About this dataset

Context

The dataset tabulates the Boulder County population over the last 20 plus years. It lists the population for each year, along with the year on year change in population, as well as the change in percentage terms for each year. The dataset can be utilized to understand the population change of Boulder County across the last two decades. For example, using this dataset, we can identify if the population is declining or increasing. If there is a change, when the population peaked, or if it is still growing and has not reached its peak. We can also compare the trend with the overall trend of United States population over the same period of time.

Key observations

In 2023, the population of Boulder County was 326,831, a 0.16% decrease year-by-year from 2022. Previously, in 2022, Boulder County population was 327,339, an increase of 0.08% compared to a population of 327,084 in 2021. Over the last 20 plus years, between 2000 and 2023, population of Boulder County increased by 55,136. In this period, the peak population was 330,938 in the year 2020. The numbers suggest that the population has already reached its peak and is showing a trend of decline. Source: U.S. Census Bureau Population Estimates Program (PEP).

Content

When available, the data consists of estimates from the U.S. Census Bureau Population Estimates Program (PEP).

Data Coverage:

• From 2000 to 2023

Variables / Data Columns

• Year: This column displays the data year (Measured annually and for years 2000 to 2023)
• Population: The population for the specific year for the Boulder County is shown in this column.
• Year on Year Change: This column displays the change in Boulder County population for each year compared to the previous year.
• Change in Percent: This column displays the year on year change as a percentage. Please note that the sum of all percentages may not equal one due to rounding of values.

Good to know

Margin of Error

Data in the dataset are based on the estimates and are subject to sampling variability and thus a margin of error. Neilsberg Research recommends using caution when presening these estimates in your research.

Custom data

If you do need custom data for any of your research project, report or presentation, you can contact our research staff at research@neilsberg.com for a feasibility of a custom tabulation on a fee-for-service basis.

Inspiration

Neilsberg Research Team curates, analyze and publishes demographics and economic data from a variety of public and proprietary sources, each of which often includes multiple surveys and programs. The large majority of Neilsberg Research aggregated datasets and insights is made available for free download at https://www.neilsberg.com/research/.

Recommended for further research

This dataset is a part of the main dataset for Boulder County Population by Year. You can refer the same here

Graph and download economic data for Resident Population in Boulder County, CO (COBOUL3POP) from 1970 to 2024 about Boulder County, CO; Boulder; CO; residents; population; and USA.

Graph and download economic data for Resident Population in Boulder, CO (MSA) (BOLPOP) from 2000 to 2024 about Boulder, CO, residents, population, and USA.

About this dataset

Context

The dataset tabulates the Boulder population distribution across 18 age groups. It lists the population in each age group along with the percentage population relative of the total population for Boulder. The dataset can be utilized to understand the population distribution of Boulder by age. For example, using this dataset, we can identify the largest age group in Boulder.

Key observations

The largest age group in Boulder, UT was for the group of age 35 to 39 years years with a population of 65 (16.71%), according to the ACS 2019-2023 5-Year Estimates. At the same time, the smallest age group in Boulder, UT was the 15 to 19 years years with a population of 0 (0%). Source: U.S. Census Bureau American Community Survey (ACS) 2019-2023 5-Year Estimates

Content

When available, the data consists of estimates from the U.S. Census Bureau American Community Survey (ACS) 2019-2023 5-Year Estimates

Age groups:

• Under 5 years
• 5 to 9 years
• 10 to 14 years
• 15 to 19 years
• 20 to 24 years
• 25 to 29 years
• 30 to 34 years
• 35 to 39 years
• 40 to 44 years
• 45 to 49 years
• 50 to 54 years
• 55 to 59 years
• 60 to 64 years
• 65 to 69 years
• 70 to 74 years
• 75 to 79 years
• 80 to 84 years
• 85 years and over

Variables / Data Columns

• Age Group: This column displays the age group in consideration
• Population: The population for the specific age group in the Boulder is shown in this column.
• % of Total Population: This column displays the population of each age group as a proportion of Boulder total population. Please note that the sum of all percentages may not equal one due to rounding of values.

Good to know

Margin of Error

Data in the dataset are based on the estimates and are subject to sampling variability and thus a margin of error. Neilsberg Research recommends using caution when presening these estimates in your research.

Custom data

If you do need custom data for any of your research project, report or presentation, you can contact our research staff at research@neilsberg.com for a feasibility of a custom tabulation on a fee-for-service basis.

Inspiration

Neilsberg Research Team curates, analyze and publishes demographics and economic data from a variety of public and proprietary sources, each of which often includes multiple surveys and programs. The large majority of Neilsberg Research aggregated datasets and insights is made available for free download at https://www.neilsberg.com/research/.

Recommended for further research

This dataset is a part of the main dataset for Boulder Population by Age. You can refer the same here

Graph and download economic data for Population Estimate, Total, Not Hispanic or Latino (5-year estimate) in Boulder County, CO (B03002002E008013) from 2009 to 2023 about Boulder County, CO; Boulder; CO; non-hispanic; estimate; persons; 5-year; population; and USA.

