11 ZIP Codes
| Zip Code | City | Population ↓ |
|---|---|---|
| 54481 | Stevens Point | 28,242 |
| 54467 | Plover | 14,870 |
| 54482 | Stevens Point | 8,963 |
| 54406 | Amherst | 4,040 |
| 54473 | Rosholt | 2,472 |
| 54423 | Custer | 2,394 |
| 54443 | Junction City | 2,145 |
| 54909 | Almond | 1,982 |
| 54921 | Bancroft | 1,482 |
| 54407 | Amherst Junction | 1,350 |
| 54458 | Nelsonville | 133 |
The data shown reflect ZCTAs from the US Census. As of 2025, there are 11 ZCTAs in Portage County, Wisconsin (US Census).