Big Horn County, Wyoming

Big Horn County, Wyoming, has 12,024 residents (July 2025 estimate). Its county seat is Basin. It uses Mountain Time and covers 3,137 sq mi (8,125 km²) of land.

CheyenneCasperGillette
Big Horn County in Wyoming
Sheridan CountyLovellGreybullBasinCowleyByron
Big Horn County and its neighbors (simplified outlines). Open in OpenStreetMap ↗
Resident population, July 2025
12,024
Land area
3,137 sq mi (8,125 km²)
County seat or government
Basin
Time zone
Mountain TimeUTC-07:00 in January; UTC-06:00 in July
Median household income
$62,101 ± $3,769
Median home value
$216,500 ± $19,899
Median rent, with utilities
$823 ± $114
Homes lived in by their owners
75.9% ± 2.6 points
County type
County
Metro or micro area
Outside any metro or micro areaNext to: Cody, WY micro area, Sheridan, WY micro area, and Billings, MT metro area
Water area
21.3 sq mi (55.2 km²)
State
Wyoming
County code (FIPS)
56003
Coordinates (central point)
44.525117, -107.994848

These coordinates mark a central point for the area, not a street address. Income, home value, rent and homes lived in by their owners: U.S. Census Bureau, American Community Survey 2020–2024 5-year estimates, ± margin at 90% confidence; checked on October 13, 2026.

Time zones in Big Horn County

Time zoneLocal time and UTC offsetNext clock change
Mountain TimeAmerica/DenverUTC-07:00 in January; UTC-06:00 in July. Enable JavaScript for the live clock.Enable JavaScript for upcoming changes.

Near a time-zone line, check where you are with the time-zone finder. Your phone’s setting can differ.

ZIP Code areas, largest first

  1. 8243512,337 people
  2. 824017,067 people
  3. 824313,224 people
  4. 824262,941 people
  5. 824101,938 people
  6. 82420822 people
  7. 82412704 people
  8. 82411520 people
  9. 82421379 people
  10. 82432307 people
  11. 82441265 people
  12. 82423209 people
All 15
  1. 82428158 people
  2. 82434122 people
  3. 8242262 people

15 ZIP Code areas overlap Big Horn County. People counts are 2020–2024 estimates for each whole ZIP area. Mailing ZIPs can differ; check an address with USPS ZIP Code Lookup.

Official county information

Big Horn County government website ↗ is the next stop for county offices, tax, voting, jury and records information. A geographic lookup cannot determine eligibility, tax liability or a court obligation.

School districts in Big Horn County, largest first

  1. Big Horn County School District 13,300 people
  2. Big Horn County School District 33,255 people
  3. Big Horn County School District 22,926 people
  4. Big Horn County School District 42,434 people

Districts with land in the county; a district can cross county lines. People counts are American Community Survey 2020–2024 5-year estimates. A district boundary doesn’t decide which school a student attends.

Cities, towns and communities, largest first

These areas overlap the mapped boundary; an overlap does not mean that every address belongs to both.

  1. Lovell, Wyoming (town)2,422 people
  2. Greybull, Wyoming (town)2,091 people
  3. Basin, Wyoming (town)1,290 people
  4. Cowley, Wyoming (town)755 people
  5. Byron, Wyoming (town)595 people
  6. Burlington, Wyoming (town)242 people
  7. Frannie, Wyoming (town)209 people
  8. Deaver, Wyoming (town)171 people
  9. Manderson, Wyoming (town)113 people
  10. Hyattville, Wyoming (CDP)47 people
  11. Shell, Wyoming (CDP)36 people

Bordering areas, nearest first

Distances are straight lines between map points.

  1. Washakie County, Wyoming47 mi south
  2. Sheridan County, Wyoming58 mi east
  3. Big Horn County, Montana65 mi north
  4. Carbon County, Montana70 mi northwest
  5. Johnson County, Wyoming77 mi southeast
  6. Park County, Wyoming79 mi west

Before using this answer on a form

Use a precise point for address-level questions. A device accuracy circle can cross a boundary; confirm tax, voting or jury details with the responsible office.

Find the county where you are now, check its ZIP area, or check the time zone where you are.

See this county on Census.gov ↗

Areas that only touch the edge

These areas meet the boundary only along a sliver. Most addresses here are not in them; for an address near the line, check with the county.