County
| Name | Status | Population census 1990-04-01 | Population census 2000-04-01 | Population census 2010-04-01 | |
|---|---|---|---|---|---|
| Boulder | County | 225,339 | 269,784 | 294,567 | o |
| Colorado | Federal State | 3,294,473 | 4,302,086 | 5,029,196 |
Contents: Places
| Name | Status | County | Population census 1990-04-01 | Population census 2000-04-01 | Population census 2010-04-01 | |
|---|---|---|---|---|---|---|
| Allenspark | Census-Designated Place | Boulder | ... | ... | 528 | o |
| Altona | Census-Designated Place | Boulder | ... | ... | 501 | o |
| Bark Ranch | Census-Designated Place | Boulder | ... | ... | 213 | o |
| Bonanza Mountain Estates | Census-Designated Place | Boulder | ... | ... | 128 | o |
| Boulder | City | Boulder | 86,098 | 94,213 | 97,385 | o |
| Coal Creek | Census-Designated Place | Gilpin / Boulder / Jefferson | ... | 2,323 | 2,400 | o |
| Crisman | Census-Designated Place | Boulder | ... | ... | 186 | o |
| Eldora | Census-Designated Place | Boulder | ... | 170 | 142 | o |
| Eldorado Springs | Census-Designated Place | Boulder | ... | ... | 585 | o |
| Erie | Town | Weld / Boulder | 1,263 | 6,420 | 18,135 | o |
| Glendale | Census-Designated Place | Boulder | ... | ... | 69 | o |
| Gold Hill | Census-Designated Place | Boulder | ... | 210 | 230 | o |
| Gunbarrel | Census-Designated Place | Boulder | 9,388 | 9,435 | 9,263 | o |
| Hidden Lake | Census-Designated Place | Boulder | ... | ... | 31 | o |
| Jamestown | Town | Boulder | ... | 269 | 274 | o |
| Lafayette | City | Boulder | 14,866 | 23,145 | 24,453 | o |
| Lazy Acres | Census-Designated Place | Boulder | ... | ... | 920 | o |
| Leyner | Census-Designated Place | Boulder | ... | ... | 29 | o |
| Longmont | City | Weld / Boulder | 52,214 | 71,564 | 86,270 | o |
| Louisville | City | Boulder | 12,543 | 18,928 | 18,376 | o |
| Lyons | Town | Boulder | 1,282 | 1,584 | 2,033 | o |
| Mountain Meadows | Census-Designated Place | Boulder | ... | ... | 274 | o |
| Nederland | Town | Boulder | 1,106 | 1,377 | 1,445 | o |
| Niwot | Census-Designated Place | Boulder | 2,666 | 4,160 | 4,006 | o |
| Paragon Estates | Census-Designated Place | Boulder | ... | ... | 928 | o |
| Pine Brook Hill | Census-Designated Place | Boulder | ... | ... | 983 | o |
| Seven Hills | Census-Designated Place | Boulder | ... | ... | 121 | o |
| St. Ann Highlands | Census-Designated Place | Boulder | ... | ... | 288 | o |
| Sugarloaf | Census-Designated Place | Boulder | ... | ... | 261 | o |
| Sunshine | Census-Designated Place | Boulder | ... | ... | 230 | o |
| Superior | Town | Boulder / Jefferson | 276 | 9,061 | 12,483 | o |
| Tall Timber | Census-Designated Place | Boulder | ... | ... | 208 | o |
| Valmont | Census-Designated Place | Boulder | ... | ... | 59 | o |
| Ward | Town | Boulder | 150 | 174 | 150 | o |
Source: US Census Bureau (web).
2000 and 2010 population of incorporated places in the boundaries of 2010.
2011-04-03WWW.CITYPOPULATION.DE
