5,195 people (2024 Census estimate, +13.7% since 2020)
1,220 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.
10 active community water systems list Mineral County in the area they serve, reporting 2,266 people served in all (a system that crosses county lines counts its whole population).
| SUPERIOR TOWN OF groundwater · local government · MT0000339 | 1,100 served |
| ALBERTON TOWN OF groundwater · local government · MT0000015 | 495 served |
| SHYROCK MOTORCOACH COMMUNITY groundwater · private · MT0004944 | 150 served |
| WEST MOUNTAIN ESTATES groundwater · private · MT0004450 | 125 served |
| TRESTLE CREEK I AND II groundwater · private · MT0004423 | 110 served |
| HIGH COUNTRY MHP LLC groundwater · private · MT0001850 | 76 served |
| DEER LICK SUBDIVISION WATER DISTRICT groundwater · private · MT0004583 | 70 served |
| WHISPERING PINES TR CT groundwater · private · MT0001851 | 55 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 1 people were held in Mineral County's jail, in Vera's latest figure (2018), or 41 per 100,000 residents ages 15–64. In 2013 it was about 16.
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 Mineral County. School taxes are usually the largest part of a property tax bill.
Spent $5.3 million — $4.9 million to run schools, about $14,978 per student, plus $230,000 on buildings and equipment. Money in: $2.2 million local (mostly property tax), $2.4 million state, $1 million federal. Long-term debt: $2.9 million.
Spent $5.1 million — $3.8 million to run schools, about $21,374 per student, plus $1.3 million on buildings and equipment. Money in: $1.5 million local (mostly property tax), $1.5 million state, $1.7 million federal. Long-term debt: $459,000.
Spent $3 million — $2.9 million to run schools, about $17,331 per student, plus $90,000 on buildings and equipment. Money in: $1.2 million local (mostly property tax), $1.3 million state, $595,000 federal. Long-term debt: $26,000.
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: Very Low compared with other U.S. counties. FEMA estimates natural hazards cost Mineral County about $3.2 million a year on average in buildings, crops and lives. Ability to bounce back (community resilience): Very Low; social vulnerability: Relatively Moderate.
Source: FEMA National Risk Index (December 2025), expected annual loss. Ratings compare counties nationwide; they're estimates, not predictions.
153 bridges in Mineral County: 37 in good condition, 99 fair, and 17 poor (11.1%). “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.
| I 90 over SEP ELIZABETH LN · built 1965 | 4,088 vehicles a day |
| I 90 over CLARK FORK RIVER · built 1965 | 4,088 vehicles a day |
| I 90 over CLARK FORK RIVER · built 1984 | 3,719 vehicles a day |
| OLD HWY 10 W over CLARK FORK 054 · built 1932 | 356 vehicles a day |
| S FRONTAGE RD W over CLARK FORK 053 · built 1916 | 174 vehicles a day |
| OLD HWY 10 E over ST REGIS RIVER 059 · built 1937 | 140 vehicles a day |
Source: Federal Highway Administration, National Bridge Inventory (2025 submission). Includes state, county and city bridges.
Federal grants paid for $47.4 million of work in Mineral County in fiscal 2025, about $10,450 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 Montana 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 Mineral 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 Mineral County built: brayden.ozark@gmail.com.
More of Montana: the state government and every county in Montana.
Nearby counties: Shoshone County, ID (40 mi) · Clearwater County, ID (41 mi) · Sanders County (43 mi) · Missoula County (56 mi) · Lake County (59 mi) · Benewah County, ID (73 mi).