Graph and download economic data for Population Estimate, Total, Not Hispanic or Latino, Two or More Races, Two Races Excluding Some Other Race, and Three or More Races (5-year estimate) in Boulder County, CO (B03002011E008013) from 2009 to 2023 about Boulder County, CO; Boulder; CO; non-hispanic; estimate; persons; 5-year; population; and USA.

About this dataset

Context

The dataset tabulates the data for the Boulder, CO population pyramid, which represents the Boulder population distribution across age and gender, using estimates from the U.S. Census Bureau American Community Survey (ACS) 2019-2023 5-Year Estimates. It lists the male and female population for each age group, along with the total population for those age groups. Higher numbers at the bottom of the table suggest population growth, whereas higher numbers at the top indicate declining birth rates. Furthermore, the dataset can be utilized to understand the youth dependency ratio, old-age dependency ratio, total dependency ratio, and potential support ratio.

Key observations

• Youth dependency ratio, which is the number of children aged 0-14 per 100 persons aged 15-64, for Boulder, CO, is 11.5.
• Old-age dependency ratio, which is the number of persons aged 65 or over per 100 persons aged 15-64, for Boulder, CO, is 15.8.
• Total dependency ratio for Boulder, CO is 27.3.
• Potential support ratio, which is the number of youth (working age population) per elderly, for Boulder, CO is 6.3.

Content

When available, the data consists of estimates from the U.S. Census Bureau American Community Survey (ACS) 2019-2023 5-Year Estimates.

Age groups:

• Under 5 years
• 5 to 9 years
• 10 to 14 years
• 15 to 19 years
• 20 to 24 years
• 25 to 29 years
• 30 to 34 years
• 35 to 39 years
• 40 to 44 years
• 45 to 49 years
• 50 to 54 years
• 55 to 59 years
• 60 to 64 years
• 65 to 69 years
• 70 to 74 years
• 75 to 79 years
• 80 to 84 years
• 85 years and over

Variables / Data Columns

• Age Group: This column displays the age group for the Boulder population analysis. Total expected values are 18 and are define above in the age groups section.
• Population (Male): The male population in the Boulder for the selected age group is shown in the following column.
• Population (Female): The female population in the Boulder for the selected age group is shown in the following column.
• Total Population: The total population of the Boulder for the selected age group is shown in the following column.

Good to know

Margin of Error

Data in the dataset are based on the estimates and are subject to sampling variability and thus a margin of error. Neilsberg Research recommends using caution when presening these estimates in your research.

Custom data

If you do need custom data for any of your research project, report or presentation, you can contact our research staff at research@neilsberg.com for a feasibility of a custom tabulation on a fee-for-service basis.

Inspiration

Neilsberg Research Team curates, analyze and publishes demographics and economic data from a variety of public and proprietary sources, each of which often includes multiple surveys and programs. The large majority of Neilsberg Research aggregated datasets and insights is made available for free download at https://www.neilsberg.com/research/.

Recommended for further research

This dataset is a part of the main dataset for Boulder Population by Age. You can refer the same here

Resident Population in Boulder, CO (MSA) was 330.26200 Thous. of Persons in January of 2024, according to the United States Federal Reserve. Historically, Resident Population in Boulder, CO (MSA) reached a record high of 330.95300 in January of 2020 and a record low of 271.66900 in January of 2000. Trading Economics provides the current actual value, an historical data chart and related indicators for Resident Population in Boulder, CO (MSA) - last updated from the United States Federal Reserve on July of 2025.

Population Poverty Rate Statistics for 2023. This is part of a larger dataset covering poverty in Boulder County, Colorado by age, education, race, gender, work experience and more.

U.S. Census Bureau QuickFacts statistics for Boulder Hill CDP, Illinois. QuickFacts data are derived from: Population Estimates, American Community Survey, Census of Population and Housing, Current Population Survey, Small Area Health Insurance Estimates, Small Area Income and Poverty Estimates, State and County Housing Unit Estimates, County Business Patterns, Nonemployer Statistics, Economic Census, Survey of Business Owners, Building Permits.

About this dataset

Context

The dataset tabulates the data for the Boulder City, NV population pyramid, which represents the Boulder City population distribution across age and gender, using estimates from the U.S. Census Bureau American Community Survey (ACS) 2019-2023 5-Year Estimates. It lists the male and female population for each age group, along with the total population for those age groups. Higher numbers at the bottom of the table suggest population growth, whereas higher numbers at the top indicate declining birth rates. Furthermore, the dataset can be utilized to understand the youth dependency ratio, old-age dependency ratio, total dependency ratio, and potential support ratio.

Key observations

• Youth dependency ratio, which is the number of children aged 0-14 per 100 persons aged 15-64, for Boulder City, NV, is 27.8.
• Old-age dependency ratio, which is the number of persons aged 65 or over per 100 persons aged 15-64, for Boulder City, NV, is 52.5.
• Total dependency ratio for Boulder City, NV is 80.3.
• Potential support ratio, which is the number of youth (working age population) per elderly, for Boulder City, NV is 1.9.

