Columbia County, WI ZIP codes
Columbia County ZIP codes by town
Each ZIP code is listed under the county most of its land lies in and the town the Postal Service names it for; a ZIP code's own page shows exactly how it is split.
Map of Columbia County ZIP codes
The ZIP codes of Columbia County, shaded. Outlines are Census ZIP Code Tabulation Areas (2020), which approximate the mail routes; PO-box and single-address codes have no area and are not drawn. Click any area to open its ZIP code.
Columbia County in numbers
About 58,272 people live in Columbia County, in 24,158 households, the 26th most populous of Wisconsin's 72 counties. The median household income is $85,351 a year, 10% above the Wisconsin median of $77,485 (US: $80,734). The median owner-occupied home is valued at $283,200 (6% above the Wisconsin median), and median gross rent is $978 a month. The median age is 43.7; 26.0% of adults 25 and over hold a bachelor's degree or higher (33.4% across Wisconsin); the average commute takes 26 minutes.
| Population | 58,272 |
|---|---|
| Households | 24,158 |
| Median age | 43.7 |
| Median household income | $85,351 |
| Median home value | $283,200 |
| Median gross rent | $978 |
| Bachelor's degree or higher | 26.0% |
| Mean commute | 26.0 min |
| Population density | 76 / sq mi |
U.S. Census Bureau, American Community Survey 2020–2024 5-year estimates. Survey estimates carry margins of error, wider for small places. Sources and methods.
Largest towns in Columbia County
| Town | ZIP codes | Population |
|---|---|---|
| Portage | 1 | 10,236 |
| Columbus | 1 | 5,488 |
| Lodi | 1 | 3,204 |
| Poynette | 1 | 2,678 |
| Fall River | 1 | 1,678 |
| Pardeeville | 1 | 1,672 |
| Randolph | 2 | 1,642 |
| Rio | 1 | 1,141 |
| Arlington | 1 | 946 |
| Cambria | 1 | 795 |
| Wyocena | 1 | 676 |
| Friesland | 1 | 297 |
| Doylestown | 1 | 160 |
Population of the census place of that name where there is one, otherwise of the ZIP codes the Postal Service addresses by it. A town's ZIP codes can reach past the county line.
Neighbouring counties
Counties that share a ZIP code with Columbia County.
- Dane County (57)
- Dodge County (20)
- Sauk County (15)
- Juneau County (10)
- Adams County (7)
- Green Lake County (6)
- Marquette County (7)
Not sure you are in Columbia County? What county am I in? answers from your location, near a county line included.
Every ZIP code in Columbia County, with figures
| ZIP | City | Type | Population | Median income | Median home |
|---|---|---|---|---|---|
53555 | Lodi , WI | Standard | 8,933 | $119,305 | $392,200 |
53901 | Portage , WI | Standard | 14,291 | $74,092 | $227,700 |
53911 | Arlington , WI | Standard | 1,450 | $100,625 | $296,100 |
53923 | Cambria , WI | Standard | 2,295 | $72,500 | $220,700 |
53925 | Columbus , WI | Standard | 8,754 | $84,044 | $268,000 |
53928 | Doylestown , WI | Standard | 63 | $85,625 | $137,500 |
53932 | Fall River , WI | Standard | 2,495 | $85,781 | $309,400 |
53935 | Friesland , WI | Standard | 297 | $86,250 | $151,300 |
53954 | Pardeeville , WI | Standard | 6,678 | $83,207 | $278,600 |
53955 | Poynette , WI | Standard | 6,125 | $101,134 | $332,000 |
53956 | Randolph , WI | Standard | 3,477 | $84,231 | $232,800 |
53957 | Randolph , WI | No street area | — | — | — |
53960 | Rio , WI | Standard | 3,396 | $84,911 | $282,100 |
53969 | Wyocena , WI | Standard | 329 | $77,222 | $190,800 |
Cite this page
zipcodes.pro. “Columbia County ZIP codes.” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/state/wi/county/columbia
Underlying data is public domain or openly licensed — sources, vintages and licences.