54903 ZIP Code — Oshkosh, WI
Winnebago County, Wisconsin
ZIP code 54903 is located in Oshkosh, Wisconsin, within Winnebago County. It covers approximately 0.00 square miles and serves a population of 0 residents. This is a standard ZIP code in the Central (CT) timezone, served by area code 920.
0
population
0.00
sq mi land
Standard
ZIP type
Central (CT)
timezone
54903 ZIP code map
Cities in ZIP code 54903
Below are the cities the US Postal Service accepts for ZIP code 54903. Using any city not on this list may result in mail delivery delays.
| City | Status |
|---|---|
| Oshkosh | Acceptable |
Demographics
updated 06/2026
| Population | |
|---|---|
| Total population | 0 |
| Population density | 0 / sq mi |
| State FIPS | 55 |
| County FIPS | 139 |
| Geography | |
|---|---|
| Land area | 0.00 sq mi |
| Water area | 0.00 sq mi |
| Latitude | 44.0247 |
| Longitude | -88.5426 |
| Timezone | Central (CT) |
| Area code | 920 |