Columbia County, Wisconsin ZIP codes
14 ZIP codes are in Columbia County, plus 7 that cross in from neighboring counties. It's part of the Madison, WI metro area.
- ZIP codes
- 14
- Population in these ZIPs
- 58,583
- Avg. median income
- $88,800population-weighted
- Cities & towns
- 13
Click anywhere on the map to see which ZIP code it's in.
ZIP codes in Columbia County
| ZIP code | City | Population | Median income | Typical home value |
|---|---|---|---|---|
| 53555 | Lodi | 8,933 | $119,305 | $476,000 |
| 53901 | Portage | 14,291 | $74,092 | $291,900 |
| 53911 | Arlington | 1,450 | $100,625 | $376,000 |
| 53923 | Cambria | 2,295 | $72,500 | $294,400 |
| 53925 | Columbus | 8,754 | $84,044 | $349,700 |
| 53928 | Doylestown | 63 | $85,625 | $137,500 |
| 53932 | Fall River | 2,495 | $85,781 | $358,700 |
| 53935 | Friesland | 297 | $86,250 | $151,300 |
| 53954 | Pardeeville | 6,678 | $83,207 | $363,500 |
| 53955 | Poynette | 6,125 | $101,134 | $408,000 |
| 53956 | Randolph | 3,477 | $84,231 | $304,300 |
| 53957 PO Box | Randolph | — | — | — |
| 53960 | Rio | 3,396 | $84,911 | $350,000 |
| 53969 | Wyocena | 329 | $77,222 | $190,800 |
ZIP codes partly in Columbia County
These ZIP codes are mostly in a neighboring county but cover part of Columbia County.
| ZIP code | City | County | Population | Median income | Typical home value |
|---|---|---|---|---|---|
| 53532 | Deforest | Dane County | 16,514 | $110,022 | $477,900 |
| 53561 | Merrimac | Sauk County | 1,872 | $91,103 | $507,000 |
| 53578 | Prairie Du Sac | Sauk County | 6,503 | $105,610 | $430,600 |
| 53583 | Sauk City | Sauk County | 5,816 | $97,286 | $406,900 |
| 53913 | Baraboo | Sauk County | 21,704 | $74,629 | $315,700 |
| 53926 | Dalton | Green Lake County | 1,951 | $62,917 | $295,400 |
| 53965 | Wisconsin Dells | Adams County | 10,818 | $66,667 | $305,000 |
Population and median household income: ACS 2020–2024 5-year estimates. Typical home value: Zillow Home Value Index (September 2026) where available, otherwise the ACS median owner-reported value. "PO Box" marks ZIP codes with no delivery area of their own. Methodology
Cities and towns in Columbia County
Nearby counties
Frequently asked questions
How many ZIP codes are in Columbia County, Wisconsin?
14 ZIP codes are mainly in Columbia County, and 7 more ZIP codes from neighboring areas reach partly into it.
What cities are in Columbia County?
ZIP codes in Columbia County use the city names Arlington, Cambria, Columbus, Doylestown, Fall River, Friesland, Lodi, Pardeeville, Portage, Poynette, Randolph and Rio and others.
What metro area is Columbia County in?
Columbia County is part of the Madison, WI metropolitan statistical area.