| Zip Code | City | Population ↓ |
|---|---|---|
| 54456 | Neillsville | 5,890 |
| 54771 | Thorp | 4,171 |
| 54479 | Spencer | 3,630 |
| 54446 | Loyal | 3,500 |
| 54437 | Greenwood | 3,236 |
| 54460 | Owen | 2,620 |
| 54498 | Withee | 2,362 |
| 54436 | Granton | 2,203 |
| 54425 | Dorchester | 1,988 |
| 54422 | Curtiss | 1,553 |
| 54420 | Chili | 1,330 |
| 54488 | Unity | 1,275 |
| 54746 | Humbird | 693 |
| 54493 | Willard | 631 |
The data shown reflect ZCTAs from the US Census. As of 2025, there are 14 ZCTAs in Clark County, Wisconsin (US Census).