Land area (sq. km) in United States was reported at 9147420 sq. Km in 2023, according to the World Bank collection of development indicators, compiled from officially recognized sources. United States - Land area (sq. km) - actual values, historical data, forecasts and projections were sourced from the World Bank on October of 2025.

United States US: Land Area data was reported at 9,147,420.000 sq km in 2017. This stayed constant from the previous number of 9,147,420.000 sq km for 2016. United States US: Land Area data is updated yearly, averaging 9,158,960.000 sq km from Dec 1961 (Median) to 2017, with 57 observations. The data reached an all-time high of 9,161,920.000 sq km in 2007 and a record low of 9,147,420.000 sq km in 2017. United States US: Land Area data remains active status in CEIC and is reported by World Bank. The data is categorized under Global Database’s United States – Table US.World Bank.WDI: Land Use, Protected Areas and National Wealth. Land area is a country's total area, excluding area under inland water bodies, national claims to continental shelf, and exclusive economic zones. In most cases the definition of inland water bodies includes major rivers and lakes.; ; Food and Agriculture Organization, electronic files and web site.; Sum;

The USA: Land area in sq. km: The latest value from 2023 is 9147420 sq. km, unchanged from 9147420 sq. km in 2022. In comparison, the world average is 656095 sq. km, based on data from 196 countries. Historically, the average for the USA from 1961 to 2023 is 9156405 sq. km. The minimum value, 9147420 sq. km, was reached in 2008 while the maximum of 9161920 sq. km was recorded in 2000.

Surface area (sq. km) in United States was reported at 9831510 sq. Km in 2023, according to the World Bank collection of development indicators, compiled from officially recognized sources. United States - Surface area (sq. km) - actual values, historical data, forecasts and projections were sourced from the World Bank on October of 2025.

United States US: Urban Land Area data was reported at 802,053.592 sq km in 2010. This stayed constant from the previous number of 802,053.592 sq km for 2000. United States US: Urban Land Area data is updated yearly, averaging 802,053.592 sq km from Dec 1990 (Median) to 2010, with 3 observations. The data reached an all-time high of 802,053.592 sq km in 2010 and a record low of 802,053.592 sq km in 2010. United States US: Urban Land Area data remains active status in CEIC and is reported by World Bank. The data is categorized under Global Database’s USA – Table US.World Bank: Land Use, Protected Areas and National Wealth. Urban land area in square kilometers, based on a combination of population counts (persons), settlement points, and the presence of Nighttime Lights. Areas are defined as urban where contiguous lighted cells from the Nighttime Lights or approximated urban extents based on buffered settlement points for which the total population is greater than 5,000 persons.; ; Center for International Earth Science Information Network (CIESIN)/Columbia University. 2013. Urban-Rural Population and Land Area Estimates Version 2. Palisades, NY: NASA Socioeconomic Data and Applications Center (SEDAC). http://sedac.ciesin.columbia.edu/data/set/lecz-urban-rural-population-land-area-estimates-v2.; Sum;

Population density (people per sq. km of land area) in United States was reported at 36.82 sq. Km in 2023, according to the World Bank collection of development indicators, compiled from officially recognized sources. United States - Population density (people per sq. km) - actual values, historical data, forecasts and projections were sourced from the World Bank on October of 2025.

The USA: Forest area, sq. km: The latest value from 2023 is 3097950 sq. km, unchanged from 3097950 sq. km in 2022. In comparison, the world average is 207390.9 sq. km, based on data from 194 countries. Historically, the average for the USA from 1990 to 2023 is 3065641.2 sq. km. The minimum value, 3024500 sq. km, was reached in 1990 while the maximum of 3100950 sq. km was recorded in 2015.

Time series data for the statistic Urban land area (sq. km) and country United States. Indicator Definition:Urban land area in square kilometers, based on a combination of population counts (persons), settlement points, and the presence of Nighttime Lights. Areas are defined as urban where contiguous lighted cells from the Nighttime Lights or approximated urban extents based on buffered settlement points for which the total population is greater than 5,000 persons.

