Harmon County, Oklahoma
Harmon County, Oklahoma, has 2,327 residents (July 2025 estimate). Its county seat is Hollis. It uses Central Time and covers 537 sq mi (1,391 km²) of land.
- Resident population, July 2025
- 2,327
- Land area
- 537 sq mi (1,391 km²)
- County seat or government
- Hollis
- Time zone
- Central TimeUTC-06:00 in January; UTC-05:00 in July
- Median household income
- $43,333 ± $5,353
- Median home value
- $79,700 ± $13,295
- Median rent, with utilities
- $694 ± $51
- Homes lived in by their owners
- 69.7% ± 3.8 points
- County type
- County
- Metro or micro area
- Outside any metro or micro areaNext to: Altus, OK micro area and Elk City, OK micro area
- Water area
- 1.47 sq mi (3.8 km²)
- State
- Oklahoma
- County code (FIPS)
- 40057
- Coordinates (central point)
- 34.745971, -99.844194
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 Harmon County
| Time zone | Local time and UTC offset | Next clock change |
|---|---|---|
| Central TimeAmerica/Chicago | UTC-06:00 in January; UTC-05:00 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
6 ZIP Code areas overlap Harmon 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
Harmon 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 Harmon County, largest first
- Mangum Public Schools3,268 people
- Hollis Public Schools2,392 people
- Erick Public Schools1,272 people
- Olustee-Eldorado Public Schools1,112 people
- Duke Public Schools512 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.
Tribal areas in Harmon County, largest first
American Indian, Alaska Native and Native Hawaiian areas as the Census Bureau maps them, with at least 2% of their area here, water included. These lines don’t decide membership, jurisdiction or land status.
Cities, towns and communities, largest first
These areas overlap the mapped boundary; an overlap does not mean that every address belongs to both.
- Hollis, Oklahoma (city)1,664 people
- Gould, Oklahoma (town)62 people
Bordering areas, nearest first
Distances are straight lines between map points.
- Greer County, Oklahoma21 mi northeast
- Childress County, Texas26 mi southwest
- Jackson County, Oklahoma27 mi southeast
- Collingsworth County, Texas29 mi northwest
- Hardeman County, Texas32 mi south
- Beckham County, Oklahoma37 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.
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