78,323 people (2024 Census estimate, +5.1% since 2020)
33 square miles of land · 2,376 people per square mile
“Highest” and “lowest” are just order, not grades: a high rank for poverty or hazard losses means more of it. Each figure's source is in its section below.
3 active community water systems list Broomfield County in the area they serve, reporting 108,783 people served in all (a system that crosses county lines counts its whole population).
| BROOMFIELD CITY AND COUNTY OF surface water · local government · CO0107155 | 106,153 served |
| FRONT RANGE buys surface water · private · CO0180288 | 1,620 served |
| CIMARRON VILLAGE buys surface water · private · CO0180175 | 1,010 served |
Source: U.S. EPA Safe Drinking Water Information System (SDWIS), active community systems, . Look up any system's violations and test results with EPA's search using its ID.
About 76 people were held in Broomfield County's jail, in Vera's latest figure (2025). In 2020 it was about 57.
Source: Vera Institute of Justice, Incarceration Trends (built from federal Bureau of Justice Statistics jail surveys). Counties without their own jail, or that share one, may show no figure.
Source: County Health Rankings & Roadmaps 2025 (University of Wisconsin Population Health Institute), which gathers federal data (CDC, Census, and others); measures cover different recent years. Blank lines aren't reported for small counties.
Overall risk: Very Low compared with other U.S. counties. FEMA estimates natural hazards cost Broomfield County about $17.1 million a year on average in buildings, crops and lives. Ability to bounce back (community resilience): Very High; social vulnerability: Very Low.
Source: FEMA National Risk Index (December 2025), expected annual loss. Ratings compare counties nationwide; they're estimates, not predictions.
60 bridges in Broomfield County: 30 in good condition, 29 fair, and 1 poor (1.7%). “Poor” means a main part — the deck, the beams, or the supports — is rated 4 or lower on the federal 0–9 scale. It doesn't mean unsafe to drive; unsafe bridges are closed.
| SH 121 ML SBND over US 287 ML RR SPUR · built 1972 | 25,000 vehicles a day |
Source: Federal Highway Administration, National Bridge Inventory (2025 submission). Includes state, county and city bridges.
Federal grants paid for $3.9 million of work in Broomfield County in fiscal 2025, about $53 per resident — to the county, cities, schools, hospitals, nonprofits and others.
Source: USAspending.gov, grants by place of performance, fiscal 2025 (Oct. 2024 to Sept. 2025). Search it by county to see each award.
From Grants.gov: posted grants listing county governments as eligible, soonest deadline first; research-only and overseas programs left out; list updated 2026-10-13, refreshed weekly. 62 are open in all. Cities, towns, school districts and nonprofits have their own lists there.
General election: Tuesday, November 3, 2026. Ballots mailed to voters: 2026-10-02 to 2026-10-09. Drop boxes open: 2026-10-12. In-person voting at voter centers: 2026-10-19 to 2026-11-03. Last day to register and still get a ballot by mail: 2026-10-26. Last suggested day to mail your ballot back: 2026-10-26. Election Day: 2026-11-03. Last day to fix a signature problem: 2026-11-12.
Source: Colorado Secretary of State, Oct. 2, 2026 · Colorado Secretary of State, Sept. 23, 2026 · Colorado Secretary of State — Election Day FAQs
The budget, property tax rates, audits, local officials and offices for Broomfield County come from the county's own records, which we haven't gathered — not gathered, never hidden. See what a full county site looks like, or ask to have Broomfield County built: brayden.ozark@gmail.com.
More of Colorado: the state government and every county in Colorado.
Nearby counties: Denver County (16 mi) · Boulder County (21 mi) · Gilpin County (26 mi) · Jefferson County (28 mi) · Clear Creek County (38 mi) · Adams County (38 mi).