County ZIP codes · Oklahoma · FIPS 40111
Okmulgee County, OK ZIP Codes
Okmulgee County, Oklahoma has 11 ZIP codes (Census 2020 ZCTA-county file; GeoNames postal codes, October 2026), all residential. 8 of the residential ones lie mainly in Okmulgee County and 3 mainly in a neighboring county; 7 cross the county line. Median household income ranges from $46,984 in 74437 (Henryetta) to $72,292 in 74047 (Mounds) (Census Bureau, ACS 2020-2024).
- ACS2020-24
- Census2020
Where are the ZIP codes of Okmulgee 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 $48,432 and $67,875.
They carry 11 postal town names.
Source: U.S. Census Bureau, ACS 2020-2024 5-year estimates (B19013).
All 11 residential ZIP codes in Okmulgee County
8 ZIP codes lie mainly in Okmulgee County; 3 more reach into it from a neighboring county and follow the first table.
| In this county | ||||||
|---|---|---|---|---|---|---|
| 74447 | Okmulgee | 15,786 | 68 | $48k | $114k | 100% |
| 74437 | Henryetta | 8,937 | 47 | $47k | $94k | 68% |
| 74047 | Mounds | 7,227 | 73 | $72k | $210k | 56% |
| 74421 | Beggs | 4,360 | 33 | $70k | $165k | 99% |
| 74445 | Morris | 3,051 | 37 | $68k | $190k | 98% |
| 74431 | Dewar | 895 | 204 | $65k | $93k | 100% |
| 74460 | Schulter | 377 | 179 | $93k | – | 100% |
| 74456 | Preston | 78 | 315 | $95k | $87k | 100% |
Partly in Okmulgee County
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?
7 ZIP codes of Okmulgee County extend into another county. A ZIP code follows mail routes, not county borders.
| ZIP | In Okmulgee | Elsewhere |
|---|---|---|
| 74437 | 68% | McIntosh County 26%; Okfuskee County 7% |
| 74047 | 56% | Tulsa County 25%; Creek County 20% |
| 74436 | 15% | Muskogee County 64%; Wagoner County 21% |
| 74421 | 99% | Creek County 1% |
| 74445 | 98% | McIntosh County 2% |
| 74880 | 9% | Okfuskee County 91% |
| 74422 | 43% | Muskogee County 57% |
Source: U.S. Census Bureau, 2020 ZCTA-county relationship file (shares of land area).
Which first three digits do Okmulgee County's ZIP codes use?
The first three digits of a ZIP code name the sectional center, the mail processing plant that sorts it. Okmulgee County's ZIP codes use 3 prefixes: 740, 744 and 748.
| Prefix | Sectional center | Here | All codes |
|---|---|---|---|
| 740 | Tulsa, OK (SCF 740) | 1 | 75 |
| 744 | Tulsa, OK (SCF 740) | 9 | 49 |
| 748 | Oklahoma City, OK (SCF 730) | 1 | 50 |
Source: U.S. Postal Service, labeling list L005 (3-digit ZIP Code prefix groups, SCF sortation), effective October 1, 2026.