Content

When available, the data consists of estimates from the U.S. Census Bureau American Community Survey (ACS) 2019-2023 5-Year Estimates.

Age groups:

• Under 5 years
• 5 to 9 years
• 10 to 14 years
• 15 to 19 years
• 20 to 24 years
• 25 to 29 years
• 30 to 34 years
• 35 to 39 years
• 40 to 44 years
• 45 to 49 years
• 50 to 54 years
• 55 to 59 years
• 60 to 64 years
• 65 to 69 years
• 70 to 74 years
• 75 to 79 years
• 80 to 84 years
• 85 years and over

Variables / Data Columns

• Age Group: This column displays the age group for the Boulder City population analysis. Total expected values are 18 and are define above in the age groups section.
• Population (Male): The male population in the Boulder City for the selected age group is shown in the following column.
• Population (Female): The female population in the Boulder City for the selected age group is shown in the following column.
• Total Population: The total population of the Boulder City for the selected age group is shown in the following column.

Good to know

Margin of Error

Data in the dataset are based on the estimates and are subject to sampling variability and thus a margin of error. Neilsberg Research recommends using caution when presening these estimates in your research.

Custom data

If you do need custom data for any of your research project, report or presentation, you can contact our research staff at research@neilsberg.com for a feasibility of a custom tabulation on a fee-for-service basis.

Inspiration

Neilsberg Research Team curates, analyze and publishes demographics and economic data from a variety of public and proprietary sources, each of which often includes multiple surveys and programs. The large majority of Neilsberg Research aggregated datasets and insights is made available for free download at https://www.neilsberg.com/research/.

Recommended for further research

This dataset is a part of the main dataset for Boulder City Population by Age. You can refer the same here

This data contains information related to officer-initated stops by the City of Boulder Police Department. Information on the outcome of the stop (stop location, duration, search, and result) is included in this file. See the "Demographics of Police Stops" dataset for more details on the demographics of the person stopped (sex, race, ethnicity, year of birth, whether they are a Boulder resident). This demographic data is collected at the stop level, and no individual-level identifiers are recorded in the system during a stop.The data published are limited to stops where the officer initiated, or had discretion, in making a stop. Instances where an officer is responding to a community or police call are considered non-discretionary, and demographics information is not collected for those stops and not included here. There are some instances of non-discretion within a stop interaction as well. For example, there may be instances where there is an outstanding felony warrant for the person stopped, and by law the officer must arrest that person.Please read the methodology and data dictionary documents for more information. The fields for this demographics dataset are referred to as the "Results" file in the data dictionary.

The median income indicates the income bracket separating the income earners into two halves of equal size.

Graph and download economic data for Employed Persons in Boulder County, CO (LAUCN080130000000005) from Jan 1990 to May 2025 about Boulder County, CO; Boulder; CO; household survey; employment; persons; and USA.

Graph and download economic data for Civilian Labor Force in Boulder County, CO (LAUCN080130000000006A) from 1990 to 2024 about Boulder County, CO; Boulder; CO; civilian; labor force; labor; household survey; and USA.

This dataset tracks annual asian student percentage from 1991 to 2023 for Boulder High School vs. Colorado and Boulder Valley School District No. Re2

Graph and download economic data for Unemployed Persons in Boulder, CO (MSA) (LAUMT081450000000004) from Jan 1990 to May 2025 about Boulder, CO, household survey, unemployment, persons, and USA.

Male Poverty Rate Statistics for 2023. This is part of a larger dataset covering poverty in Boulder County, Colorado by age, education, race, gender, work experience and more.

About this dataset

Context

The dataset tabulates the Boulder County population by age. The dataset can be utilized to understand the age distribution and demographics of Boulder County.

Content

The dataset constitues the following three datasets

• Boulder County, CO Age Group Population Dataset: A complete breakdown of Boulder County age demographics from 0 to 85 years, distributed across 18 age groups
• Boulder County, CO Age Cohorts Dataset: Children, Working Adults, and Seniors in Boulder County - Population and Percentage Analysis
• Boulder County, CO Population Pyramid Dataset: Age Groups, Male and Female Population, and Total Population for Demographics Analysis

Good to know

Margin of Error

Data in the dataset are based on the estimates and are subject to sampling variability and thus a margin of error. Neilsberg Research recommends using caution when presening these estimates in your research.

Custom data

If you do need custom data for any of your research project, report or presentation, you can contact our research staff at research@neilsberg.com for a feasibility of a custom tabulation on a fee-for-service basis.

Inspiration

Neilsberg Research Team curates, analyze and publishes demographics and economic data from a variety of public and proprietary sources, each of which often includes multiple surveys and programs. The large majority of Neilsberg Research aggregated datasets and insights is made available for free download at https://www.neilsberg.com/research/.

Financial overview and grant giving statistics of Boulder Philharmonic Orchestra