101,238 people (2024 Census estimate, +4.2% since 2020)
1,242 square miles of land · 82 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.
31 active community water systems list Franklin County in the area they serve, reporting 126,029 people served in all (a system that crosses county lines counts its whole population).
| PASCO WATER DEPARTMENT surface water · local government · WA5366400 | 115,102 served |
| CONNELL CITY OF groundwater · local government · WA5314600 | 5,150 served |
| Basin City Water Sewer District groundwater · local government · WA5304461 | 1,740 served |
| MESA WATER DEPARTMENT groundwater · local government · WA5354100 | 495 served |
| WHITE BLUFF WATER ASSOCIATION groundwater · private · WA5396100 | 386 served |
| RINGOLD DOMESTIC WATER CORP groundwater · private · WA5372500 | 340 served |
| WEST MESA DOMESTIC WATER ASSN groundwater · private · WA5394830 | 316 served |
| KAHLOTUS CITY OF groundwater · local government · WA5337400 | 262 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 115 people were held in Franklin County's jail, in Vera's latest figure (2021), or 184 per 100,000 residents ages 15–64. In 2016 it was about 189.
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 Franklin County. School taxes are usually the largest part of a property tax bill.
Spent $343.5 million — $317.6 million to run schools, about $17,151 per student, plus $25.5 million on buildings and equipment. Money in: $48.4 million local (mostly property tax), $255.7 million state, $45.9 million federal. Long-term debt: $186.7 million.
Spent $72.3 million — $59.8 million to run schools, about $15,615 per student, plus $9.4 million on buildings and equipment. Money in: $10.9 million local (mostly property tax), $52 million state, $7 million federal. Long-term debt: $60.9 million.
Spent $38.4 million — $36.2 million to run schools, about $17,771 per student, plus $1.3 million on buildings and equipment. Money in: $4 million local (mostly property tax), $28 million state, $6.9 million federal. Long-term debt: $9.6 million.
Spent $2.8 million — $2.5 million to run schools, about $45,018 per student, plus $139,000 on buildings and equipment. Money in: $350,000 local (mostly property tax), $2.3 million state, $114,000 federal.
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 Franklin County about $32.5 million a year on average in buildings, crops and lives. Ability to bounce back (community resilience): Very Low; social vulnerability: Relatively Low.
Source: FEMA National Risk Index (December 2025), expected annual loss. Ratings compare counties nationwide; they're estimates, not predictions.
133 bridges in Franklin County: 74 in good condition, 55 fair, and 4 poor (3.0%). “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.
| CLARK STREET over ESQUATZEL COULEE · built 1963 | 735 vehicles a day |
| SR 260 over DRY WASH · built 1967 | 664 vehicles a day |
| COUNTY ROAD over POTHOLES EAST CANAL · built 1954 | 204 vehicles a day |
| COUNTY ROAD over POTHOLES EAST CANAL · built 1955 | 60 vehicles a day |
Source: Federal Highway Administration, National Bridge Inventory (2025 submission). Includes state, county and city bridges.
Federal grants paid for $29.5 million of work in Franklin County in fiscal 2025, about $305 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 Washington 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 Franklin 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 Franklin County built: brayden.ozark@gmail.com.
More of Washington: the state government and every county in Washington.
Nearby counties: Walla Walla County (28 mi) · Benton County (36 mi) · Adams County (38 mi) · Columbia County (50 mi) · Grant County (54 mi) · Garfield County (65 mi).