Annual Population Estimates by County
The Census Bureau's official population estimate for each Colorado county on July 1 of every year since 1970, with what drove each year's change since 2000: births, deaths, people moving in from abroad and people moving in from or out to the rest of the country. Use it for a county's current population, for half a century of growth or decline, and for whether a county is growing because people are moving there or because births outnumber deaths. The years before 2020 are the Bureau's revised figures for those decades, made after each census, and the 1970 and 1980 censuses' own counts are kept beside them.
- Published by
- US Census Bureau
- Source
- Census
- Original data
- www2.census.gov
- Terms of use
- CC0 1.0 (public domain)
- On the map
- No shapes of its own
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What each record holds, as the publisher describes it: 15 fields.
| Field | Description |
|---|---|
geoid | County identifier: state + county FIPS |
year | The estimate is for July 1 of this year |
vintage | The current release (postcensal) or the census a revised decade ends on (intercensal) |
series | postcensal (2020 on) or intercensal (1970–2019) |
pop_estimate | Resident population on July 1 |
estimates_base | April 1 census count (1970 and 1980 rows) or estimates base (2000, 2010 and 2020 rows) |
pop_change | Change since the previous July 1 |
births | Births in the year to July 1 |
deaths | Deaths in the year to July 1 |
natural_change | Births less deaths |
international_mig | Net international migration |
domestic_mig | Net domestic migration |
net_mig | Net migration, international plus domestic |
residual | Change not attributed to a component |
gq_estimate | Group quarters population on July 1 |