Colorado · United States
Boulder population
106,803people · latest figure
Boulder has a population of 106,803, making it the 297th largest place we list in United States. It is in Colorado.
Boulder holds under a tenth of one per cent of United States's 349,035,494 people. New York City, the largest place we list there, is 82 times its size. Twenty years earlier the World Gazetteer recorded 91,521, a rise of 17%.
The 2005 figure comes from the World Gazetteer archive restored on this site. The two sources may draw the settlement's boundary differently, so treat the change as indicative rather than exact. Why figures differ.
Boulder is in Colorado, which has 282 recorded places.
Nearby in size
| Place | Region | Population |
|---|---|---|
| Pompano Beach | Florida | 107,762 |
| South Fulton | Georgia | 107,436 |
| Norwalk | California | 107,140 |
| Broken Arrow | Oklahoma | 106,563 |
| Daly City | California | 106,562 |
| Sandy Springs | Georgia | 105,330 |
All places in United States → · Colorado →
Figures are the latest available in GeoNames (CC BY 4.0), which draws on national censuses of varying dates — treat them as recent, not same-year. Country totals are UN World Population Prospects 2024 (medium variant) where the UN lists the country separately; the handful it reports under a parent state keep a GeoNames figure and are marked as such. Sources & method.