Foster Oklahoma ZIP Codes
Foster holds a single ZIP code.
Every ZIP code in Foster
| ZIP code | County |
|---|---|
| 73434 | Stephens 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We do not publish a delivery type (standard, PO box, unique) or a neighbourhood for each ZIP.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 Foster codes above are listed without a column we would have to invent.
Scope every ZIP code recorded for Foster. 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 Foster ZIP code begins 734. Those first three digits identify the sectional center facility that processes mail for this part of Oklahoma. Statewide that range covers 35 ZIP codes, so Foster accounts for 3% of it.
Every Oklahoma ZIP prefix and the region it covers →
Area codes covering Foster
ZIP codes and area codes are separate systems — one routes mail, the other routes calls — and they do not share boundaries. The code below serves the same ground Foster occupies.
Foster Oklahoma area codes in full →
Where Foster's ZIP codes sit
- Reference points and footprint
- Not an official NANPA boundary
- Not a USPS delivery area
Cities near Foster
| City | Distance | ZIP codes |
|---|---|---|
| Elmore City Oklahoma ZIP codes | 5.7 mi | 1 ZIP code |
| Tatums Oklahoma ZIP codes | 9.0 mi | 1 ZIP code |
| Ratliff City Oklahoma ZIP codes | 11 mi | 1 ZIP code |
| Velma Oklahoma ZIP codes | 14 mi | 1 ZIP code |
| Pauls Valley Oklahoma ZIP codes | 17 mi | 1 ZIP code |
| Lindsay Oklahoma ZIP codes | 18 mi | 1 ZIP code |
| Wynnewood Oklahoma ZIP codes | 19 mi | 1 ZIP code |
| Maysville Oklahoma ZIP codes | 19 mi | 1 ZIP code |
Straight-line distance between place reference points, not driving distance.