County ZIP codes · Kansas · FIPS 20109
Logan County, KS ZIP Codes
Logan County, Kansas has 7 ZIP codes (Census 2020 ZCTA-county file; GeoNames postal codes, October 2026), all residential. 3 of the residential ones lie mainly in Logan County and 4 mainly in a neighboring county; 7 cross the county line. Median household income ranges from $68,339 in 67871 (Scott City) to $78,920 in 67861 (Leoti) (Census Bureau, ACS 2020-2024).
- ACS2020-24
- Census2020
Where are the ZIP codes of Logan County?
Source: U.S. Census Bureau, 2020 ZCTA cartographic boundaries; ACS 2020-2024 5-year estimates (B19013).
How different are its ZIP codes?
They carry 7 postal town names: Scott City, Oakley, Leoti, Brewster, Winona, Wallace, Monument.
Source: U.S. Census Bureau, ACS 2020-2024 5-year estimates (B19013).
All 7 residential ZIP codes in Logan County
3 ZIP codes lie mainly in Logan County; 4 more reach into it from a neighboring county and follow the first table.
| In this county | ||||||
|---|---|---|---|---|---|---|
| 67748 | Oakley | 2,637 | 6 | $78k | $137k | 41% |
| 67764 | Winona | 401 | 1 | $66k | $105k | 94% |
| 67747 | Monument | 151 | 1 | $75k | $158k | 93% |
Partly in Logan 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 Logan County extend into another county. A ZIP code follows mail routes, not county borders.
| ZIP | In Logan | Elsewhere |
|---|---|---|
| 67871 | 3% | Scott County88%; Gove County5%; Finney County3%; Wichita County1% |
| 67748 | 41% | Thomas County34%; Gove County23%; Sheridan County2% |
| 67861 | 6% | Wichita County94% |
| 67732 | 13% | Thomas County50%; Sherman County27%; Rawlins County10% |
| 67764 | 94% | Thomas County6% |
| 67761 | 34% | Wallace County66% |
| 67747 | 93% | Thomas County7% |
Source: U.S. Census Bureau, 2020 ZCTA-county relationship file (shares of land area).
Which first three digits do Logan County's ZIP codes use?
The first three digits of a ZIP code name the sectional center, the mail processing plant that sorts it. Logan County's ZIP codes use 2 prefixes: 677 and 678.
Source: U.S. Postal Service, labeling list L005 (3-digit ZIP Code prefix groups, SCF sortation), effective October 1, 2026.