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County · Colorado

Boulder County

330,262Population
-0.2 %Change since 2020
92Net migration
4.0 %Unemployment rate

Facts

Population
330,262 (2024)
Change since 2020
-0.2 %
Net migration
92 (2023)
Unemployment rate
4.0 % (2025)
Population base, April 2020
330,770 (2020)
Births
2,422 (2023)
Births per 1,000 residents, 2023
7.3
Deaths
2,100 (2023)
Deaths per 1,000 residents, 2023
6.4
Natural change, 2023
322
International migration
2,052 (2023)
Domestic migration
-1,960 (2023)
Net migration per 1,000, 2023
0.3
Postal code
CO
FIPS code
08013

Sources: US Census Bureau — Population Estimates, Bureau of Labor Statistics — LAUS

Unemployment rate, annual average

199020254.04.8
PeriodValue
20254.0 %
20244.1 %
20233.1 %
20222.7 %
20214.6 %
20206.0 %
20192.4 %
20182.8 %
20172.4 %
20162.7 %
20153.0 %
20144.1 %

Population estimates, 2020–2024

20202024330.3K331K
PeriodValue
2024330,262
2023328,419
2022328,039
2021327,133
2020330,953