County ZIP codes · Oklahoma · FIPS 40011
Blaine County, OK ZIP Codes
Blaine County, Oklahoma has 14 ZIP codes (Census 2020 ZCTA-county file; GeoNames postal codes, October 2026), all residential. 8 of the residential ones lie mainly in Blaine County and 6 mainly in a neighboring county; 11 cross the county line. Median household income ranges from $58,000 in 73048 (Hydro) to $69,821 in 73669 (Thomas) (Census Bureau, ACS 2020-2024).
- ACS2020-24
- Census2020
Where are the ZIP codes of Blaine County?
Source: U.S. Census Bureau, 2020 ZCTA cartographic boundaries; ACS 2020-2024 5-year estimates (B19013).
How different are its ZIP codes?
The middle half of its ranked ZIP codes (1,000+ people living in households) report median household incomes between $58,591 and $61,328.
They carry 14 postal town names.
Source: U.S. Census Bureau, ACS 2020-2024 5-year estimates (B19013).
All 14 residential ZIP codes in Blaine County
8 ZIP codes lie mainly in Blaine County; 6 more reach into it from a neighboring county and follow the first table.
| In this county | ||||||
|---|---|---|---|---|---|---|
| 73772 | Watonga | 3,260 | 14 | $59k | $117k | 100% |
| 73763 | Okeene | 1,812 | 10 | $62k | $135k | 75% |
| 73040 | Geary | 1,349 | 6 | $61k | $117k | 69% |
| 73755 | Longdale | 707 | 9 | $79k | $125k | 57% |
| 73646 | Fay | 400 | 3 | $73k | $130k | 61% |
| 73744 | Hitchcock | 227 | 2 | $64k | $121k | 95% |
| 73043 | Greenfield | 142 | 9 | $81k | $90k | 100% |
| 73770 | Southard | 20 | 5 | – | – | 100% |
Partly in Blaine County
| In this county | ||||||
|---|---|---|---|---|---|---|
| 73724 | Canton | 804 | 6 | $71k | $103k | 42% |
| 73764 | Omega | 160 | 4 | – | $188k | 42% |
| 73048 | Hydro | 2,149 | 11 | $58k | $175k | 21% |
| 73669 | Thomas | 1,539 | 11 | $70k | $151k | 6% |
| 73658 | Oakwood | 232 | 3 | $51k | $102k | 5% |
| 73096 | Weatherford | 14,364 | 74 | $59k | $249k | 1% |
Source: U.S. Census Bureau, ACS 2020-2024 5-year estimates; county shares by land area (Census 2020 ZCTA-county relationship file).
Which ZIP codes cross the county line?
11 ZIP codes of Blaine County extend into another county. A ZIP code follows mail routes, not county borders.
| ZIP | In Blaine | Elsewhere |
|---|---|---|
| 73096 | 1% | Custer County70%; Washita County29% |
| 73048 | 21% | Caddo County72%; Custer County7% |
| 73763 | 75% | Kingfisher County13%; Major County12% |
| 73669 | 6% | Custer County76%; Dewey County18% |
| 73040 | 69% | Canadian County31% |
| 73724 | 42% | Dewey County58% |
| 73755 | 57% | Major County29%; Dewey County14% |
| 73646 | 61% | Dewey County29%; Custer County9% |
| 73658 | 5% | Dewey County95% |
| 73744 | 95% | Kingfisher County5% |
| 73764 | 42% | Kingfisher County58% |
Source: U.S. Census Bureau, 2020 ZCTA-county relationship file (shares of land area).
Which first three digits do Blaine County's ZIP codes use?
The first three digits of a ZIP code name the sectional center, the mail processing plant that sorts it. Blaine County's ZIP codes use 3 prefixes: 730, 736 and 737.
| Prefix | Sectional center | Here | All codes |
|---|---|---|---|
| 730 | Oklahoma City, OK (SCF 730) | 4 | 89 |
| 736 | Oklahoma City, OK (SCF 730) | 3 | 34 |
| 737 | Oklahoma City, OK (SCF 730) | 7 | 51 |
Source: U.S. Postal Service, labeling list L005 (3-digit ZIP Code prefix groups, SCF sortation), effective October 1, 2026.