61,264 people (2024 Census estimate, +6.0% since 2020)
209 square miles of land · 293 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.
13 active community water systems list Jefferson County in the area they serve, reporting 30,780 people served in all (a system that crosses county lines counts its whole population).
| CHARLES TOWN UTILITIES surface water · local government · WV3301905 | 15,220 served |
| WVAW - WALNUT GROVE UTILITIES groundwater (surface-influenced) · private · WV3301942 | 7,250 served |
| CORPORATION OF SHEPHERDSTOWN surface water · local government · WV3301933 | 4,300 served |
| CORPORATION OF HARPERS FERRY surface water · local government · WV3301912 | 2,122 served |
| WVAW - THE MOUNTAIN WATER SYSTEM groundwater · local government · WV3301963 | 976 served |
| CHARLES TOWN UTL-GLEN HAVEN UTILITIES groundwater · private · WV3301909 | 195 served |
| OAK HILL MOBILE HOME COMMUNITY LLC groundwater · private · WV3301949 | 172 served |
| WVAW - DEERFIELD VILLAGE SUBDIVISION groundwater (surface-influenced) · local government · WV3301979 | 132 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 131 people were held in Jefferson County's jail, in Vera's latest figure (2024), or 334 per 100,000 residents ages 15–64. In 2019 it was about 142.
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.
1 school district has its office in Jefferson County. School taxes are usually the largest part of a property tax bill.
Spent $130.7 million — $121.1 million to run schools, about $14,430 per student, plus $5.5 million on buildings and equipment. Money in: $70.7 million local (mostly property tax), $56.9 million state, $14.1 million federal. Long-term debt: $41.5 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 Jefferson County about $18.7 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.
46 bridges in Jefferson County: 11 in good condition, 35 fair, and 0 poor (0.0%). “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.
Source: Federal Highway Administration, National Bridge Inventory (2025 submission). Includes state, county and city bridges.
Federal grants paid for $5.9 million of work in Jefferson County in fiscal 2025, about $103 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 West Virginia 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 Jefferson 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 Jefferson County built: brayden.ozark@gmail.com.
More of West Virginia: the state government and every county in West Virginia.
Nearby counties: Berkeley County (13 mi) · Clarke County, VA (15 mi) · Winchester city, VA (19 mi) · Loudoun County, VA (20 mi) · Washington County, MD (21 mi) · Frederick County, VA (23 mi).