108,697 people (2024 Census estimate, +2.6% since 2020)
360 square miles of land · 302 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.
6 active community water systems list Monongalia County in the area they serve, reporting 81,887 people served in all (a system that crosses county lines counts its whole population).
| MORGANTOWN UTILITY BOARD surface water · local government · WV3303111 | 66,851 served |
| CLINTON WATER ASSOC - ROUTE 119 buys surface water · local government · WV3303107 | 5,733 served |
| CLAY BATTELLE PSD buys surface water · local government · WV3303121 | 3,858 served |
| CLINTON WATER ASSOC - KINGWOOD PIKE buys surface water · local government · WV3303128 | 3,100 served |
| PLEASANT VALLEY PSD buys surface water · local government · WV3303112 | 2,231 served |
| PLEASANT VALLEY PSD - NORTH CASSVILLE buys surface water · private · WV3303130 | 114 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 268 people were held in Monongalia County's jail, in Vera's latest figure (2024), or 342 per 100,000 residents ages 15–64. In 2019 it was about 263.
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 Monongalia County. School taxes are usually the largest part of a property tax bill.
Spent $171.4 million — $163 million to run schools, about $14,430 per student, plus $3.8 million on buildings and equipment. Money in: $80.8 million local (mostly property tax), $73.6 million state, $26.1 million federal. Long-term debt: $27.9 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 Monongalia County about $36.3 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.
203 bridges in Monongalia County: 75 in good condition, 89 fair, and 39 poor (19.2%). “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.
| MON CO RT 19/25 over SCOTTS RUN · built 1930 | 600,500 vehicles a day |
| I 79 NB over Whiteday Crk & CR 73/01_ · built 1969 | 22,800 vehicles a day |
| US ROUTE 119 over I-68 EB & WB · built 1971 | 19,100 vehicles a day |
| INTERSTATE 79 NB over I-68 Eastbound On-Ramp · built 1970 | 18,950 vehicles a day |
| INTERSTATE 79 SB over I-68 Eastbound On-Ramp · built 1970 | 18,950 vehicles a day |
| INTERSTATE 79 NB over MON CO 79/4 · built 1967 | 18,400 vehicles a day |
Source: Federal Highway Administration, National Bridge Inventory (2025 submission). Includes state, county and city bridges.
Federal grants paid for $99.9 million of work in Monongalia County in fiscal 2025, about $944 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 Monongalia 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 Monongalia County built: brayden.ozark@gmail.com.
More of West Virginia: the state government and every county in West Virginia.
Nearby counties: Marion County (13 mi) · Greene County, PA (17 mi) · Taylor County (21 mi) · Preston County (24 mi) · Fayette County, PA (30 mi) · Harrison County (30 mi).