14,399 people (2024 Census estimate, +7.3% since 2020)
1,864 square miles of land · 8 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.
11 active community water systems list Fremont County in the area they serve, reporting 7,250 people served in all (a system that crosses county lines counts its whole population).
| ST ANTHONY groundwater · local government · ID7220067 | 3,606 served |
| ASHTON CITY OF groundwater · local government · ID7220004 | 1,129 served |
| TETON CITY OF groundwater · local government · ID7220072 | 735 served |
| NEWDALE CITY OF groundwater · local government · ID7220047 | 340 served |
| PARKER CITY OF groundwater · local government · ID7220051 | 322 served |
| SHOTGUN NORTH groundwater · private · ID7220065 | 285 served |
| IDJC JUVENILE CORRECTIONS CENTER groundwater · state · ID7220087 | 280 served |
| SHOTGUN CHEROKEE SUBD 5 groundwater · private · ID7220063 | 245 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 24 people were held in Fremont County's jail, in Vera's latest figure (2019), or 286 per 100,000 residents ages 15–64. In 2014 it was about 13.
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 Fremont County. School taxes are usually the largest part of a property tax bill.
Spent $23.4 million — $23.3 million to run schools, about $10,494 per student, plus $19,000 on buildings and equipment. Money in: $6.5 million local (mostly property tax), $16.8 million state, $5.6 million federal. Long-term debt: $3.6 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: Very Low compared with other U.S. counties. FEMA estimates natural hazards cost Fremont County about $16.1 million a year on average in buildings, crops and lives. Ability to bounce back (community resilience): Very Low; social vulnerability: Very Low.
Source: FEMA National Risk Index (December 2025), expected annual loss. Ratings compare counties nationwide; they're estimates, not predictions.
138 bridges in Fremont County: 45 in good condition, 85 fair, and 8 poor (5.8%). “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.
| STC 6774;TETON HWY over S.FK.TETON RIVER · built 1977 | 1,100 vehicles a day |
| N 1600 E over ST ANTHONY CANAL · built 1971 | 70 vehicles a day |
| 1300 N over HENRYS FK.SNAKE R;FRITZ · built 1967 | 50 vehicles a day |
| FUN FARM ROAD over HENRYS FK SNAKE RIVER · built 1925 | 30 vehicles a day |
| N 2700 E over CROSSCUT CANAL · built 1937 | 10 vehicles a day |
| N 4075 E over MARYSVILLE CANAL · built 1976 | 10 vehicles a day |
Source: Federal Highway Administration, National Bridge Inventory (2025 submission). Includes state, county and city bridges.
Federal grants paid for $15.3 million of work in Fremont County in fiscal 2025, about $1,145 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 Idaho 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 Fremont 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 Fremont County built: brayden.ozark@gmail.com.
More of Idaho: the state government and every county in Idaho.
Nearby counties: Madison County (31 mi) · Teton County (34 mi) · Clark County (43 mi) · Jefferson County (50 mi) · Teton County, WY (54 mi) · Bonneville County (57 mi).