan areaA metropolitan area in the U.S. is characterized by a relatively high population density and close economic ties through the area, albeit, without the legal incorporation that is found within cities. The Gross Metropolitan Product is measured by the Bureau of Economic Analysis under the U.S. Department of Commerce and includes only metropolitan areas. The GMP of the Los Angeles-Long Beach-Anaheim metropolitan area located in California is projected to be among the highest in the United States in 2021, amounting to *** trillion U.S. dollars. The Houston-The Woodlands-Sugar Land, Texas metro area is estimated to be approximately *** billion U.S. dollars in the same year. The Los Angeles metro area had one of the largest populations in the country, totaling ****** million people in 2021. The Greater Los Angeles region has one of the largest economies in the world and is the U.S. headquarters of many international car manufacturers including Honda, Mazda, and Hyundai. Its entertainment industry has generated plenty of tourism and includes world famous beaches, shopping, motion picture studios, and amusement parks. The Hollywood district is known as the “movie capital of the U.S.” and has its historical roots in the country’s film industry. Its port, the Port of Los Angeles and the Port of Long Beach are aggregately one of the world’s busiest ports. The Port of Los Angelesgenerated some ****** million U.S. dollars in revenue in 2019.

  4. U.S. fastest growing metropolitan areas 2022-2023

    • statista.com
    Updated Apr 25, 2014
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    Statista (2014). U.S. fastest growing metropolitan areas 2022-2023 [Dataset]. https://www.statista.com/statistics/431877/the-fastest-growing-metropolitan-areas-in-the-us/
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    Dataset updated
    Apr 25, 2014
    Dataset authored and provided by
    Statistahttp://statista.com/
    Time period covered
    Jul 1, 2022 - Jul 1, 2023
    Area covered
    United States
    Description

    This statistics shows the top 20 fastest growing large-metropolitan areas in the United States between July 1st, 2022 and July 1st, 2023. The total population in the Wilmington, North Carolina, metropolitan area increased by 0.05 percent from 2022 to 2023.

  5. TIGER/Line Shapefile, 2020, Nation, U.S., Metropolitan Divisions

    • catalog.data.gov
    Updated Nov 1, 2022
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    U.S. Department of Commerce, U.S. Census Bureau, Geography Division, Spatial Data Collection and Products Branch (Publisher) (2022). TIGER/Line Shapefile, 2020, Nation, U.S., Metropolitan Divisions [Dataset]. https://catalog.data.gov/dataset/tiger-line-shapefile-2020-nation-u-s-metropolitan-divisions
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    Dataset updated
    Nov 1, 2022
    Dataset provided by
    United States Census Bureauhttp://census.gov/
    Area covered
    United States
    Description

    The TIGER/Line shapefiles and related database files (.dbf) are an extract of selected geographic and cartographic information from the U.S. Census Bureau's Master Address File / Topologically Integrated Geographic Encoding and Referencing (MAF/TIGER) Database (MTDB). The MTDB represents a seamless national file with no overlaps or gaps between parts, however, each TIGER/Line shapefile is designed to stand alone as an independent data set, or they can be combined to cover the entire nation. Metropolitan Divisions subdivide a Metropolitan Statistical Area containing a single core urban area that has a population of at least 2.5 million to form smaller groupings of counties or equivalent entities. Not all Metropolitan Statistical Areas with urban areas of this size will contain Metropolitan Divisions. Metropolitan Division are defined by the Office of Management and Budget (OMB) and consist of one or more main counties or equivalent entities that represent an employment center or centers, plus adjacent counties associated with the main county or counties through commuting ties. Because Metropolitan Divisions represent subdivisions of larger Metropolitan Statistical Areas, it is not appropriate to rank or compare Metropolitan Divisions with Metropolitan and Micropolitan Statistical Areas. The Metropolitan Divisions boundaries are those defined by OMB based on the 2010 Census, published in 2013, and updated in 2017.

  6. Top 20 metropolitan areas in the United States in 2010, by land area

    • statista.com
    Updated Feb 24, 2016
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    Statista (2016). Top 20 metropolitan areas in the United States in 2010, by land area [Dataset]. https://www.statista.com/statistics/431912/top-20-metropolitan-areas-in-the-united-states-by-land-area/
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    Dataset updated
    Feb 24, 2016
    Dataset authored and provided by
    Statistahttp://statista.com/
    Time period covered
    2010
    Area covered
    United States
    Description

    This statistics shows a list of the top 20 largest-metropolitan areas in the United States in 2010, by land area. Riverside-San Bernardino-Ontario in California was ranked first enclosing an area of 70,612 square kilometers.

