County ZIP codes · Minnesota · FIPS 27055
Houston County, MN ZIP Codes
Houston County, Minnesota has 9 ZIP codes (Census 2020 ZCTA-county file; GeoNames postal codes, October 2026), all residential. 7 of the residential ones lie mainly in Houston County and 2 mainly in a neighboring county; 5 cross the county line. Median household income ranges from $59,205 in 55974 (Spring Grove) to $88,750 in 55971 (Rushford) (Census Bureau, ACS 2020-2024).
- ACS2020-24
- Census2020
Where are the ZIP codes of Houston 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 $66,250 and $80,161.
They carry 9 postal town names.
Source: U.S. Census Bureau, ACS 2020-2024 5-year estimates (B19013).
All 9 residential ZIP codes in Houston County
7 ZIP codes lie mainly in Houston County; 2 more reach into it from a neighboring county and follow the first table.
| In this county | ||||||
|---|---|---|---|---|---|---|
| 55947 | La Crescent | 7,403 | 101 | $89k | $302k | 63% |
| 55921 | Caledonia | 4,659 | 27 | $80k | $202k | 100% |
| 55943 | Houston | 3,221 | 19 | $72k | $240k | 80% |
| 55974 | Spring Grove | 1,902 | 23 | $59k | $186k | 96% |
| 55941 | Hokah | 1,072 | 40 | $73k | $219k | 100% |
| 55919 | Brownsville | 1,040 | 23 | $78k | $223k | 100% |
| 55931 | Eitzen | 392 | 21 | $78k | $131k | 100% |
Partly in Houston 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?
5 ZIP codes of Houston County extend into another county. A ZIP code follows mail routes, not county borders.
| ZIP | In Houston | Elsewhere |
|---|---|---|
| 55947 | 63% | Winona County 37% |
| 55943 | 80% | Winona County 20% |
| 55971 | 18% | Fillmore County 44%; Winona County 38% |
| 55974 | 96% | Fillmore County 4% |
| 55954 | 12% | Fillmore County 88% |
Source: U.S. Census Bureau, 2020 ZCTA-county relationship file (shares of land area).
Which first three digits do Houston County's ZIP codes use?
The first three digits of a ZIP code name the sectional center, the mail processing plant that sorts it. Every ZIP code of Houston County starts with 559.
| Prefix | Sectional center | Here | All codes |
|---|---|---|---|
| 559 | St Paul, MN (SCF 550) | 9 | 73 |
Source: U.S. Postal Service, labeling list L005 (3-digit ZIP Code prefix groups, SCF sortation), effective October 1, 2026.