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The population count of Arapahoe County, CO was 636,671 in 2018. The population count of Boulder County, CO was 321,030 in 2018. The population count of Denver County, CO was 693,417 in 2018.

Population

Population Change

Above charts are based on data from the U.S. Census American Community Survey | ODN Dataset | API - Notes:

1. ODN datasets and APIs are subject to change and may differ in format from the original source data in order to provide a user-friendly experience on this site.

2. To build your own apps using this data, see the ODN Dataset and API links.

3. If you use this derived data in an app, we ask that you provide a link somewhere in your applications to the Open Data Network with a citation that states: "Data for this application was provided by the Open Data Network" where "Open Data Network" links to http://opendatanetwork.com. Where an application has a region specific module, we ask that you add an additional line that states: "Data about REGIONX was provided by the Open Data Network." where REGIONX is an HREF with a name for a geographical region like "Seattle, WA" and the link points to this page URL, e.g. http://opendatanetwork.com/region/1600000US5363000/Seattle_WA

Demographics and Population Datasets Involving Denver County, CO or Boulder County, CO or Arapahoe County, CO

  • API

    Restaurant Inspections in Boulder County

    data.colorado.gov | Last Updated 2024-10-31T10:58:26.000Z

    Restaurant Inspection data for food service facilities within Boulder County, CO provided by Boulder County.

  • API

    Septic Systems in Boulder County Colorado

    data.colorado.gov | Last Updated 2024-10-31T10:57:49.000Z

    Septic system data including type, status, location, etc for dwellings within Boulder County, CO provided by Boulder County.

  • API

    Retail Reports by County in Colorado

    data.colorado.gov | Last Updated 2024-10-31T11:04:24.000Z

    Number of returns, gross sales, retail sales, state net taxable sales, retailers, and state sales tax summarized monthly by county from the Colorado Department of Revenue.

  • API

    Consumer Price Index 2014

    data.colorado.gov | Last Updated 2024-10-31T11:00:27.000Z

    Consumer Price Index for the state from US Bureau of Labor and Statistics from 1913 to 2014 provided by the Colorado Department of Labor and Employment (CDLE).

  • API

    Business Improvement Districts Denver

    data.colorado.gov | Last Updated 2024-10-31T11:00:17.000Z

    Map of Business improvement districts in Denver, CO.

  • API

    Hours Worked by Employees in Colorado

    data.colorado.gov | Last Updated 2024-10-31T11:00:13.000Z

    Estimated employment counts by month and industry with hours worked by industry from Colorado Department of Labor and Employment (CDLE), since 1990.

  • API

    Northern Colorado Snow Characteristics

    data.colorado.gov | Last Updated 2024-10-31T10:58:54.000Z

    This data set presents snow depth, snow water equivalence (SWE), snow wetness data, and snow pit data from two pine sites and a small clearing at the Local Scale Observation Site (LSOS) of the Cold Land Processes Field Experiment (CLPX) in northern Colorado.

  • API

    Census Counties in Colorado 2010

    data.colorado.gov | Last Updated 2024-10-31T11:03:16.000Z

    Census Data is collected every 10 years by mail surveys to every household with primary data collection fields of population, gender, race and number of occupants. Data includes demographics, education level, commute information, and more subset to Colorado by the Department of Local Affairs (DOLA).

  • API

    Census County Subdivisions SF1 in Colorado 2000

    data.colorado.gov | Last Updated 2024-10-31T11:02:45.000Z

    Census Data is collected every 10 years by mail surveys to every household with primary data collection fields of population, gender, race and number of occupants. Data includes demographics, education level, commute information, and more subset to Colorado by the Department of Local Affairs (DOLA).

  • API

    Census Counties SF3 in Colorado 2000

    data.colorado.gov | Last Updated 2024-10-31T11:02:53.000Z

    Census Data is collected every 10 years by mail surveys to every household with primary data collection fields of population, gender, race and number of occupants. Data includes demographics, education level, commute information, and more subset to Colorado by the Department of Local Affairs (DOLA).