| City: | Oshkosh, Wisconsin |
| County: | Winnebago County |
| Timezone: | Central (GMT -06:00) |
| Local Time: | 7:33:52 AM |
| Population: | No Population Data |
| Area Codes: | 274 / 920 |
| Classification: | PO Box |
| Coordinates: | 44.0247, -88.5426 |
| Quick Link: |
ZIP Code 54903 isn't a residential community. It's the location of the Oshkosh Processing & Distribution Center (P&DC), a major USPS mail processing facility in Winnebago County, Wisconsin. With zero residential population but 6,278 employees across 49 establishments, this ZIP serves postal operations rather than households.
The facility operates within the larger Oshkosh postal area, geographically enclosed by ZIP Code 54902. Mail processing happens at two primary addresses: State Street (with 177 delivery records) and W 20th Avenue (with 75 records). The ZIP includes 249 PO Boxes and 403 business delivery points that support postal operations, including administrative offices, the Postmaster's office, and Stamps by Mail services.
Despite its PO Box classification, 54903 has city carrier delivery serving the facility. Three distinct city carrier routes handle mail distribution within the processing center. This isn't a PO Box Only Zone because standard street delivery exists throughout the broader Oshkosh area via neighboring ZIP codes.
Only two streets serve this postal processing facility.
ZIP Code 54903 supports both business and residential activity. According to the Business Census (2024), there are 47 business establishments, employing about 6,131 people with an annual payroll of $355,732,000. USPS data shows 0 residential mailboxes and 1 business mailboxes, reflecting local delivery coverage.
| # Residential Mailboxes: | 0Source: USPS |
| # Business Mailboxes: | 1Source: USPS |
| Total Delivery Receptacles: | 1,438Source: USPS |
| Single Family Delivery Units: | 0Source: USPS |
| Multi Family Delivery Units: | 0Source: USPS |
| # of Businesses: | 47Source: CBP |
| 1st Quarter Payroll: | $90,218,000Source: CBP |
| Annual Payroll: | $355,732,000Source: CBP |
| # of Employees: | 6,131Source: CBP |
ZIP Code 54903 is located in Winnebago County, Wisconsin, within the Oshkosh-Neenah, WI Metropolitan Statistical Area (CBSA 36780) and Wisconsin's 6th Congressional District. This Metro area has a population of 166,994 people, about 0.00% of whom live in ZIP Code 54903. It covers 0 sq mi of land and a water area of 0 sq mi.
| CBSA Name: | Oshkosh-Neenah, WISource: Census |
| CBSA Number: | 36780Source: Census |
| CBSA Type: | MetroSource: Census |
| CBSA Division: | --Source: Census |
| CBSA Population: | 166,994Source: Census |
| MSA: | Appleton-Oshkosh-Neenah, WI MSASource: Census |
| Land Area: | --Source: Census |
| Water Area: | --Source: Census |
| Congressional District: | 06Source: USPS |
| Congressional Land Area: | 4918.39 sq miSource: Census |
| PMSA: | --Source: Census |
| Intro Date: | < 2004-10Source: ZIP-Codes.com |
| Place FIPS Code: | 5560500Source: Census |
| Place Name: | Oshkosh city; WisconsinSource: Census |
We could not locate which school district 54903 belongs to, but we will update this once new district data is released. There are no public schools nor private schools with a mailing address in this ZIP Code. Listing Nearby schools instead. It also has 6 colleges, universities or post secondary education institutions nearby which would be a short commute to.
Our sources include trusted federal and licensed data from the United States Postal Service, U.S. Census Bureau, U.S. Geological Survey, Centers for Medicare & Medicaid Services, and the National Center for Education Statistics, along with proprietary datasets created by ZIP-Codes.com. Data last updated on February 1, 2026.