Broomfield County, Colorado
County seat: Broomfield · Population 79,174 (2025) · 33 sq mi
Broomfield County is the 12th most populous of Colorado's 64 counties, with 79,174 people (2025 estimate). Its county seat is Broomfield. It is part of the Region 3: Denver Metropolitan Area region, one of the 14 Planning and Management Regions of Colorado. The map shows its 1 city or town and the 4 neighboring counties.
Broomfield County facts
- County seat
- Broomfield
- Population (2025 estimate)
- 79,174 +6.8% since 2020
- Land area
- 33 sq mi 64th largest of 64
- Water area
- 1 sq mi
- Population density
- 2,402 per sq mi
- Established
- 2001
- Named after
- Sorghum genus of plants
- Largest city
- Broomfield 79,174
- Median household income
- $123,874
- Cities and towns
- 1
- ZIP codes
- 6
- Time zone
- Mountain
- FIPS code
- 08014
Cities and towns in Broomfield County
Broomfield County has 1 incorporated place. Populations count the people living inside Broomfield County; cities that cross a county line also list the other counties.
| Name | Type | Population 2025 | Also in |
|---|---|---|---|
| Broomfield (county seat) | City | 79,174 |
ZIP codes in Broomfield County
6 ZIP codes reach into Broomfield County. ZIP codes ignore county lines, so some also cover a neighboring county.
- 80020 also Boulder, Jefferson and Adams counties
- 80021 also Jefferson County
- 80023 also Adams County
- 80026 also Boulder County
- 80234 also Adams County
- 80516 also Weld and Boulder counties
Population of Broomfield County, 2020–2025
Broomfield County grew by 5,071 people (+6.8%) between April 2020 and July 2025: 782 more births than deaths and a net gain of 4,288 people from migration.
| Year (July 1) | Population |
|---|---|
| 2020 | 74,482 |
| 2021 | 75,413 |
| 2022 | 76,133 |
| 2023 | 76,972 |
| 2024 | 78,403 |
| 2025 | 79,174 |
Neighboring counties
- Boulder County northwest · 328,560 people
- Adams County east · 554,668 people
- Jefferson County south · 580,451 people
- Weld County northeast · 378,426 people
Printable Broomfield County map
The PDF is a vector file with real text: it prints sharp on Letter paper and you can search it for a town. The PNG is 2400 pixels wide for slides and documents. Both are free to use with a credit to WhichCounty.
- PDF (Letter) (51 KB)
- PNG (2400 px) (57 KB)
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Sources
- Boundaries: U.S. Census Bureau, 2025 Cartographic Boundary Files (1:500,000).
- Population: Census Bureau county and city estimates, Vintage 2025. CDP populations: American Community Survey 2020–2024.
- Places and ZIP codes: Census Bureau 2026 Gazetteer and 2020 ZIP Code Tabulation Area relationship files.
- County seat, founding year and name origin: Wikidata (CC0), checked against state sources.
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