County ZIP codes · Wisconsin · FIPS 55019
Clark County, WI ZIP Codes
Clark County, Wisconsin has 20 ZIP codes (Census 2020 ZCTA-county file; GeoNames postal codes, October 2026), all residential. 14 of the residential ones lie mainly in Clark County and 6 mainly in a neighboring county; 15 cross the county line. Median household income ranges from $54,964 in 54768 (Stanley) to $79,899 in 54420 (Chili) (Census Bureau, ACS 2020-2024).
- ACS2020-24
- Census2020
Where are the ZIP codes of Clark 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 $62,679 and $69,659.
They carry 20 postal town names.
Source: U.S. Census Bureau, ACS 2020-2024 5-year estimates (B19013).
All 20 residential ZIP codes in Clark County
14 ZIP codes lie mainly in Clark County; 6 more reach into it from a neighboring county and follow the first table.
| In this county | ||||||
|---|---|---|---|---|---|---|
| 54456 | Neillsville | 5,890 | 26 | $67k | $175k | 100% |
| 54771 | Thorp | 4,171 | 28 | $66k | $186k | 88% |
| 54479 | Spencer | 3,630 | 47 | $77k | $183k | 56% |
| 54446 | Loyal | 3,500 | 46 | $74k | $160k | 100% |
| 54437 | Greenwood | 3,236 | 26 | $67k | $159k | 100% |
| 54460 | Owen | 2,620 | 31 | $66k | $163k | 82% |
| 54498 | Withee | 2,362 | 21 | $76k | $154k | 51% |
| 54436 | Granton | 2,203 | 21 | $61k | $168k | 100% |
| 54425 | Dorchester | 1,988 | 48 | $63k | $175k | 58% |
| 54422 | Curtiss | 1,553 | 38 | $72k | $156k | 77% |
| 54420 | Chili | 1,330 | 33 | $80k | $201k | 91% |
| 54488 | Unity | 1,275 | 33 | $64k | $142k | 54% |
| 54746 | Humbird | 693 | 16 | $62k | $147k | 83% |
| 54493 | Willard | 631 | 6 | $71k | $214k | 100% |
Partly in Clark County
| In this county | ||||||
|---|---|---|---|---|---|---|
| 54421 | Colby | 3,468 | 50 | $61k | $195k | 45% |
| 54768 | Stanley | 6,557 | 49 | $55k | $209k | 33% |
| 54405 | Abbotsford | 2,770 | 93 | $70k | $178k | 25% |
| 54754 | Merrillan | 1,308 | 17 | $58k | $170k | 17% |
| 54741 | Fairchild | 1,664 | 17 | $63k | $167k | 13% |
| 54466 | Pittsville | 2,557 | 8 | $67k | $186k | 4% |
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?
15 ZIP codes of Clark County extend into another county. A ZIP code follows mail routes, not county borders.
| ZIP | In Clark | Elsewhere |
|---|---|---|
| 54768 | 33% | Chippewa County45%; Taylor County13%; Eau Claire County10% |
| 54771 | 88% | Taylor County12% |
| 54479 | 56% | Marathon County44% |
| 54421 | 45% | Marathon County55% |
| 54405 | 25% | Marathon County75% |
| 54460 | 82% | Taylor County18% |
| 54466 | 4% | Wood County53%; Jackson County42% |
| 54498 | 51% | Taylor County49% |
| 54425 | 58% | Marathon County31%; Taylor County11% |
| 54741 | 13% | Eau Claire County48%; Jackson County39% |
| 54422 | 77% | Taylor County23% |
| 54420 | 91% | Wood County9% |
| 54754 | 17% | Jackson County83% |
| 54488 | 54% | Marathon County46% |
| 54746 | 83% | Jackson County17% |
Source: U.S. Census Bureau, 2020 ZCTA-county relationship file (shares of land area).
Which first three digits do Clark County's ZIP codes use?
The first three digits of a ZIP code name the sectional center, the mail processing plant that sorts it. Clark County's ZIP codes use 2 prefixes: 544 and 547.
Source: U.S. Postal Service, labeling list L005 (3-digit ZIP Code prefix groups, SCF sortation), effective October 1, 2026.