369,745 people (2024 Census estimate, +11.5% since 2020)
3,985 square miles of land · 93 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.
58 active community water systems list Weld County in the area they serve, reporting 360,563 people served in all (a system that crosses county lines counts its whole population).
| GREELEY CITY OF surface water · local government · CO0162321 | 132,310 served |
| FIRESTONE TOWN OF buys surface water · local government · CO0162476 | 27,798 served |
| JOHNSTOWN TOWN OF surface water · local government · CO0162418 | 27,295 served |
| WINDSOR TOWN OF buys surface water · local government · CO0162843 | 23,500 served |
| EVANS CITY OF buys surface water · local government · CO0162260 | 19,369 served |
| FREDERICK TOWN OF buys surface water · local government · CO0162288 | 17,173 served |
| NORTH WELD COUNTY WD buys surface water · local government · CO0162553 | 15,890 served |
| FT LUPTON CITY OF surface water · local government · CO0162291 | 12,099 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 594 people were held in Weld County's jail, in Vera's latest figure (2025). In 2020 it was about 607.
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.
12 school districts have their office in Weld County. School taxes are usually the largest part of a property tax bill.
Spent $481.7 million — $300.8 million to run schools, about $13,549 per student, plus $155.1 million on buildings and equipment. Money in: $174.3 million local (mostly property tax), $169.6 million state, $51.1 million federal. Long-term debt: $386.6 million.
Spent $123 million — $93.8 million to run schools, about $11,404 per student, plus $18.5 million on buildings and equipment. Money in: $98.2 million local (mostly property tax), $33.7 million state, $3.3 million federal. Long-term debt: $114.8 million.
Spent $144.1 million — $51.7 million to run schools, about $13,357 per student, plus $85.6 million on buildings and equipment. Money in: $38.2 million local (mostly property tax), $36.3 million state, $3.9 million federal. Long-term debt: $150.1 million.
Spent $40.1 million — $36.4 million to run schools, about $13,061 per student, plus $486,000 on buildings and equipment. Money in: $37.2 million local (mostly property tax), $5.3 million state, $3.7 million federal. Long-term debt: $64.5 million.
Spent $37.1 million — $33.5 million to run schools, about $13,297 per student, plus $104,000 on buildings and equipment. Money in: $30.5 million local (mostly property tax), $8.6 million state, $4.5 million federal. Long-term debt: $50.1 million.
Spent $58.2 million — $25.4 million to run schools, about $12,839 per student, plus $26.3 million on buildings and equipment. Money in: $38.5 million local (mostly property tax), $4.7 million state, $1.2 million federal. Long-term debt: $124.2 million.
Spent $33.6 million — $30.3 million to run schools, about $16,511 per student, plus $829,000 on buildings and equipment. Money in: $29.4 million local (mostly property tax), $6.1 million state, $1.6 million federal. Long-term debt: $44.1 million.
Spent $20.5 million — $18 million to run schools, about $16,456 per student, plus $981,000 on buildings and equipment. Money in: $27.4 million local (mostly property tax), $951,000 state, $1.3 million federal. Long-term debt: $33.1 million.
And 4 more.
Source: U.S. Census Bureau, 2023 Annual Survey of School System Finances. Districts are listed by the county of their main office; some serve neighboring counties too.
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: Relatively Moderate compared with other U.S. counties. FEMA estimates natural hazards cost Weld County about $104.7 million a year on average in buildings, crops and lives. Ability to bounce back (community resilience): Relatively Moderate; social vulnerability: Very Low.
Source: FEMA National Risk Index (December 2025), expected annual loss. Ratings compare counties nationwide; they're estimates, not predictions.
608 bridges in Weld County: 211 in good condition, 376 fair, and 21 poor (3.5%). “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.
| US 34 ML WBND over US 85 BUS RT · built 1962 | 16,500 vehicles a day |
| US 34 EB over UP RR · built 1962 | 16,500 vehicles a day |
| US 34 ML EBND over RAMP TO US85 SB 8TH AVE · built 1968 | 15,000 vehicles a day |
| US 85 ML SBND over SOUTH PLATTE RIVER · built 1955 | 12,500 vehicles a day |
| US 85 ML NBND over CACHE LA POUDRE RIVER · built 1962 | 11,000 vehicles a day |
| US 85 BYPASS SBND over US 85 BUSS RT · built 1962 | 4,750 vehicles a day |
Source: Federal Highway Administration, National Bridge Inventory (2025 submission). Includes state, county and city bridges.
Federal grants paid for $341.1 million of work in Weld County in fiscal 2025, about $1,037 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 Weld 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 Weld County built: brayden.ozark@gmail.com.
More of Colorado: the state government and every county in Colorado.
Nearby counties: Morgan County (36 mi) · Adams County (47 mi) · Laramie County, WY (53 mi) · Broomfield County (54 mi) · Kimball County, NE (57 mi) · Larimer County (58 mi).