54,060 people (2024 Census estimate, +2.8% since 2020)
416 square miles of land · 130 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.
11 active community water systems list Washington County in the area they serve, reporting 45,692 people served in all (a system that crosses county lines counts its whole population).
| BARTLESVILLE surface water · local government · OK1021401 | 34,748 served |
| DEWEY PUBLIC WORKS AUTHORITY buys surface water · local government · OK3007402 | 3,490 served |
| WASHINGTON CO RWD #2 buys surface water · local government · OK3007403 | 2,250 served |
| WASHINGTON CO RWD #1 buys surface water · local government · OK3007401 | 1,375 served |
| WASHINGTON CO RWD #5 buys surface water · local government · OK3007409 | 900 served |
| LE ANN WATER buys surface water · local government · OK3007407 | 750 served |
| COPAN PWA surface water · local government · OK1021417 | 733 served |
| RAMONA PUBLIC WORKS AUTHORITY buys surface water · local government · OK3007408 | 564 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 178 people were held in Washington County's jail, in Vera's latest figure (2023), or 553 per 100,000 residents ages 15–64. In 2018 it was about 170.
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.
4 school districts have their office in Washington County. School taxes are usually the largest part of a property tax bill.
Spent $65.6 million — $60.7 million to run schools, about $9,825 per student, plus $3.9 million on buildings and equipment. Money in: $27 million local (mostly property tax), $34.5 million state, $8.9 million federal. Long-term debt: $19 million.
Spent $12.2 million — $11.7 million to run schools, about $9,506 per student, plus $430,000 on buildings and equipment. Money in: $3.2 million local (mostly property tax), $8.4 million state, $1.6 million federal. Long-term debt: $1.3 million.
Spent $10 million — $9.1 million to run schools, about $11,919 per student, plus $912,000 on buildings and equipment. Money in: $3.5 million local (mostly property tax), $4.1 million state, $2 million federal. Long-term debt: $1.7 million.
Spent $2.7 million — $2.7 million to run schools, about $11,809 per student, plus $34,000 on buildings and equipment. Money in: $1.5 million local (mostly property tax), $1.3 million state, $489,000 federal. Long-term debt: $1.3 million.
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 Low compared with other U.S. counties. FEMA estimates natural hazards cost Washington County about $31.8 million a year on average in buildings, crops and lives. Ability to bounce back (community resilience): Relatively Moderate; social vulnerability: Relatively Moderate.
Source: FEMA National Risk Index (December 2025), expected annual loss. Ratings compare counties nationwide; they're estimates, not predictions.
215 bridges in Washington County: 81 in good condition, 110 fair, and 24 poor (11.2%). “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.
| FAU 6112 (TUXEDO B over COON CREEK · built 1985 | 7,000 vehicles a day |
| FAU 6112 (TUXEDO B over CANEY RIVER · built 1958 | 5,000 vehicles a day |
| N3934 (SUNSET BLVD over BUTTER CREEK · built 1965 | 2,500 vehicles a day |
| FAS 7409 over BUTLER CREEK · built 1965 | 1,000 vehicles a day |
| 7434C MAJOR over KEELER CREEK · built 1941 | 902 vehicles a day |
| 7420C MAJOR over FISH CREEK · built 1970 | 746 vehicles a day |
Source: Federal Highway Administration, National Bridge Inventory (2025 submission). Includes state, county and city bridges.
Federal grants paid for $58.4 million of work in Washington County in fiscal 2025, about $1,114 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.
Registration deadlines, early voting and polling places for Oklahoma are on the federal site vote.gov, which links to the state's official election office.
The budget, property tax rates, audits, local officials and offices for Washington 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 Washington County built: brayden.ozark@gmail.com.
More of Oklahoma: the state government and every county in Oklahoma.
Nearby counties: Nowata County (17 mi) · Rogers County (28 mi) · Osage County (28 mi) · Montgomery County, KS (35 mi) · Chautauqua County, KS (36 mi) · Craig County (39 mi).