Delaware Oklahoma ZIP Codes
Delaware holds a single ZIP code.
Every ZIP code in Delaware
| ZIP code | County |
|---|---|
| 74027 | Nowata 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We do not publish a delivery type (standard, PO box, unique) or a neighbourhood for each ZIP.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 Delaware codes above are listed without a column we would have to invent.
Scope every ZIP code recorded for Delaware. 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 Delaware ZIP code begins 740. Those first three digits identify the sectional center facility that processes mail for this part of Oklahoma. Statewide that range covers 75 ZIP codes, so Delaware accounts for 1% of it.
Every Oklahoma ZIP prefix and the region it covers →
Area codes covering Delaware
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 Delaware occupies.
Delaware Oklahoma area codes in full →
Where Delaware's ZIP codes sit
- Reference points and footprint
- Not an official NANPA boundary
- Not a USPS delivery area
Cities near Delaware
| City | Distance | ZIP codes |
|---|---|---|
| Lenapah Oklahoma ZIP codes | 5.0 mi | 1 ZIP code |
| Nowata Oklahoma ZIP codes | 5.5 mi | 1 ZIP code |
| Wann Oklahoma ZIP codes | 13 mi | 1 ZIP code |
| Dewey Oklahoma ZIP codes | 16 mi | 1 ZIP code |
| Bartlesville Oklahoma ZIP codes | 17 mi | 4 ZIP codes |
| Talala Oklahoma ZIP codes | 18 mi | 1 ZIP code |
| Copan Oklahoma ZIP codes | 18 mi | 1 ZIP code |
| Chelsea Oklahoma ZIP codes | 21 mi | 1 ZIP code |
Straight-line distance between place reference points, not driving distance.