First three digits · Oklahoma
ZIP Codes Starting with
20 ZIP codes start with 738, sorted at the Oklahoma City, OK (SCF 730) sectional center (USPS labeling list L005, effective October 1, 2026) in Oklahoma: 19 residential ZIP codes across 7 counties and 1 PO Box or single-organization code (Census 2020 ZCTAs and GeoNames postal codes, October 2026).
What do the digits 738 mean?
The first digit, 7, is one of ten national areas (Arkansas, Louisiana, Oklahoma and Texas). The first three, 738, route mail to a sectional center: USPS labeling list L005 (effective October 1, 2026) sends letters for 738 to the Oklahoma City, OK (SCF 730) facility. The last two digits pick the delivery area. By residents, the largest town names among the 738 ZIP codes are Woodward, Mooreland, Vici, Laverne, Buffalo and Shattuck.
The same facility sorts 8 prefixes, 410 ZIP codes in all: 730, 731, 734, 735, 736, 737, 738, 748.
Where are the 738 ZIP codes?
Source: U.S. Census Bureau, 2020 ZCTA cartographic boundaries; ACS 2020-2024 5-year estimates (B19013).
All ZIP codes starting with 738
| County | ||||||
|---|---|---|---|---|---|---|
| 73801 | Woodward | Woodward County | 14,892 | 32 | $59k | $169k |
| 73802 | Woodward | Woodward County | PO Box or unique | – | – | – |
| 73832 | Arnett | Ellis County | 1,022 | 2 | $64k | $116k |
| 73834 | Buffalo | Harper County | 1,544 | 3 | $73k | $92k |
| 73835 | Camargo | Dewey County | 232 | 2 | $37k | $76k |
| 73838 | Chester | Major County | 528 | 3 | $96k | $162k |
| 73840 | Fargo | Ellis County | 509 | 4 | $72k | $131k |
| 73841 | Fort Supply | Ellis County | 827 | 20 | $77k | $159k |
| 73842 | Freedom | Woods County | 354 | 1 | – | $213k |
| 73843 | Gage | Ellis County | 754 | 2 | $45k | $133k |
| 73844 | Gate | Beaver County | 297 | 1 | – | $101k |
| 73848 | Laverne | Beaver County | 1,555 | 3 | $58k | $124k |
| 73851 | May | Ellis County | 111 | 1 | $61k | $57k |
| 73852 | Mooreland | Woodward County | 2,688 | 6 | $66k | $161k |
| 73853 | Mutual | Woodward County | 505 | 4 | $92k | $201k |
| 73855 | Rosston | Harper County | 253 | 2 | $63k | $186k |
| 73857 | Sharon | Woodward County | 918 | 13 | $65k | $302k |
| 73858 | Shattuck | Ellis County | 1,461 | 6 | $56k | $128k |
| 73859 | Vici | Dewey County | 1,582 | 10 | $70k | $136k |
| 73860 | Waynoka | Woods County | 1,207 | 4 | $63k | $93k |
Source: U.S. Census Bureau, ACS 2020-2024 5-year estimates; GeoNames postal codes (CC BY 4.0) for codes without a residential area.