County ZIP codes · Kansas · FIPS 20077
Harper County, KS ZIP Codes
Harper County, Kansas has 11 ZIP codes (Census 2020 ZCTA-county file; GeoNames postal codes, October 2026), all residential. 7 of the residential ones lie mainly in Harper County and 4 mainly in a neighboring county; 7 cross the county line.
- ACS2020-24
- Census2020
Where are the ZIP codes of Harper County?
Source: U.S. Census Bureau, 2020 ZCTA cartographic boundaries; ACS 2020-2024 5-year estimates (B19013).
All 11 residential ZIP codes in Harper County
7 ZIP codes lie mainly in Harper County; 4 more reach into it from a neighboring county and follow the first table.
| In this county | ||||||
|---|---|---|---|---|---|---|
| 67003 | Anthony | 2,477 | 10 | $50k | $78k | 100% |
| 67058 | Harper | 1,777 | 9 | $62k | $96k | 86% |
| 67009 | Attica | 796 | 6 | $44k | $63k | 100% |
| 67036 | Danville | 236 | 6 | $88k | – | 100% |
| 67018 | Bluff City | 65 | 1 | – | $27k | 92% |
| 67049 | Freeport | 12 | 0 | – | – | 89% |
| 67150 | Waldron | 5 | 0 | – | – | 100% |
Partly in Harper 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 Harper County extend into another county. A ZIP code follows mail routes, not county borders.
| ZIP | In Harper | Elsewhere |
|---|---|---|
| 67058 | 86% | Kingman County 14% |
| 67004 | 28% | Sumner County 72% |
| 67118 | 2% | Kingman County 90%; Sedgwick County 6%; Sumner County 2% |
| 67061 | 33% | Barber County 67% |
| 67159 | 31% | Kingman County 69% |
| 67018 | 92% | Sumner County 8% |
| 67049 | 89% | Sumner County 11% |
Source: U.S. Census Bureau, 2020 ZCTA-county relationship file (shares of land area).
Which first three digits do Harper County's ZIP codes use?
The first three digits of a ZIP code name the sectional center, the mail processing plant that sorts it. Harper County's ZIP codes use 2 prefixes: 670 and 671.
Source: U.S. Postal Service, labeling list L005 (3-digit ZIP Code prefix groups, SCF sortation), effective October 1, 2026.