  7. TIGER/Line Shapefile, Current, Nation, U.S., Metropolitan Division

    • catalog.data.gov
    Updated Aug 8, 2025
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    U.S. Department of Commerce, U.S. Census Bureau, Geography Division (Point of Contact) (2025). TIGER/Line Shapefile, Current, Nation, U.S., Metropolitan Division [Dataset]. https://catalog.data.gov/dataset/tiger-line-shapefile-current-nation-u-s-metropolitan-division
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    Dataset updated
    Aug 8, 2025
    Dataset provided by
    United States Census Bureauhttp://census.gov/
    Description

    This resource is a member of a series. The TIGER/Line shapefiles and related database files (.dbf) are an extract of selected geographic and cartographic information from the U.S. Census Bureau's Master Address File / Topologically Integrated Geographic Encoding and Referencing (MAF/TIGER) System (MTS). The MTS represents a seamless national file with no overlaps or gaps between parts, however, each TIGER/Line shapefile is designed to stand alone as an independent data set, or they can be combined to cover the entire nation. Metropolitan divisions subdivide a metropolitan statistical area containing a single core urban area that has a population of at least 2.5 million to form smaller groupings of counties or equivalent entities. Not all metropolitan statistical areas with urban areas of this size will contain metropolitan divisions. Metropolitan division are defined by the Office of Management and Budget (OMB) and consist of one or more main counties or equivalent entities that represent an employment center or centers, plus adjacent counties associated with the main county or counties through commuting ties. Because metropolitan divisions represent subdivisions of larger metropolitan statistical areas, it is not appropriate to rank or compare metropolitan divisions with metropolitan and micropolitan statistical areas. The metropolitan division boundaries are those defined by OMB based on the 2020 Census and published in 2023.

  8. Largest cities in Latin America by population 2025

    • statista.com
    Updated Apr 8, 2025
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    Statista (2025). Largest cities in Latin America by population 2025 [Dataset]. https://www.statista.com/statistics/1374285/largest-metropolitan-areas-in-latam/
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    Dataset updated
    Apr 8, 2025
    Dataset authored and provided by
    Statistahttp://statista.com/
    Time period covered
    2025
    Area covered
    Latin America, Americas
    Description

    In 2025, approximately 23 million people lived in the São Paulo metropolitan area, making it the biggest in Latin America and the Caribbean and the sixth most populated in the world. The homonymous state of São Paulo was also the most populous federal entity in the country. The second place for the region was Mexico City with 22.75 million inhabitants. Brazil's cities Brazil is home to two large metropolises, only counting the population within the city limits, São Paulo had approximately 11.45 million inhabitants, and Rio de Janeiro around 6.21 million inhabitants. It also contains a number of smaller, but well known cities such as Brasília, Salvador, Belo Horizonte and many others, which report between 2 and 3 million inhabitants each. As a result, the country's population is primarily urban, with nearly 88 percent of inhabitants living in cities. Mexico City Mexico City's metropolitan area ranks sevenths in the ranking of most populated cities in the world. Founded over the Aztec city of Tenochtitlan in 1521 after the Spanish conquest as the capital of the Viceroyalty of New Spain, the city still stands as one of the most important in Latin America. Nevertheless, the preeminent economic, political, and cultural position of Mexico City has not prevented the metropolis from suffering the problems affecting the rest of the country, namely, inequality and violence. Only in 2023, the city registered a crime incidence of 52,723 reported cases for every 100,000 inhabitants and around 24 percent of the population lived under the poverty line.

  9. Top 100 US Cities by Population

    • kaggle.com
    zip
    Updated Dec 15, 2021
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    Brandon Conrady (2021). Top 100 US Cities by Population [Dataset]. https://www.kaggle.com/datasets/brandonconrady/top-100-us-cities-by-population
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    zip(5329 bytes)Available download formats
    Dataset updated
    Dec 15, 2021
    Authors
    Brandon Conrady
    License

    https://creativecommons.org/publicdomain/zero/1.0/https://creativecommons.org/publicdomain/zero/1.0/

    Area covered
    United States
    Description

    Content

    Data was pulled from a table in the following Wikipedia article: https://en.wikipedia.org/wiki/List_of_United_States_cities_by_population I used Microsoft Excel's PowerQuery function to pull the table from Wikipedia. Lists each city, its rank (based on 2020 population), some data on its area, and population in both 2020 and 2010.

