Cromwell Oklahoma ZIP Codes
Cromwell holds a single ZIP code.
Every ZIP code in Cromwell
| ZIP code | County |
|---|---|
| 74837 | Seminole County |
We do not publish a delivery type (standard, PO box, unique) or a neighbourhood for each ZIP. USPS delivery-type products are licensed, and no clean-rights source maps ZIP codes to neighbourhoods — so the Cromwell codes above are listed without a column we would have to invent.
Scope every ZIP code recorded for Cromwell. Source GeoNames US postal codes (2026-07 postal dump) and Census 2024 county Gazetteer (2024 Gazetteer). Updated . ZIP codes are delivery-route groupings, not areas; the boundaries implied by any ZIP map are approximations.
How these codes cluster
Every Cromwell ZIP code begins 748. Those first three digits identify the sectional center facility that processes mail for this part of Oklahoma. Statewide that range covers 50 ZIP codes, so Cromwell accounts for 2% of it.
Every Oklahoma ZIP prefix and the region it covers →
Area codes covering Cromwell
ZIP codes and area codes are separate systems — one routes mail, the other routes calls — and they do not share boundaries. The codes below serve the same ground Cromwell occupies.
Cromwell Oklahoma area codes in full →
Where Cromwell's ZIP codes sit
- Reference points and footprint
- Not an official NANPA boundary
- Not a USPS delivery area
Cities near Cromwell
| City | Distance | ZIP codes |
|---|---|---|
| Castle Oklahoma ZIP codes | 9.6 mi | 1 ZIP code |
| Boley Oklahoma ZIP codes | 10 mi | 1 ZIP code |
| Okemah Oklahoma ZIP codes | 11 mi | 1 ZIP code |
| Seminole Oklahoma ZIP codes | 13 mi | 2 ZIP codes |
| Paden Oklahoma ZIP codes | 13 mi | 1 ZIP code |
| Wewoka Oklahoma ZIP codes | 14 mi | 1 ZIP code |
| Wetumka Oklahoma ZIP codes | 14 mi | 1 ZIP code |
| Prague Oklahoma ZIP codes | 17 mi | 1 ZIP code |
Straight-line distance between place reference points, not driving distance.