8,965 people (2024 Census estimate, +2.6% since 2020)
4,886 square miles of land · 2 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.
5 active community water systems list Sublette County in the area they serve, reporting 3,986 people served in all (a system that crosses county lines counts its whole population).
| PINEDALE MUNICIPAL WS surface water · local government · WY5600041 | 2,005 served |
| MARBLETON, TOWN OF groundwater · local government · WY5600223 | 861 served |
| HIGH MEADOW RANCH groundwater · private · WY5601569 | 622 served |
| BIG PINEY, TOWN OF groundwater · local government · WY5600007 | 445 served |
| MOUNTAIN VILLAGE PARKS groundwater · private · WY5600221 | 53 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 15 people were held in Sublette County's jail, in Vera's latest figure (2024), or 284 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.
2 school districts have their office in Sublette County. School taxes are usually the largest part of a property tax bill.
Spent $24.4 million — $21.6 million to run schools, about $19,794 per student, plus $1.4 million on buildings and equipment. Money in: $53.4 million local (mostly property tax), $3.9 million state, $1.7 million federal.
Spent $11.8 million — $10.4 million to run schools, about $23,692 per student, plus $667,000 on buildings and equipment. Money in: $12.3 million local (mostly property tax), $2 million state, $1.3 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: Very Low compared with other U.S. counties. FEMA estimates natural hazards cost Sublette County about $8.1 million a year on average in buildings, crops and lives. Ability to bounce back (community resilience): Very Low; social vulnerability: Relatively Low.
Source: FEMA National Risk Index (December 2025), expected annual loss. Ratings compare counties nationwide; they're estimates, not predictions.
110 bridges in Sublette County: 40 in good condition, 59 fair, and 11 poor (10.0%). “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 191 over Hoback River · built 1965 | 2,509 vehicles a day |
| US 189 over Prairie Creek · built 1981 | 1,434 vehicles a day |
| Sb Cnty Rd 123 over New Fork River · built 1995 | 869 vehicles a day |
| Sb Cnty Rd 136 over New Fork River · built 1989 | 269 vehicles a day |
| FOREST ROAD 30530 over CLIFF CREEK · built 1974 | 150 vehicles a day |
| Sb Cnty Rd 141 over Piney Creek · built 1986 | 131 vehicles a day |
Source: Federal Highway Administration, National Bridge Inventory (2025 submission). Includes state, county and city bridges.
Federal grants paid for $6.8 million of work in Sublette County in fiscal 2025, about $775 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 Sublette 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 Sublette County built: brayden.ozark@gmail.com.
More of Wyoming: the state government and every county in Wyoming.
Nearby counties: Lincoln County (54 mi) · Fremont County (69 mi) · Bear Lake County, ID (79 mi) · Caribou County, ID (82 mi) · Teton County (92 mi) · Sweetwater County (93 mi).