23,272 people (2024 Census estimate, −0.5% since 2020)
3,997 square miles of land · 6 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.
37 active community water systems list Teton County in the area they serve, reporting 53,195 people served in all (a system that crosses county lines counts its whole population).
| JACKSON, TOWN OF groundwater · local government · WY5600213 | 24,760 served |
| YNP-OLD FAITHFUL surface water · federal · WY5680085 | 7,745 served |
| YNP - LAKE VILLAGE groundwater (surface-influenced) · federal · WY5680079 | 5,925 served |
| GTNP-COLTER BAY VILLAGE groundwater · federal · WY5680095 | 4,514 served |
| GTNP-JACKSON LAKE LODGE groundwater · federal · WY5680103 | 1,830 served |
| RAFTER J SUBDIVISION HOA groundwater · private · WY5600822 | 1,500 served |
| ASPENS PINES W&S DISTRICT groundwater · local government · WY5600220 | 1,400 served |
| TETON VILLAGE WATER & SEWER DISTRICT groundwater · local government · WY5600218 | 906 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 14 people were held in Teton County's jail, in Vera's latest figure (2024), or 89 per 100,000 residents ages 15–64. In 2019 it was about 19.
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 Teton County. School taxes are usually the largest part of a property tax bill.
Spent $75.4 million — $68.2 million to run schools, about $24,386 per student, plus $7 million on buildings and equipment. Money in: $54.2 million local (mostly property tax), $11.8 million state, $4.2 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 Teton County about $40.3 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.
122 bridges in Teton County: 39 in good condition, 68 fair, and 15 poor (12.3%). “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.
| US 89 over Flat Creek · built 1938 | 15,780 vehicles a day |
| WYO 22 over Fish Creek · built 1949 | 10,222 vehicles a day |
| WEST ENTRANCE ROAD over MADISON RIVER · built 1958 | 2,525 vehicles a day |
| US 191 over Hoback River · built 1966 | 2,509 vehicles a day |
| GRAND LOOP ROAD over BRIDGE BAY INLET · built 1961 | 1,807 vehicles a day |
| GRAND LOOP ROAD over OTTER CREEK · built 1934 | 1,807 vehicles a day |
Source: Federal Highway Administration, National Bridge Inventory (2025 submission). Includes state, county and city bridges.
Federal grants paid for $81.5 million of work in Teton County in fiscal 2025, about $3,494 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 Wyoming 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 Teton 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 Teton County built: brayden.ozark@gmail.com.
More of Wyoming: the state government and every county in Wyoming.
Nearby counties: Teton County, ID (44 mi) · Park County (51 mi) · Fremont County, ID (54 mi) · Madison County, ID (64 mi) · Bonneville County, ID (74 mi) · Sublette County (92 mi).