Winnebago County, Wisconsin ZIP codes
15 ZIP codes are in Winnebago County, plus 7 that cross in from neighboring counties. It's part of the Oshkosh-Neenah, WI metro area.
- ZIP codes
- 15
- Population in these ZIPs
- 145,346
- Avg. median income
- $78,200population-weighted
- Cities & towns
- 10
Click anywhere on the map to see which ZIP code it's in.
ZIP codes in Winnebago County
| ZIP code | City | Population | Median income | Typical home value |
|---|---|---|---|---|
| 54901 | Oshkosh | 37,294 | $61,794 | $229,800 |
| 54902 | Oshkosh | 22,243 | $65,612 | $235,000 |
| 54903 PO Box | Oshkosh | — | — | — |
| 54904 | Oshkosh | 22,273 | $93,341 | $364,200 |
| 54906 PO Box | Oshkosh | — | — | — |
| 54927 | Butte Des Morts | 540 | $128,523 | $328,700 |
| 54934 PO Box | Eureka | — | — | — |
| 54947 | Larsen | 2,323 | $91,167 | $356,100 |
| 54956 | Neenah | 46,567 | $85,869 | $347,300 |
| 54957 PO Box | Neenah | — | — | — |
| 54963 | Omro | 7,271 | $86,227 | $292,400 |
| 54964 | Pickett | 974 | $82,857 | $348,400 |
| 54980 | Waukau | 218 | $31,711 | $190,100 |
| 54985 | Winnebago | 249 | — | — |
| 54986 | Winneconne | 5,394 | $93,189 | $358,300 |
ZIP codes partly in Winnebago County
These ZIP codes are mostly in a neighboring county but cover part of Winnebago County.
| ZIP code | City | County | Population | Median income | Typical home value |
|---|---|---|---|---|---|
| 54914 | Appleton | Outagamie County | 31,849 | $79,875 | $309,800 |
| 54915 | Appleton | Calumet County | 44,367 | $87,426 | $354,700 |
| 54923 | Berlin | Waushara County | 8,793 | $66,223 | $254,500 |
| 54940 | Fremont | Waushara County | 4,533 | $90,813 | $349,300 |
| 54952 | Menasha | Calumet County | 27,312 | $69,196 | $286,000 |
| 54971 | Ripon | Fond du Lac County | 10,907 | $66,699 | $262,200 |
| 54979 | Van Dyne | Fond du Lac County | 2,037 | $109,868 | $362,900 |
Population and median household income: ACS 2020–2024 5-year estimates. Typical home value: Zillow Home Value Index (September 2026) where available, otherwise the ACS median owner-reported value. "PO Box" marks ZIP codes with no delivery area of their own. Methodology
Cities and towns in Winnebago County
Nearby counties
Frequently asked questions
How many ZIP codes are in Winnebago County, Wisconsin?
15 ZIP codes are mainly in Winnebago County, and 7 more ZIP codes from neighboring areas reach partly into it.
What cities are in Winnebago County?
ZIP codes in Winnebago County use the city names Butte Des Morts, Eureka, Larsen, Neenah, Omro, Oshkosh, Pickett, Waukau, Winnebago and Winneconne.
What metro area is Winnebago County in?
Winnebago County is part of the Oshkosh-Neenah, WI metropolitan statistical area.