County · Oklahoma · United States
Harper County ZIP codes
4 ZIP codes · 4 cities · FIPS 40059
Key facts
- State
- Oklahoma (OK)
- FIPS code
- 40059
- Population
- 3,231
- Median household income
- $59,191
- Median age
- 41.3
- Land area
- 1,038.6 sq mi (2,689.9 km²)
- Population density
- 3 / sq mi
- Area codes
- 580
Cities and ZIP codes in Harper County (4)
About this page
County figures are Census county-level values (ACS 5-year); the ZIP list shows the ZIPs whose primary county this is — a ZIP on a border can also serve neighbouring counties.
Sources: U.S. Census Bureau (2020 county relationship file, ACS 5-year) · GeoNames. Methodology.