U.S. PLACE PROFILE
Boulder, CO
Boulder is a City in Boulder County, Colorado. The loaded 2025 population estimate is 105,689.
Published locationColorado
Population estimate105,6892025 loaded Census estimate
CountyBoulder CountyPrimary loaded county
Place typeCityCensus place classification
Coordinates40.02443, -105.25125Census representative point
EXPLORE FROM BOULDER
Distance and nearby-place tools
Only tools with enough qualifying stored data are linked below.
Closest published places
Nearest qualifying Census places by straight-line distance.
Louisville, CO6.9 miles · SE
Superior, CO8.1 miles · SE
Lafayette, CO8.3 miles · E→Jamestown, CO10.1 miles · NW
Erie, CO11.3 miles · E→Broomfield, CO11.7 miles · SE→County coverage
Some incorporated places cross county lines. These county-part values come from the loaded Census county-place-part population layer.
| County | 2025 population in this place part |
|---|---|
| Boulder County | 105,689 |
DATA COVERAGE
What is available for Boulder
Geographic identityNearby placesPopulation estimate100-mile radius25-mile radius50-mile radius
PRIMARY GEOGRAPHIC SOURCE
U.S. Census Bureau
Place identity, coordinates and geographic identifiers are tied to the loaded Census source record for this location.