ZIP Code 73742 – Hennessey, OK
Hennessey, Oklahoma · Kingfisher County · Central time
| ZIP code | 73742 |
|---|---|
| City | Hennessey |
| State | Oklahoma |
| County | Kingfisher County |
| Population | 3,906 |
| Time zone | Central · local time |
| ZIP type | Standard (has a Census ZCTA area) |
| Land area | 218.34 sq mi |
| Center (lat, long) | 36.0963, -97.9220 |
Area codes in this area
These are the area codes that most often serve ZIP 73742 (including overlays). The exact area code depends on the phone number — landlines, mobiles and overlays can differ even on the same street.
Map
Nearby ZIP codes
About ZIP 73742
ZIP code 73742 is assigned to Hennessey, Oklahoma. It lies in Kingfisher County. Its Census area covers about 218.34 square miles of land. The closest neighboring ZIP is 73720 (Bison), about 7.4 miles away.
Every address in 73742 also has a 4-digit add-on code (ZIP+4) that points to a smaller delivery area. Use the box above to find it.
Sources: US Census Bureau (ZCTA, county relationship files), GeoNames (CC BY 4.0), NANPA via NumberResearch.org (CC BY 4.0). Map © OpenStreetMap contributors. ZIP areas are approximate. Population: U.S. Census Bureau, ACS 5-year estimates, 2024 (ZCTA). Data sources