    Banner image source: https://unsplash.com/photos/wh-7GeXxItI

  10. US Freight Analysis Framework Regions

    • koordinates.com
    csv, dwg, geodatabase +6
    Updated Feb 28, 2005
    + more versions
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    US Bureau of Transportation Statistics (BTS) (2005). US Freight Analysis Framework Regions [Dataset]. https://koordinates.com/layer/22839-us-freight-analysis-framework-regions/
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    pdf, geopackage / sqlite, geodatabase, kml, mapinfo mif, dwg, mapinfo tab, shapefile, csvAvailable download formats
    Dataset updated
    Feb 28, 2005
    Dataset provided by
    Bureau of Transportation Statisticshttp://www.rita.dot.gov/bts
    Authors
    US Bureau of Transportation Statistics (BTS)
    Area covered
    Description

    FAF domestic region level datasets and products provide information for states, state portions of large metropolitan areas, and remainders of states. Metropolitan areas consist of Metropolitan Statistical Areas or Consolidated Statistical Areas as defined by the Office of Management and Budget. When a metropolitan area is entirely within a state or when a state's portion of a multi-state metropolitan area is large enough to support the sampling procedures in the Commodity Flow Survey, the area becomes a separate FAF region. Small single-state metropolitan areas and small portions of a multi-state metropolitan area are part of the State or Remainder of State. FAF has two metropolitan areas that are each divided into three FAF regions, four that are each divided into two FAF regions, and several that have small pieces combined with States or Remainders of States.

    © United States Department of Transportation, Federal Highway Administration. For more information, see the site http://www.ops.fhwa.dot.gov/freight/freight_analysis/faf/faf3/userguide/index.htm This layer is sourced from maps.bts.dot.gov.

  11. Global Cities by GDP

    • kaggle.com
    zip
    Updated May 30, 2024
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    Khushi (2024). Global Cities by GDP [Dataset]. https://www.kaggle.com/datasets/khushikhushikhushi/global-cities-by-gdp
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    zip(19896 bytes)Available download formats
    Dataset updated
    May 30, 2024
    Authors
    Khushi
    License

    MIT Licensehttps://opensource.org/licenses/MIT
    License information was derived automatically

    Description

    This CSV file contains data on major metropolitan areas/cities around the world as of 2022, detailing their estimated Gross Domestic Product (GDP) and population statistics:

    Position: An index number starting from 1.

    Metropolitan Area/City: The name of the metropolitan area or city.

    Country/Region: The country or region where the city is located.

    Official est. GDP (billion US$): The estimated GDP of the city in billions of US dollars.

    Metropolitan Population: The population of the metropolitan area.

  12. Population age structure in metropolitan areas in the U.S.

    • statista.com
    Updated Jul 31, 2010
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    Statista (2010). Population age structure in metropolitan areas in the U.S. [Dataset]. https://www.statista.com/statistics/183609/population-age-structure-in-metropolitan-areas-in-the-us/
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    Dataset updated
    Jul 31, 2010
    Dataset authored and provided by
    Statistahttp://statista.com/
    Time period covered
    2009
    Area covered
    United States
    Description

    This graph shows the age structure of the population in the 10 largest metropolitan areas in the U.S. in 2009. 4.42 million people under 18 years of age were living in New York in 2009.

  13. a

    Where is the US GDP Coming From?

    • hub.arcgis.com
    Updated Aug 24, 2017
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    ArcGIS Living Atlas Team (2017). Where is the US GDP Coming From? [Dataset]. https://hub.arcgis.com/maps/b2675a2de25048968059245d547e980d
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    Dataset updated
    Aug 24, 2017
    Dataset authored and provided by
    ArcGIS Living Atlas Team
    Area covered
    Description

    This web map shows annual Gross Domestic Product (GDP) by state and metro area in the USA for 2015. Clicking on the map reveals information about how the GDP has changed over time since 2001.The overlay of metro areas over states helps to put emphasis on where the country's GDP is coming from. The darkest green states produce the largest amount of GDP, and the largest circles show which major metropolitan areas contribute the most GDP within each state. Data is from the US Bureau of Economic Analysis and was downloaded from here. The state boundaries are generalized 2010 state boundaries from the Census Bureau's 2010 MAF/TIGER database. Note-- NAICS Industry detail is based on the 2007 North American Industry Classification System (NAICS).

