12,991 people (2024 Census estimate, −1.8% since 2020)
3,049 square miles of land · 4 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.
18 active community water systems list Mono County in the area they serve, reporting 12,139 people served in all (a system that crosses county lines counts its whole population).
| MAMMOTH CWD surface water · local government · CA2610001 | 8,234 served |
| MOUNTAIN MEADOWS MWC groundwater · private · CA2600620 | 525 served |
| USMC - HOUSING COLEVILLE groundwater · federal · CA2610701 | 424 served |
| BRIDGEPORT PUD groundwater · local government · CA2610003 | 374 served |
| LOWER ROCK CREEK MUTUAL WATER CO. groundwater · local government · CA2600538 | 310 served |
| JUNE LAKE PUD - DOWN CANYON surface water · local government · CA2610004 | 310 served |
| USMC/MTN WARFARE TRNG CTR - BRIDGEPORT groundwater · federal · CA2610700 | 300 served |
| JUNE LAKE PUD VILLAGE surface water · local government · CA2610002 | 263 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 19 people were held in Mono County's jail, in Vera's latest figure (2025). In 2020 it was about 24.
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.
3 school districts have their office in Mono County. School taxes are usually the largest part of a property tax bill.
Spent $38.3 million — $18.9 million to run schools, about $16,921 per student, plus $16 million on buildings and equipment. Money in: $23.5 million local (mostly property tax), $5.4 million state, $1.4 million federal. Long-term debt: $65.2 million.
Spent $13.9 million — $12.7 million to run schools, about $32,234 per student, plus $606,000 on buildings and equipment. Money in: $11.2 million local (mostly property tax), $2.9 million state, $1.5 million federal.
Spent $14.5 million — $9.3 million to run schools, about $46,330 per student, plus $94,000 on buildings and equipment. Money in: $5.5 million local (mostly property tax), $10.2 million state, $2.2 million 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 Mono County about $16.7 million a year on average in buildings, crops and lives. Ability to bounce back (community resilience): Relatively High; social vulnerability: Relatively Low.
Source: FEMA National Risk Index (December 2025), expected annual loss. Ratings compare counties nationwide; they're estimates, not predictions.
56 bridges in Mono County: 35 in good condition, 18 fair, and 3 poor (5.4%). “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.
| CUNNINGHAM LANE over WEST WALKER RIVER · built 1951 | 82 vehicles a day |
| 32017 over BUCKEYE CREEK · built 1960 | 50 vehicles a day |
| FOREST ROAD 62 over WOLF CREEK · built 1979 | 20 vehicles a day |
Source: Federal Highway Administration, National Bridge Inventory (2025 submission). Includes state, county and city bridges.
Federal grants paid for $17.4 million of work in Mono County in fiscal 2025, about $1,320 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.
General election: Tuesday, November 3, 2026. Ballots mailed; drop boxes open: 2026-10-05. Last day to register to vote: 2026-10-19. Early in-person voting: 2026-10-24 to 2026-11-03. Election Day: 2026-11-03. Last day for mailed ballots to arrive: 2026-11-10.
Source: California Secretary of State — Nov. 3, 2026 key dates · California Official Voter Information Guide — dates to remember · California Secretary of State — make a plan to vote
The budget, property tax rates, audits, local officials and offices for Mono 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 Mono County built: brayden.ozark@gmail.com.
More of California: the state government and every county in California.
Nearby counties: Mineral County, NV (48 mi) · Tuolumne County (60 mi) · Mariposa County (61 mi) · Madera County (68 mi) · Esmeralda County, NV (68 mi) · Alpine County (70 mi).