Boulder County, Colorado: population and components of change
Source: U.S. Census Bureau, Population Estimates Program, Vintage 2024: County Population Totals and Components of Change 2020-2024 (CO-EST2024-ALLDATA). Figures cover the April 1, 2020 estimates base through July 1, 2024; data fetched 2026-10-30T08:41:21Z.
| Item | Value | As reported |
|---|---|---|
| County | Boulder County | Boulder County |
| State | Colorado | Colorado |
| State FIPS code | 08 | 08 |
| County FIPS code | 013 | 013 |
| Census region (code) | 4 | 4 |
| Census division (code) | 8 | 8 |
| Estimates base, April 1, 2020 | 330,770 | 330770 |
| Resident population, July 1, 2020 | 330,953 | 330953 |
| Resident population, July 1, 2021 | 327,133 | 327133 |
| Resident population, July 1, 2022 | 328,039 | 328039 |
| Resident population, July 1, 2023 | 328,419 | 328419 |
| Resident population, July 1, 2024 | 330,262 | 330262 |
| Numeric population change, 2023 to 2024 | 1,843 | 1843 |
| Births, year to July 1, 2024 | 2,424 | 2424 |
| Deaths, year to July 1, 2024 | 2,114 | 2114 |
| Natural change (births minus deaths), year to July 1, 2024 | 310 | 310 |
| International migration, year to July 1, 2024 | 2,545 | 2545 |
| Domestic migration, year to July 1, 2024 | -1,034 | -1034 |
| Residual, year to July 1, 2024 | 22 | 22 |
| Birth rate per 1,000 population, year to July 1, 2024 | 7.3602 | 7.3601637211 |
| Death rate per 1,000 population, year to July 1, 2024 | 6.4189 | 6.4188886578 |
| Natural change rate per 1,000 population, year to July 1, 2024 | 0.9413 | 0.9412750633 |
| International migration rate per 1,000 population, year to July 1, 2024 | 7.7276 | 7.727564633 |
| Domestic migration rate per 1,000 population, year to July 1, 2024 | -3.1396 | -3.139607792 |
| Group quarters population, July 1, 2024 | 15,650 | 15650 |
Values as reported by the source: county_name=Boulder County, state_name=Colorado, state_fips=08, county_fips=013, region=4, division=8, estimates_base_2020=330770, pop_2020=330953, pop_2021=327133, pop_2022=328039, pop_2023=328419, pop_2024=330262, npopchg_2024=1843, births_2024=2424, deaths_2024=2114, naturalchg_2024=310, internationalmig_2024=2545, domesticmig_2024=-1034, residual_2024=22, rbirth_2024=7.3601637211, rdeath_2024=6.4188886578, rnaturalchg_2024=0.9412750633, rinternationalmig_2024=7.727564633, rdomesticmig_2024=-3.139607792, gq_estimates_2024=15650