City · Oklahoma · United States

Duncan, OK — ZIP codes

3 ZIP codes · Stephens County

City: Duncan
County: Stephens
State: Oklahoma
Country: United States
Postal codes: 735337353473536
Single source
Coordinates: 34.5073, -97.9403 View on OpenStreetMap

ZIP codes (3)

Postal code	Place name	Verification
73533	Duncan	Single source
73534	Duncan	Single source
73536	Duncan	Single source

Sources and verification

US ZIP codes have five digits. They are postal routing areas, not administrative boundaries: a ZIP can span more than one city or county, and the city shown is the primary USPS name for that code.

GeoNames. Last generated : 2026-08-21. Report an error.