County ZIP codes · Wisconsin · FIPS 55063
La Crosse County, WI ZIP Codes
La Crosse County, Wisconsin has 14 ZIP codes (Census 2020 ZCTA-county file; GeoNames postal codes, October 2026): 13 residential and 1 for PO boxes or a single organization. 9 of the residential ones lie mainly in La Crosse County and 4 mainly in a neighboring county; 7 cross the county line. Median household income ranges from $52,012 in 54603 (La Crosse) to $103,194 in 54669 (West Salem) (Census Bureau, ACS 2020-2024).
- ACS2020-24
- Census2020
Where are the ZIP codes of La Crosse 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 $72,596 and $85,588.
They carry 12 postal town names.
Source: U.S. Census Bureau, ACS 2020-2024 5-year estimates (B19013).
All 13 residential ZIP codes in La Crosse County
9 ZIP codes lie mainly in La Crosse County; 4 more reach into it from a neighboring county and follow the first table.
| In this county | ||||||
|---|---|---|---|---|---|---|
| 54601 | La Crosse | 50,397 | 668 | $62k | $235k | 100% |
| 54650 | Onalaska | 25,304 | 819 | $86k | $292k | 100% |
| 54636 | Holmen | 16,727 | 201 | $96k | $322k | 100% |
| 54603 | La Crosse | 13,738 | 1,551 | $52k | $182k | 100% |
| 54669 | West Salem | 8,228 | 159 | $103k | $312k | 100% |
| 54614 | Bangor | 2,776 | 35 | $86k | $250k | 100% |
| 54623 | Coon Valley | 1,928 | 38 | $89k | $276k | 57% |
| 54653 | Rockland | 1,335 | 62 | $73k | $264k | 61% |
| 54644 | Mindoro | 1,236 | 20 | $77k | $257k | 94% |
Partly in La Crosse 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 La Crosse County extend into another county. A ZIP code follows mail routes, not county borders.
| ZIP | In La Crosse | Elsewhere |
|---|---|---|
| 54667 | 3% | Vernon County 97% |
| 54619 | 4% | Monroe County 74%; Vernon County 22% |
| 54658 | 8% | Vernon County 92% |
| 54642 | 3% | Jackson County 93%; Trempealeau County 4% |
| 54623 | 57% | Vernon County 43% |
| 54653 | 61% | Monroe County 39% |
| 54644 | 94% | Jackson County 6% |
Source: U.S. Census Bureau, 2020 ZCTA-county relationship file (shares of land area).
PO Box and single-organization ZIP codes
| ZIP | Postal name |
|---|---|
| 54602 | La Crosse |
Source: GeoNames postal codes (CC BY 4.0).
Which first three digits do La Crosse 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 La Crosse County starts with 546.
| Prefix | Sectional center | Here | All codes |
|---|---|---|---|
| 546 | St Paul, MN (SCF 550) | 14 | 59 |
Source: U.S. Postal Service, labeling list L005 (3-digit ZIP Code prefix groups, SCF sortation), effective October 1, 2026.