Clark County, WI ZIP codes
There are 14 ZIP codes in Clark County, WI, in 14 towns, from 54420 to 54771. The largest are 54456 (Neillsville), 54771 (Thorp) and 54479 (Spencer).
The county seat is Neillsville.
- ZIP codes
- 14
- Towns
- 14
- County seat
- Neillsville
- County FIPS
55019- State
- Wisconsin
- Population
- 34,739
- Median household income
- $67,400
- Land area
- 1,210 sq mi
Clark County ZIP codes by town
- Neillsville (county seat)
- 54456
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 Clark County ZIP codes
The ZIP codes of Clark 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.
Clark County in numbers
About 34,739 people live in Clark County, in 12,839 households, the 41st most populous of Wisconsin's 72 counties. The median household income is $67,400 a year, 13% below the Wisconsin median of $77,485 (US: $80,734). The median owner-occupied home is valued at $172,800 (35% below the Wisconsin median), and median gross rent is $823 a month. The median age is 36.7; 13.0% of adults 25 and over hold a bachelor's degree or higher (33.4% across Wisconsin); the average commute takes 22 minutes.
| Population | 34,739 |
|---|---|
| Households | 12,839 |
| Median age | 36.7 |
| Median household income | $67,400 |
| Median home value | $172,800 |
| Median gross rent | $823 |
| Bachelor's degree or higher | 13.0% |
| Mean commute | 22.2 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 Clark County
| Town | ZIP codes | Population |
|---|---|---|
| Neillsville | 1 | 2,230 |
| Spencer | 1 | 1,686 |
| Thorp | 1 | 1,590 |
| Loyal | 1 | 1,363 |
| Greenwood | 1 | 1,100 |
| Owen | 1 | 920 |
| Dorchester | 1 | 879 |
| Willard | 1 | 631 |
| Withee | 1 | 520 |
| Curtiss | 1 | 442 |
| Unity | 1 | 378 |
| Granton | 1 | 345 |
| Chili | 1 | 306 |
| Humbird | 1 | 300 |
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 Clark County.
- Marathon County (19)
- Eau Claire County (8)
- Wood County (15)
- Chippewa County (10)
- Jackson County (7)
- Taylor County (9)
Not sure you are in Clark County? What county am I in? answers from your location, near a county line included.
Every ZIP code in Clark County, with figures
| ZIP | City | Type | Population | Median income | Median home |
|---|---|---|---|---|---|
54420 | Chili , WI | Standard | 1,330 | $79,899 | $201,300 |
54422 | Curtiss , WI | Standard | 1,553 | $71,667 | $156,300 |
54425 | Dorchester , WI | Standard | 1,988 | $63,424 | $175,000 |
54436 | Granton , WI | Standard | 2,203 | $61,048 | $168,000 |
54437 | Greenwood , WI | Standard | 3,236 | $67,097 | $158,500 |
54446 | Loyal , WI | Standard | 3,500 | $74,342 | $159,600 |
54456 | Neillsville , WI | Standard | 5,890 | $66,934 | $174,500 |
54460 | Owen , WI | Standard | 2,620 | $65,583 | $162,800 |
54479 | Spencer , WI | Standard | 3,630 | $77,371 | $182,800 |
54488 | Unity , WI | Standard | 1,275 | $63,571 | $142,400 |
54493 | Willard , WI | Standard | 631 | $70,556 | $214,400 |
54498 | Withee , WI | Standard | 2,362 | $75,833 | $153,500 |
54746 | Humbird , WI | Standard | 693 | $62,411 | $147,100 |
54771 | Thorp , WI | Standard | 4,171 | $65,625 | $186,400 |
Cite this page
zipcodes.pro. “Clark County ZIP codes.” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/state/wi/county/clark
Underlying data is public domain or openly licensed — sources, vintages and licences.