130,333 people (2024 Census estimate, +0.4% since 2020)
329 square miles of land · 396 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.
36 active community water systems list Washington County in the area they serve, reporting 144,407 people served in all (a system that crosses county lines counts its whole population).
| WESTERLY WATER DEPARTMENT groundwater · local government · RI1559512 | 35,298 served |
| NORTH KINGSTOWN TOWN OF groundwater · local government · RI1559517 | 27,732 served |
| VEOLIA WATER WAKEFIELD RHODE ISLAND INC groundwater · private · RI1615624 | 21,225 served |
| UNIVERSITY OF RHODE ISLAND groundwater · state · RI1858422 | 19,354 served |
| BLOCK ISLAND WATER COMPANY groundwater · local government · RI1858430 | 9,999 served |
| NARRAGANSETT WATER SYSTEM-POINT JUDITH buys groundwater · local government · RI1858428 | 8,210 served |
| SOUTH KINGSTOWN-SOUTH SHORE groundwater · local government · RI1615623 | 6,170 served |
| NARRAGANSETT WATER DEPT-NORTH END buys groundwater · local government · RI1858429 | 4,432 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.
No county jail figure in the national data for Washington County — not gathered, never hidden. Some counties share a regional jail or have none.
6 school districts have their office in Washington County. School taxes are usually the largest part of a property tax bill.
Spent $86.2 million — $80.5 million to run schools, about $20,964 per student, plus $3.4 million on buildings and equipment. Money in: $63.9 million local (mostly property tax), $16.6 million state, $4.7 million federal. Long-term debt: $26.1 million.
Spent $72.9 million — $66.4 million to run schools, about $21,414 per student, plus $3.7 million on buildings and equipment. Money in: $47.2 million local (mostly property tax), $20.5 million state, $4.4 million federal. Long-term debt: $28.6 million.
Spent $68.6 million — $63.6 million to run schools, about $25,331 per student, plus $792,000 on buildings and equipment. Money in: $57.1 million local (mostly property tax), $8.4 million state, $3.5 million federal. Long-term debt: $12.7 million.
Spent $70.9 million — $62.3 million to run schools, about $27,118 per student, plus $4.9 million on buildings and equipment. Money in: $49.9 million local (mostly property tax), $13.8 million state, $6.1 million federal. Long-term debt: $74.8 million.
Spent $36.2 million — $31.9 million to run schools, about $28,265 per student, plus $2.8 million on buildings and equipment. Money in: $30.5 million local (mostly property tax), $4 million state, $1.8 million federal. Long-term debt: $10.1 million.
Spent $6.7 million — $5.8 million to run schools, about $44,099 per student, plus $783,000 on buildings and equipment. Money in: $5.7 million local (mostly property tax), $819,000 state, $161,000 federal. Long-term debt: $797,000.
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 $31.7 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.
145 bridges in Washington County: 30 in good condition, 96 fair, and 19 poor (13.1%). “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 1 TOWER HILL RD over RI 138 · built 1969 | 46,800 vehicles a day |
| RI 78 WEST BY-PASS over OLD HOPKINTON RD · built 1975 | 16,600 vehicles a day |
| RI 78 WEST BY-PASS over RI 91 BRDFRD RD & AMTRAK · built 1975 | 12,829 vehicles a day |
| US 1 BROAD STREET over PAWCATUCK RIVER · built 1932 | 12,200 vehicles a day |
| US 1A BSTN NCK RD over NARROW RIVER · built 1981 | 11,818 vehicles a day |
| DEVILS FOOT RD over AMTRAK · built 2007 | 5,252 vehicles a day |
Source: Federal Highway Administration, National Bridge Inventory (2025 submission). Includes state, county and city bridges.
Federal grants paid for $161.6 million of work in Washington County in fiscal 2025, about $1,245 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 Rhode Island 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 Rhode Island: the state government and every county in Rhode Island.
Nearby counties: Newport County (19 mi) · Kent County (19 mi) · Southeastern Connecticut Planning Region, CT (26 mi) · Bristol County (27 mi) · Providence County (33 mi) · Northeastern Connecticut Planning Region, CT (36 mi).