The primary source for Colorado population and demographic information
The State Demography Office provides population estimates and forecasts for Colorado’s regions, counties, and municipalities developed by the State Demography Office and the U.S. Census Bureau.
You can access data visualizations, data spreadsheets, data lookup applications, data spreadsheets, data links, and technical documentation by topic or geography by clicking on one of the buttons on the left.
PLEASE NOTE:
1/10/2025: We have updated our question submission system. Please refresh your page before submitting a question.
The State Demography Office wants to ensure everyone is able to access the information they need. If you feel this site is not accessible to you, please click on the "Contact SDO" button below and we will be happy to assist you.
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This application creates custom tables for SDO Regional estimates by race, Hispanic Origin, age and sex.
Estimated data is based on 2020 Census population estimates. These estimates provide data broken down by:
These estimates should not be compared to the 2010 Census race counts as the design of the questions and the processing of the 2020 Census responses differed from the questions and processing of the 2010 Census responses and should be considered a break in the series.
A spreadsheet with detailed information by Race, Hispanic Origin, age and sex for 2010-2020 is available on the SDO Population Spreadsheets page.
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