  14. United States Cities

    • kaggle.com
    zip
    Updated Jan 6, 2023
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    outwrest (2023). United States Cities [Dataset]. https://www.kaggle.com/datasets/outwrest/simple-cities-us-dataset
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    zip(4140879 bytes)Available download formats
    Dataset updated
    Jan 6, 2023
    Authors
    outwrest
    License

    Attribution 4.0 (CC BY 4.0)https://creativecommons.org/licenses/by/4.0/
    License information was derived automatically

    Area covered
    United States
    Description

    The United States is a country located in North America. It is made up of 50 states and the capital district of Washington. The US federal republic has its capital in Washington D.C., which means this dataset can be used to study demographics, geography, and population density for different cities across the United States. This information can help researchers, policymakers and businesses understand how people live and work within different geographical areas in the USA

    This dataset comes from simplemaps.com, check out the dataset at https://simplemaps.com/data/us-cities

    Thumbnail from https://www.vecteezy.com/vector-art/3798082-red-square-map-of-united-states-of-america-with-long-shadow

  15. Top 10 U.S. metropolitan areas with the largest middle-income population...

    • statista.com
    Updated May 11, 2016
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    Statista (2016). Top 10 U.S. metropolitan areas with the largest middle-income population 2014 [Dataset]. https://www.statista.com/statistics/547429/us-metropolitan-areas-with-the-largest-middle-income-population/
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    Dataset updated
    May 11, 2016
    Dataset authored and provided by
    Statistahttp://statista.com/
    Time period covered
    2014
    Area covered
    United States
    Description

    This statistic shows ranking of metropolitan areas with the highest shares of middle-income adults in the United States in 2014. In 2014, the Wausau metropolitan area in Wisconsin was ranked first with ** percent of adult population living in the middle-income tier.

  16. TIGER/Line Shapefile, 2020, Nation, U.S., 2020 Census Urban Area

    • catalog.data.gov
    Updated Aug 11, 2025
    + more versions
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    U.S. Department of Commerce, U.S. Census Bureau, Geography Division, Geospatial Products Branch (Point of Contact) (2025). TIGER/Line Shapefile, 2020, Nation, U.S., 2020 Census Urban Area [Dataset]. https://catalog.data.gov/dataset/tiger-line-shapefile-2020-nation-u-s-2020-census-urban-area
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    Dataset updated
    Aug 11, 2025
    Dataset provided by
    United States Census Bureauhttp://census.gov/
    Area covered
    United States
    Description

    The TIGER/Line shapefiles and related database files (.dbf) are an extract of selected geographic and cartographic information from the U.S. Census Bureau's Master Address File / Topologically Integrated Geographic Encoding and Referencing (MAF/TIGER) Database (MTDB). The MTDB represents a seamless national file with no overlaps or gaps between parts, however, each TIGER/Line shapefile is designed to stand alone as an independent data set, or they can be combined to cover the entire nation. After each decennial census, the Census Bureau delineates urban areas that represent densely developed territory, encompassing residential, commercial, and other nonresidential urban land uses. In general, this territory consists of areas of high population density and urban land use resulting in a representation of the urban footprint. There are 2,645 Urban Areas (UAs) in this data release with either a minimum population of 5,000 or a housing unit count of 2,000 units. Each urban area is identified by a 5-character numeric census code that may contain leading zeroes.

  17. Top 10 U.S. metropolitan areas with the largest lower-income population 2014...

    • statista.com
    Updated May 11, 2016
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    Statista (2016). Top 10 U.S. metropolitan areas with the largest lower-income population 2014 [Dataset]. https://www.statista.com/statistics/547408/us-metropolitan-areas-with-the-largest-lower-income-population/
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    Dataset updated
    May 11, 2016
    Dataset authored and provided by
    Statistahttp://statista.com/
    Time period covered
    2014
    Area covered
    United States
    Description

    This statistic shows a ranking of metropolitan areas with the highest shares of lower-income adults in the United States in 2014. In 2014, the Laredo metropolitan area in Texas was ranked first with ** percent of adult population living in the lower-income tier.

