County · Wisconsin · United States
Winnebago County ZIP codes
12 ZIP codes · 10 cities · FIPS 55139
Key facts
- State
- Wisconsin (WI)
- FIPS code
- 55139
- Population
- 171,357
- Median household income
- $72,873
- Median age
- 38.4
- Land area
- 434.7 sq mi (1,125.9 km²)
- Population density
- 394 / sq mi
- Area codes
- 274, 920
Cities and ZIP codes in Winnebago County (10)
| City | ZIP codes |
|---|---|
| Oshkosh | 54901, 54902, 54904 |
| Butte Des Morts | 54927 |
| Larsen | 54947 |
| Menasha | 54952 |
| Neenah | 54956 |
| Omro | 54963 |
| Pickett | 54964 |
| Waukau | 54980 |
| Winnebago | 54985 |
| Winneconne | 54986 |
About this page
County figures are Census county-level values (ACS 5-year); the ZIP list shows the ZIPs whose primary county this is — a ZIP on a border can also serve neighbouring counties.
Sources: U.S. Census Bureau (2020 county relationship file, ACS 5-year) · GeoNames. Methodology.