Platte County, Wyoming

Platte County, Wyoming, has 8,634 residents (July 2025 estimate). Its county seat is Wheatland. It uses Mountain Time and covers 2,081 sq mi (5,391 km²) of land.

CheyenneCasperGillette
Platte County in Wyoming
Albany CountyGoshen CountyWheatlandGuernseyGlendoChugwater
Platte County and its neighbors (simplified outlines). Open in OpenStreetMap ↗
Resident population, July 2025
8,634
Land area
2,081 sq mi (5,391 km²)
County seat or government
Wheatland
Time zone
Mountain TimeUTC-07:00 in January; UTC-06:00 in July
Median household income
$67,718 ± $6,763
Median home value
$297,900 ± $33,437
Median rent, with utilities
$781 ± $362
Homes lived in by their owners
76.1% ± 3.7 points
County type
County
Metro or micro area
Outside any metro or micro areaNext to: Laramie, WY micro area and Cheyenne, WY metro area
Water area
29.4 sq mi (76.1 km²)
State
Wyoming
County code (FIPS)
56031
Coordinates (central point)
42.131593, -104.953963

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 Platte 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. 822016,245 people
  2. 82214932 people
  3. 82213786 people
  4. 82215487 people
  5. 82210275 people

5 ZIP Code areas overlap Platte 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

We don’t have a website for this county yet. The US government’s local-office directory ↗ lists its offices. A geographic lookup cannot determine eligibility, tax liability or a court obligation.

School districts in Platte County, largest first

  1. Goshen County School District 112,559 people
  2. Platte County School District 17,122 people
  3. Platte County School District 21,519 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. Wheatland, Wyoming (town)3,550 people
  2. Guernsey, Wyoming (town)754 people
  3. Glendo, Wyoming (town)243 people
  4. Chugwater, Wyoming (town)228 people
  5. Chugcreek, Wyoming (CDP)160 people
  6. Y-O Ranch, Wyoming (CDP)120 people
  7. Westview Circle, Wyoming (CDP)117 people
  8. Lakeview North, Wyoming (CDP)100 people
  9. Slater, Wyoming (CDP)99 people
  10. Hartville, Wyoming (town)88 people
  11. Whiting, Wyoming (CDP)58 people
  12. El Rancho, Wyoming (CDP)47 people

Bordering areas, nearest first

Distances are straight lines between map points.

  1. Goshen County, Wyoming31 mi east
  2. Albany County, Wyoming51 mi southwest
  3. Laramie County, Wyoming60 mi south
  4. Converse County, Wyoming66 mi northwest
  5. Niobrara County, Wyoming69 mi north

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.