  18. U.S. metropolitan areas by employment in research and medical laboratories...

    • statista.com
    Updated Jul 11, 2025
    + more versions
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    Statista (2025). U.S. metropolitan areas by employment in research and medical laboratories 2023 [Dataset]. https://www.statista.com/statistics/189799/us-metropolitan-areas-by-employment-in-research-and-medical-laboratories/
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    Dataset updated
    Jul 11, 2025
    Dataset authored and provided by
    Statistahttp://statista.com/
    Time period covered
    2023
    Area covered
    United States
    Description

    This statistic shows the top 10 U.S. metropolitan statistical areas with the largest amount of employment in drugs and pharmaceuticals in 2023. New York-Newark-Jersey City (NY-NJ-PA) ranked second highest, with around ****** persons employed within this industry.

  19. A

    Education Highlight Tables: Major field of study primary groupings for...

    • data.amerigeoss.org
    • open.canada.ca
    • +1more
    csv, html
    Updated Jul 22, 2019
    + more versions
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    Canada (2019). Education Highlight Tables: Major field of study primary groupings for selected age groups, sex and selected highest levels of Educational attainment, for Canada, provinces and territories, census metropolitan areas and census agglomerations, 2016 Census [Dataset]. https://data.amerigeoss.org/sr/dataset/d0155ec3-c093-476e-bc3e-02febcff1e27
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    csv, htmlAvailable download formats
    Dataset updated
    Jul 22, 2019
    Dataset provided by
    Canada
    Area covered
    Canada
    Description

    Provides information highlights by topic via key indicators for various levels of geography.

  20. n

    A dataset of 5 million city trees from 63 US cities: species, location,...

    • data.niaid.nih.gov
    • data-staging.niaid.nih.gov
    • +2more
    zip
    Updated Aug 31, 2022
    + more versions
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    Dakota McCoy; Benjamin Goulet-Scott; Weilin Meng; Bulent Atahan; Hana Kiros; Misako Nishino; John Kartesz (2022). A dataset of 5 million city trees from 63 US cities: species, location, nativity status, health, and more. [Dataset]. http://doi.org/10.5061/dryad.2jm63xsrf
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    zipAvailable download formats
    Dataset updated
    Aug 31, 2022
    Dataset provided by
    Harvard University
    Cornell University
    Worcester Polytechnic Institute
    The Biota of North America Program (BONAP)
    Stanford University
    Authors
    Dakota McCoy; Benjamin Goulet-Scott; Weilin Meng; Bulent Atahan; Hana Kiros; Misako Nishino; John Kartesz
    License

    https://spdx.org/licenses/CC0-1.0.htmlhttps://spdx.org/licenses/CC0-1.0.html

    Area covered
    United States
    Description

    Sustainable cities depend on urban forests. City trees -- a pillar of urban forests -- improve our health, clean the air, store CO2, and cool local temperatures. Comparatively less is known about urban forests as ecosystems, particularly their spatial composition, nativity statuses, biodiversity, and tree health. Here, we assembled and standardized a new dataset of N=5,660,237 trees from 63 of the largest US cities. The data comes from tree inventories conducted at the level of cities and/or neighborhoods. Each data sheet includes detailed information on tree location, species, nativity status (whether a tree species is naturally occurring or introduced), health, size, whether it is in a park or urban area, and more (comprising 28 standardized columns per datasheet). This dataset could be analyzed in combination with citizen-science datasets on bird, insect, or plant biodiversity; social and demographic data; or data on the physical environment. Urban forests offer a rare opportunity to intentionally design biodiverse, heterogenous, rich ecosystems. Methods See eLife manuscript for full details. Below, we provide a summary of how the dataset was collected and processed.

    Data Acquisition We limited our search to the 150 largest cities in the USA (by census population). To acquire raw data on street tree communities, we used a search protocol on both Google and Google Datasets Search (https://datasetsearch.research.google.com/). We first searched the city name plus each of the following: street trees, city trees, tree inventory, urban forest, and urban canopy (all combinations totaled 20 searches per city, 10 each in Google and Google Datasets Search). We then read the first page of google results and the top 20 results from Google Datasets Search. If the same named city in the wrong state appeared in the results, we redid the 20 searches adding the state name. If no data were found, we contacted a relevant state official via email or phone with an inquiry about their street tree inventory. Datasheets were received and transformed to .csv format (if they were not already in that format). We received data on street trees from 64 cities. One city, El Paso, had data only in summary format and was therefore excluded from analyses.

