Boulder County, Colorado
Boulder County, Colorado · ZIP 80020, 80025, 80026
- Census data · ACS 2019-2023
- 330,262 (2024 estimate)Population
- 135,230Households
- $102,772Median household income
- $713,900Median home value
- 32Towns with a page
- 23ZIP codes
Boulder County in numbersOfficial sources, refreshed yearly
| Census | Population |
|---|---|
| 2000 | 291,288 |
| 2010 | 294,567 |
| 2020 | 330,758 |
As counted at each census, within the boundaries the area had then; the current estimate is in the glance card.
Sources: Census 2000 Summary File 1: total population, county level, state 08, retrieved November 14, 2026; Census 2010 Summary File 1: total population, county level, state 08, retrieved November 14, 2026; Census 2020 Redistricting Data (P.L. 94-171): total population, county level, state 08, retrieved November 14, 2026.
Median household income $102,772 · Share of households by income, American Community Survey 5-year 2019-2023, table S1901.
Source: American Community Survey 5-year subject table S1901 (household income) 2019–2023, county level, state 08, retrieved November 14, 2026.
- Owner occupied
- 84,461 units
- Renter occupied
- 50,769 units
- Vacancy rate
- 5.3%
Occupied housing units by tenure and the share of all units vacant, American Community Survey 5-year 2019-2023, table DP04.
Source: American Community Survey 5-year data profile 2019–2023, county level, state 08, retrieved November 14, 2026.
159,619 employees in 12,990 establishments with payroll in 2023, all sectors; employers themselves are not named in the source. County Business Patterns counts are published with noise.
Source: County Business Patterns 2023: employment by sector, county level, state 08, retrieved November 14, 2026.
| Measure | Boulder County | Colorado |
|---|---|---|
| Population | 328,317 | 5,810,774 |
| Median household income | $102,772 | $92,470 |
| Median age | 37.5 | 37.5 |
| Median home value | $713,900 | $502,200 |
| Bachelor’s degree or higher | 63.9% | 44.7% |
| Foreign-born residents | 10.0% | 9.6% |
| Owner-occupied homes | 62.5% | 66.3% |
| Mean commute to work | 23.2 minutes | 25.5 minutes |
Source: American Community Survey 5-year data profile 2019–2023, county level, state 08, retrieved November 14, 2026.
Townships, towns and villages in Boulder County32 with a page · sort by any column
| Type | |||
|---|---|---|---|
| Boulder | City | 106,803 | 26.9 sq mi |
| Longmont | City | 99,818 | 29.3 sq mi |
| Lafayette | City | 30,587 | 9.26 sq mi |
| Louisville | City | 20,811 | 7.98 sq mi |
| Superior | Town | 13,654 | 3.93 sq mi |
| Gunbarrel | Census designated place | 10,424 | 6.25 sq mi |
| Niwot | Census designated place | 3,773 | 4.00 sq mi |
| Lyons | Town | 2,155 | 1.36 sq mi |
| Nederland | Town | 1,487 | 1.48 sq mi |
| Lazy Acres | Census designated place | 1,056 | 5.29 sq mi |
| Allenspark | Census designated place | 826 | 11.9 sq mi |
| Paragon Estates | Census designated place | 767 | 1.68 sq mi |
| Altona | Census designated place | 532 | 1.69 sq mi |
| Pine Brook Hill | Census designated place | 497 | 3.03 sq mi |
| St. Ann Highlands | Census designated place | 483 | 1.39 sq mi |
| Sugarloaf | Census designated place | 442 | 2.18 sq mi |
| Eldora | Census designated place | 440 | 4.16 sq mi |
| Tall Timber | Census designated place | 376 | 0.57 sq mi |
| Eldorado Springs | Census designated place | 355 | 2.58 sq mi |
| Gold Hill | Census designated place | 288 | 2.08 sq mi |
| Crisman | Census designated place | 253 | 1.46 sq mi |
| Jamestown | Town | 246 | 0.57 sq mi |
| Sunshine | Census designated place | 240 | 1.73 sq mi |
| Mountain Meadows | Census designated place | 205 | 1.72 sq mi |
| Bonanza Mountain Estates | Census designated place | 132 | 0.17 sq mi |
| Ward | Town | 127 | 0.54 sq mi |
| Bark Ranch | Census designated place | 117 | 0.86 sq mi |
| Glendale | Census designated place | 71 | 1.26 sq mi |
| Valmont | Census designated place | 68 | 0.26 sq mi |
| Seven Hills | Census designated place | 44 | 0.49 sq mi |
| Hidden Lake | Census designated place | 30 | 0.61 sq mi |
| Leyner | Census designated place | 0 | 0.20 sq mi |
Populations: Census Population Estimates, Vintage 2024: subcounty totals, state 08 (2024). Land areas: Census Gazetteer 2025: counties. A dash means the figure is not in the cited file.
County officialsFrom public records
No county official is published yet. Names appear once a researcher drafts them from the county’s own site and a second person approves; office contacts only, never personal details.
Across Boulder County
No job is posted in Boulder County’s towns yet. Employers post from their business dashboard; public job banks are added once their terms are recorded.
No upcoming event is listed in Boulder County's towns yet. Members and businesses add events from any town page.
Nothing has been posted in Boulder County’s towns yet. Join a town to start its feed.
Neighboring counties
Neighboring counties
- Broomfield CountyPopulation 78,323 (2024 estimate)
- Gilpin CountyPopulation 5,963 (2024 estimate)
- Grand CountyPopulation 16,154 (2024 estimate)
- Jefferson CountyPopulation 578,533 (2024 estimate)
- Larimer CountyPopulation 374,574 (2024 estimate)
- Weld CountyPopulation 369,745 (2024 estimate)
Sources: Census county adjacency file 2024, retrieved November 14, 2026; Census Population Estimates, Vintage 2024: subcounty totals, state 08, retrieved November 14, 2026.