Boulder
County in Colorado
County
The population development of Boulder.
| Name | Status | Population Census 1990-04-01 | Population Census 2000-04-01 | Population Census 2010-04-01 | Population Census 2020-04-01 | Population Estimate 2023-07-01 | |
|---|---|---|---|---|---|---|---|
| Boulder | County | 209,050 | 269,755 | 294,567 | 330,759 | 326,831 | → |
| Colorado | State | 3,294,394 | 4,301,261 | 5,029,196 | 5,773,707 | 5,877,610 |
Contents: Incorporated Places
The population development of the incorporated places in Boulder.
icon links to further information about a selected place including its population structure (gender, age groups, age distribution, urbanization, »race«, ethnicity).| Name | Status | County | Population Census 1990-04-01 | Population Census 2000-04-01 | Population Census 2010-04-01 | Population Census 2020-04-01 | Population Estimate 2023-07-01 | |
|---|---|---|---|---|---|---|---|---|
| Boulder | City | Boulder | 85,975 | 94,213 | 97,613 | 108,254 | 105,898 | → |
| Erie | Town | Weld / Boulder | 1,885 | 6,420 | 18,177 | 30,057 | 35,269 | → |
| Jamestown | Town | Boulder | 173 | 209 | 274 | 256 | 245 | → |
| Lafayette | City | Boulder | 15,052 | 23,145 | 24,482 | 30,409 | 30,439 | → |
| Longmont | City | Boulder / Weld | 52,203 | 71,564 | 86,330 | 98,905 | 98,630 | → |
| Louisville | City | Boulder | 12,618 | 18,928 | 18,409 | 21,214 | 20,390 | → |
| Lyons | Town | Boulder | 1,244 | 1,670 | 2,119 | 2,213 | 2,151 | → |
| Nederland | Town | Boulder | 1,098 | 1,290 | 1,445 | 1,467 | 1,488 | → |
| Superior | Town | Boulder / Jefferson | 294 | 9,061 | 12,481 | 13,095 | 13,361 | → |
| Ward | Town | Boulder | 150 | 174 | 150 | 129 | 126 | → |
Source: U.S. Census Bureau.
Explanation: Latest available rebased population figures are used. In case of significant changes, they were recalculated by using census block data.