    Data Cleaning All code used is in the zipped folder Data S5 in the eLife publication. Before cleaning the data, we ensured that all reported trees for each city were located within the greater metropolitan area of the city (for certain inventories, many suburbs were reported - some within the greater metropolitan area, others not). First, we renamed all columns in the received .csv sheets, referring to the metadata and according to our standardized definitions (Table S4). To harmonize tree health and condition data across different cities, we inspected metadata from the tree inventories and converted all numeric scores to a descriptive scale including “excellent,” “good”, “fair”, “poor”, “dead”, and “dead/dying”. Some cities included only three points on this scale (e.g., “good”, “poor”, “dead/dying”) while others included five (e.g., “excellent,” “good”, “fair”, “poor”, “dead”). Second, we used pandas in Python (W. McKinney & Others, 2011) to correct typos, non-ASCII characters, variable spellings, date format, units used (we converted all units to metric), address issues, and common name format. In some cases, units were not specified for tree diameter at breast height (DBH) and tree height; we determined the units based on typical sizes for trees of a particular species. Wherever diameter was reported, we assumed it was DBH. We standardized health and condition data across cities, preserving the highest granularity available for each city. For our analysis, we converted this variable to a binary (see section Condition and Health). We created a column called “location_type” to label whether a given tree was growing in the built environment or in green space. All of the changes we made, and decision points, are preserved in Data S9. Third, we checked the scientific names reported using gnr_resolve in the R library taxize (Chamberlain & Szöcs, 2013), with the option Best_match_only set to TRUE (Data S9). Through an iterative process, we manually checked the results and corrected typos in the scientific names until all names were either a perfect match (n=1771 species) or partial match with threshold greater than 0.75 (n=453 species). BGS manually reviewed all partial matches to ensure that they were the correct species name, and then we programmatically corrected these partial matches (for example, Magnolia grandifolia-- which is not a species name of a known tree-- was corrected to Magnolia grandiflora, and Pheonix canariensus was corrected to its proper spelling of Phoenix canariensis). Because many of these tree inventories were crowd-sourced or generated in part through citizen science, such typos and misspellings are to be expected. Some tree inventories reported species by common names only. Therefore, our fourth step in data cleaning was to convert common names to scientific names. We generated a lookup table by summarizing all pairings of common and scientific names in the inventories for which both were reported. We manually reviewed the common to scientific name pairings, confirming that all were correct. Then we programmatically assigned scientific names to all common names (Data S9). Fifth, we assigned native status to each tree through reference to the Biota of North America Project (Kartesz, 2018), which has collected data on all native and non-native species occurrences throughout the US states. Specifically, we determined whether each tree species in a given city was native to that state, not native to that state, or that we did not have enough information to determine nativity (for cases where only the genus was known). Sixth, some cities reported only the street address but not latitude and longitude. For these cities, we used the OpenCageGeocoder (https://opencagedata.com/) to convert addresses to latitude and longitude coordinates (Data S9). OpenCageGeocoder leverages open data and is used by many academic institutions (see https://opencagedata.com/solutions/academia). Seventh, we trimmed each city dataset to include only the standardized columns we identified in Table S4. After each stage of data cleaning, we performed manual spot checking to identify any issues.

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Statista (2025). U.S. population of metropolitan areas in 2023 [Dataset]. https://www.statista.com/statistics/183600/population-of-metropolitan-areas-in-the-us/
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U.S. population of metropolitan areas in 2023

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15 scholarly articles cite this dataset (View in Google Scholar)
Dataset updated
Nov 19, 2025
Dataset authored and provided by
Statistahttp://statista.com/
Time period covered
2023
Area covered
United States
Description

In 2023, the metropolitan area of New York-Newark-Jersey City had the biggest population in the United States. Based on annual estimates from the census, the metropolitan area had around 19.5 million inhabitants, which was a slight decrease from the previous year. The Los Angeles and Chicago metro areas rounded out the top three. What is a metropolitan statistical area? In general, a metropolitan statistical area (MSA) is a core urbanized area with a population of at least 50,000 inhabitants – the smallest MSA is Carson City, with an estimated population of nearly 56,000. The urban area is made bigger by adjacent communities that are socially and economically linked to the center. MSAs are particularly helpful in tracking demographic change over time in large communities and allow officials to see where the largest pockets of inhabitants are in the country. How many MSAs are in the United States? There were 421 metropolitan statistical areas across the U.S. as of July 2021. The largest city in each MSA is designated the principal city and will be the first name in the title. An additional two cities can be added to the title, and these will be listed in population order based on the most recent census. So, in the example of New York-Newark-Jersey City, New York has the highest population, while Jersey City has the lowest. The U.S. Census Bureau conducts an official population count every ten years, and the new count is expected to be announced by the end of 2030.

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