Harmon County, Oklahoma
3 ZIP codes · 537.26 sq mi of land · FIPS 40057
| Population | 2,406 |
|---|---|
| State | Oklahoma |
| FIPS code | 40057 |
| Time zone | Central |
| Land area | 537.26 sq mi |
| Center (lat, long) | 34.7460, -99.8442 |
Area codes in this area
These are the area codes that most often serve Harmon County (including overlays). The exact area code depends on the phone number — landlines, mobiles and overlays can differ even on the same street.
Cities and towns (largest first)
GouldHollisVinson
ZIP codes in Harmon County
Population: U.S. Census Bureau, ACS 5-year estimates, 2024.