United States US: Surface Area data was reported at 9,831,510.000 sq km in 2017. This stayed constant from the previous number of 9,831,510.000 sq km for 2016. United States US: Surface Area data is updated yearly, averaging 9,629,090.000 sq km from Dec 1961 (Median) to 2017, with 57 observations. The data reached an all-time high of 9,831,510.000 sq km in 2017 and a record low of 9,629,090.000 sq km in 1999. United States US: Surface Area data remains active status in CEIC and is reported by World Bank. The data is categorized under Global Database’s United States – Table US.World Bank.WDI: Land Use, Protected Areas and National Wealth. Surface area is a country's total area, including areas under inland bodies of water and some coastal waterways.; ; Food and Agriculture Organization, electronic files and web site.; Sum;

United States US: Rural Land Area data was reported at 8,549,545.510 sq km in 2010. This stayed constant from the previous number of 8,549,545.510 sq km for 2000. United States US: Rural Land Area data is updated yearly, averaging 8,549,545.510 sq km from Dec 1990 (Median) to 2010, with 3 observations. The data reached an all-time high of 8,549,545.510 sq km in 2010 and a record low of 8,549,545.510 sq km in 2010. United States US: Rural Land Area data remains active status in CEIC and is reported by World Bank. The data is categorized under Global Database’s USA – Table US.World Bank: Land Use, Protected Areas and National Wealth. Rural land area in square kilometers, derived from urban extent grids which distinguish urban and rural areas based on a combination of population counts (persons), settlement points, and the presence of Nighttime Lights. Areas are defined as urban where contiguous lighted cells from the Nighttime Lights or approximated urban extents based on buffered settlement points for which the total population is greater than 5,000 persons.; ; Center for International Earth Science Information Network (CIESIN)/Columbia University. 2013. Urban-Rural Population and Land Area Estimates Version 2. Palisades, NY: NASA Socioeconomic Data and Applications Center (SEDAC). http://sedac.ciesin.columbia.edu/data/set/lecz-urban-rural-population-land-area-estimates-v2.; Sum;

Two datasets provide geographic, land use and population data for US Counties within the contiguous US. Land area, water area, cropland area, farmland area, pastureland area and idle cropland area are given along with latitude and longitude of the county centroid and the county population. Variables in this dataset come from the US Dept. of Agriculture (USDA) Natural Resources Conservation Service (NRCS) and the US Census Bureau.

EOS-WEBSTER provides seven datasets which provide county-level data on agricultural management, crop production, livestock, soil properties, geography and population. These datasets were assembled during the mid-1990's to provide driving variables for an assessment of greenhouse gas production from US agriculture using the DNDC agro-ecosystem model [see, for example, Li et al. (1992), J. Geophys. Res., 97:9759-9776; Li et al. (1996) Global Biogeochem. Cycles, 10:297-306]. The data (except nitrogen fertilizer use) were all derived from publicly available, national databases. Each dataset has a separate DIF.

The US County data has been divided into seven datasets.

US County Data Datasets:

1) Agricultural Management 2) Crop Data (NASS Crop data) 3) Crop Summary (NASS Crop data) 4) Geography and Population 5) Land Use 6) Livestock Populations 7) Soil Properties

Forest area (sq. km) in United States was reported at 3097950 sq. Km in 2023, according to the World Bank collection of development indicators, compiled from officially recognized sources. United States - Forest area (sq. km) - actual values, historical data, forecasts and projections were sourced from the World Bank on October of 2025.

Time series data for the statistic Urban land area (sq. km) and country Virgin Islands (U.S.). Indicator Definition:Urban land area in square kilometers, based on a combination of population counts (persons), settlement points, and the presence of Nighttime Lights. Areas are defined as urban where contiguous lighted cells from the Nighttime Lights or approximated urban extents based on buffered settlement points for which the total population is greater than 5,000 persons.

United States US: Population Density: People per Square Km data was reported at 35.608 Person/sq km in 2017. This records an increase from the previous number of 35.355 Person/sq km for 2016. United States US: Population Density: People per Square Km data is updated yearly, averaging 26.948 Person/sq km from Dec 1961 (Median) to 2017, with 57 observations. The data reached an all-time high of 35.608 Person/sq km in 2017 and a record low of 20.056 Person/sq km in 1961. United States US: Population Density: People per Square Km data remains active status in CEIC and is reported by World Bank. The data is categorized under Global Database’s United States – Table US.World Bank.WDI: Population and Urbanization Statistics. Population density is midyear population divided by land area in square kilometers. Population is based on the de facto definition of population, which counts all residents regardless of legal status or citizenship--except for refugees not permanently settled in the country of asylum, who are generally considered part of the population of their country of origin. Land area is a country's total area, excluding area under inland water bodies, national claims to continental shelf, and exclusive economic zones. In most cases the definition of inland water bodies includes major rivers and lakes.; ; Food and Agriculture Organization and World Bank population estimates.; Weighted average;

Agricultural land (sq. km) in United States was reported at 4215404 sq. Km in 2023, according to the World Bank collection of development indicators, compiled from officially recognized sources. United States - Agricultural land (sq. km) - actual values, historical data, forecasts and projections were sourced from the World Bank on October of 2025.

