Duncan, OK ZIP Codes, Coordinates & Counties
Duncan, Oklahoma has 1 ZIP code in Stephens county. The approximate center of Duncan is 34.498, -97.854. Duncan has about 288,595 known street addresses.
ZIP codes in Duncan, OK
| ZIP Code | County | Latitude | Longitude |
|---|---|---|---|
| 73533 | Stephens | 34.498 | -97.854 |
Counties Duncan spans
Stephens
Most common streets in Duncan
5th, 13th, 2nd, 7th, Seminole, 9th, 42nd, 10th, Elk, 8th
Frequently asked questions
What ZIP codes are in Duncan, OK?
Duncan, Oklahoma has 1 ZIP code, ranging from 73533 to 73533. The full list, with each ZIP's county and coordinates, is in the table on this page.
What county is Duncan, OK in?
Duncan is in Stephens county.
What are the latitude and longitude of Duncan, OK?
The approximate center of Duncan, Oklahoma is latitude 34.498, longitude -97.854. Coordinates for each ZIP code are listed in the table above.
How many ZIP codes does Duncan, OK have?
Duncan has 1 ZIP code.
How many addresses are in Duncan, OK?
Duncan, Oklahoma has about 288,595 known street addresses in the sthan.io US address database.
What are the most common streets in Duncan, OK?
Some of the most common street names in Duncan are 5th, 13th, 2nd, 7th, Seminole, 9th.
What cities are near Duncan, OK?
Cities near Duncan include Comanche (11 mi), Marlow (11 mi), Velma (12 mi), Loco (16 mi), Countyline (17 mi).
Cities near Duncan
Comanche, OK (11 mi) Marlow, OK (11 mi) Velma, OK (12 mi) Loco, OK (16 mi) Countyline, OK (17 mi) Addington, OK (18 mi) Foster, OK (18 mi) Ratliff City, OK (19 mi)
Need this for any US address, in code?
Get the ZIP code, county, and coordinates for any US address through the sthan.io API. Free 100 requests/month, no credit card required.
View the API →Last updated: June 2026 · Data: sthan.io US address database