| Zip Code | City | Population ↓ |
|---|---|---|
| 54981 | Waupaca | 14,902 |
| 54961 | New London | 14,232 |
| 54929 | Clintonville | 8,915 |
| 54983 | Weyauwega | 4,383 |
| 54945 | Iola | 3,401 |
| 54949 | Manawa | 3,341 |
| 54950 | Marion | 2,646 |
| 54977 | Scandinavia | 1,450 |
| 54962 | Ogdensburg | 1,100 |
| 54946 | King | 480 |
| 54933 | Embarrass | 285 |
| 54926 | Big Falls | 133 |
The data shown reflect ZCTAs from the US Census. As of 2024, there are 12 ZCTAs in Waupaca County, Wisconsin (US Census).