United States US: Rural Land Area Where Elevation is Below 5 Meters data was reported at 91,676.458 sq km in 2010. This stayed constant from the previous number of 91,676.458 sq km for 2000. United States US: Rural Land Area Where Elevation is Below 5 Meters data is updated yearly, averaging 91,676.458 sq km from Dec 1990 (Median) to 2010, with 3 observations. The data reached an all-time high of 91,676.458 sq km in 2010 and a record low of 91,676.458 sq km in 2010. United States US: Rural Land Area Where Elevation is Below 5 Meters data remains active status in CEIC and is reported by World Bank. The data is categorized under Global Database’s United States – Table US.World Bank.WDI: Land Use, Protected Areas and National Wealth. Rural land area below 5m is the total rural land area in square kilometers where the elevation is 5 meters or less.; ; Center for International Earth Science Information Network (CIESIN)/Columbia University. 2013. Urban-Rural Population and Land Area Estimates Version 2. Palisades, NY: NASA Socioeconomic Data and Applications Center (SEDAC). http://sedac.ciesin.columbia.edu/data/set/lecz-urban-rural-population-land-area-estimates-v2.; Sum;

The average for 2023 based on 24 countries was 854251 sq. km. The highest value was in the USA: 9147420 sq. km and the lowest value was in Bermuda: 54 sq. km. The indicator is available from 1961 to 2023. Below is a chart for all countries where data are available.

Africa: Population density (people per sq. km of land area)

  Dataset summary

This dataset provides values for "Population density (people per sq. km of land area)" across African countries, standardized and made ML-ready. Geographic scope: 54 African countries. Temporal coverage: 1960–2024 (annual). Units: As defined by the World Bank indicator.

  Source & licensing

Source: World Bank – World Development Indicators (WDI), Indicator code: EN.POP.DNST. License:… See the full description on the dataset page: https://huggingface.co/datasets/electricsheepafrica/Population-density-people-per-sq-km-of-land-area-africa.

Time series data for the statistic Agricultural land (sq. km) and country United States. Indicator Definition:Agricultural land refers to the share of land area that is arable, under permanent crops, and under permanent pastures. Arable land includes land defined by the FAO as land under temporary crops (double-cropped areas are counted once), temporary meadows for mowing or for pasture, land under market or kitchen gardens, and land temporarily fallow. Land abandoned as a result of shifting cultivation is excluded. Land under permanent crops is land cultivated with crops that occupy the land for long periods and need not be replanted after each harvest, such as cocoa, coffee, and rubber. This category includes land under flowering shrubs, fruit trees, nut trees, and vines, but excludes land under trees grown for wood or timber. Permanent pasture is land used for five or more years for forage, including natural and cultivated crops.The indicator "Agricultural land (sq. km)" stands at 4.06 Million as of 12/31/2021. Regarding the One-Year-Change of the series, the current value is equal to the value the year prior.The 1 year change in percent is 0.0.The 3 year change in percent is 0.0.The 5 year change in percent is 0.1347.The 10 year change in percent is 0.1911.The Serie's long term average value is 4.22 Million. It's latest available value, on 12/31/2021, is 3.85 percent lower, compared to it's long term average value.The Serie's change in percent from it's minimum value, on 12/31/2012, to it's latest available value, on 12/31/2021, is +0.677%.The Serie's change in percent from it's maximum value, on 12/31/1961, to it's latest available value, on 12/31/2021, is -9.32%.

We developed a model for analyzing multi-year demographic data for long-lived animals and used data from a population of Agassiz’s desert tortoise (Gopherus agassizii) at the Desert Tortoise Research Natural Area in the western Mojave Desert of California, USA, as a case study. The study area was 7.77 square kilometers and included two locations: inside and outside the fenced boundary. The wildlife-permeable, protective fence was designed to prevent entry from vehicle users and sheep grazing. We collected mark-recapture data from 1,123 tortoises during 7 annual surveys consisting of two censuses each over a 34-year period. We used a Bayesian modeling framework to develop a multistate Jolly-Seber model because of its ability to handle unobserved (latent) states and modified this model to incorporate the additional data from non-survey years. For this model we incorporated 3 size-age states (juvenile, immature, adult), sex (female, male), two location states (inside and outside the fenced boundary) and 3 survival states (not-yet-entered, entered/alive, and dead/removed). We calculated population densities and estimated probabilities of growth of the tortoises from one size-age state to a larger size-age state, survival after 1 year and 5 years, and detection. Our results show a declining population with low estimates for survival after 1 year and 5 years. The probability for tortoises to move from outside to inside the boundary fence was greater than for tortoises to move from inside the fence to outside. The probability for detecting tortoises differed by size-age state and was lowest for the smallest tortoises and highest for the adult tortoises. The framework for the model can be used to analyze other animal populations where vital rates are expected to vary depending on multiple individual states. The model was incorporated into the manuscript that included several other databases for publication in Wildlife Monographs in 2020 by Berry et al.