Richland County, WI ZIP codes
There are 7 ZIP codes in Richland County, WI, in 7 towns, from 53518 to 54664. The largest are 53581 (Richland Center), 53556 (Lone Rock) and 54664 (Viola). 2 more cross into it from neighbouring counties: 54634 and 53573.
The county seat is Richland Center.
- ZIP codes
- 7
- Partly in it
- 2 more
- Towns
- 7
- County seat
- Richland Center
- County FIPS
55103- State
- Wisconsin
- Population
- 17,205
- Median household income
- $66,420
- Land area
- 586 sq mi
- Area code
- 353
Richland County ZIP codes by town
- Richland Center (county seat)
- 53581
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.
ZIP codes partly in Richland County
These ZIP codes lie mostly in a neighbouring county but each cover a twentieth or more of Richland County.
- 53573 Muscoda · mostly in Grant County
- 54634 Hillsboro · mostly in Vernon County
Map of Richland County ZIP codes
The ZIP codes of Richland 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.
Richland County in numbers
About 17,205 people live in Richland County, in 7,250 households, the 57th most populous of Wisconsin's 72 counties. The median household income is $66,420 a year, 14% below the Wisconsin median of $77,485 (US: $80,734). The median owner-occupied home is valued at $197,500 (26% below the Wisconsin median), and median gross rent is $771 a month. The median age is 46.6; 21.2% of adults 25 and over hold a bachelor's degree or higher (33.4% across Wisconsin); the average commute takes 24 minutes.
| Population | 17,205 |
|---|---|
| Households | 7,250 |
| Median age | 46.6 |
| Median household income | $66,420 |
| Median home value | $197,500 |
| Median gross rent | $771 |
| Bachelor's degree or higher | 21.2% |
| Mean commute | 24.4 min |
| Population density | 29 / 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 Richland County
| Town | ZIP codes | Population |
|---|---|---|
| Richland Center | 1 | 5,109 |
| Lone Rock | 1 | 734 |
| Viola | 1 | 551 |
| Blue River | 1 | 472 |
| Sextonville | 1 | 459 |
| Cazenovia | 1 | 267 |
| Gotham | 1 | 177 |
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 Richland County.
- Sauk County (15)
- Grant County (22)
- Vernon County (10)
- Juneau County (10)
- Iowa County (13)
- Crawford County (10)
Not sure you are in Richland County? What county am I in? answers from your location, near a county line included.
Every ZIP code in Richland County, with figures
| ZIP | City | Type | Population | Median income | Median home |
|---|---|---|---|---|---|
53518 | Blue River , WI | Standard | 1,489 | $62,384 | $164,900 |
53540 | Gotham , WI | Standard | 112 | $61,458 | $127,500 |
53556 | Lone Rock , WI | Standard | 2,428 | $67,727 | $185,400 |
53581 | Richland Center , WI | Standard | 10,176 | $64,833 | $196,100 |
53584 | Sextonville , WI | Standard | 7 | — | — |
53924 | Cazenovia , WI | Standard | 1,346 | $72,333 | $222,400 |
54664 | Viola , WI | Standard | 1,571 | $72,898 | $171,100 |
Cite this page
zipcodes.pro. “Richland County ZIP codes.” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/state/wi/county/richland
Underlying data is public domain or openly licensed — sources, vintages and licences.