| City: | Winnebago, Wisconsin |
| County: | Winnebago County |
| Timezone: | Central (GMT -06:00) |
| Local Time: | 9:30:27 PM |
| Population: | 590 [See All] |
| Area Codes: | 274 / 920 |
| Classification: | PO Box |
| Coordinates: | 44.0751, -88.5185 |
| Land Area: | 0.09 sq mi |
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Winnebago, Wisconsin (54985) isn't a town. It's a correctional facility. Of the 590 people counted in this ZIP code, 562 live in institutionalized group quarters. That's 95% of the population. Only 13 housing units exist here, all owner-occupied, likely staff housing on or near facility grounds.
This is a PO Box Only Zone. There's no alternative mail delivery for the 0.24 square miles this ZIP covers. The post office maintains 74 PO Boxes for just 13 households, giving it an adoption rate of 5.7 times the local housing count. Staff, facility administration, and inmates all rely on this single post office.
Mail to inmates follows specific correctional facility protocols. The post office handles both standard PO Box service for staff and the specialized mail processing that prisons require. Per capita income here runs just $1,743 annually, a figure driven by the incarcerated population.
The 28 non-institutionalized residents (staff and their families) live in a small cluster along County Road A, Sherman Road, Pickett Avenue, and Butler Avenue. The facility sits in rural Winnebago County, about 12 miles from Appleton's suburban neighborhoods.
Despite the PO Box classification, this ZIP does have 2 rural carrier routes serving the handful of residential addresses. General Delivery is also available. Racial demographics show 66% White, 30% Black, and small percentages of other groups, a mix common in Wisconsin correctional facilities.
Four streets serve staff housing near the correctional facility.
ZIP Code 54985 has 590 residents and 13 households (average 2.15 persons per household). The median age is 37.1 years, younger than the state (40.1) and slightly younger than the nation (38.8). The gender split is 78.0% male and 22.0% female, which is much higher than the national male share (49.1%), making this a male-majority area. Largest groups are White (66.1%, much lower than the state average of 80.4%) and Black or African American (30.2%, much higher than the state average of 6.4% and well above the national average of 12.4%); Hispanic or Latino residents make up 4.6%, which is much lower than the national average (18.7%), and Black or African American share is much higher than both the state (6.4%) and national averages (12.4%).
Explore More:Population Over TimeBy Age & GenderBy RaceBy GenderNativity & Citizenship
| 2020 Population: | 590Source: Census DHC |
| 2024 ACS Population Estimate: | 593Source: Census ACS |
| 2026 ZC Population Estimate: | 0Source: ZIP-Codes.com |
| Population Density: | 6,555.6 people per sq mile |
| Average Income: | $0Source: Census ACS |
| Households: | 13Source: Census DHC |
| Average House Value: | $0Source: Census ACS |
| Persons Per Household: | 2.15Source: Census DHC |
| Average Family Size: | 4.80Source: Census ACS |
| Group | 2010 | 2011 | 2102 | 2013 | 2014 | 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Census ACS Population Estimate | -- | 457 | 461 | 313 | 82 | 410 | 425 | 415 | 415 | 1,033 | 300 | 270 | 522 | 593 |
| Decennial Census | 836 | -- | -- | -- | -- | -- | -- | -- | -- | -- | 590 | -- | -- | -- |
Median Age: 37.1
Male Median Age: 35.8
Female Median Age: 40.5
| Group | < 5 | 5-9 | 10-14 | 15-19 | 20-24 | 25-29 | 30-34 | 35-39 | 40-44 | 45-49 | 50-54 | 55-59 | 60-64 | 65-69 | 70-74 | 75-79 | 80-84 | 85+ |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Male | 0 | 0 | 3 | 14 | 35 | 74 | 98 | 48 | 40 | 42 | 26 | 51 | 12 | 3 | 4 | 0 | 1 | 9 |
| Female | 1 | 0 | 1 | 12 | 6 | 16 | 13 | 16 | 13 | 12 | 6 | 15 | 8 | 5 | 2 | 2 | 0 | 2 |
| Total | 1 | 0 | 4 | 26 | 41 | 90 | 111 | 64 | 53 | 54 | 32 | 66 | 20 | 8 | 6 | 2 | 1 | 11 |
| White: | 390 | 63.21% |
| Black: | 178 | 28.85% |
| Hispanic:* | 27 | 4.38% |
| Asian: | 3 | 0.49% |
| American Indian: | 19 | 3.08% |
| Hawaiian: | 0 | 0% |
| Other: | 0 | 0% |
| Total: | 617 | 100% |
| Gender | Count | % | Median Age |
|---|---|---|---|
| Males: | 460 | 77.97% | 35.8 years |
| Females: | 130 | 22.03% | 40.5 years |
| Total: | 590 | 100% | 37.1 years |
| Native, born in the United States: | 586 | 98.82% |
| Native, born in PR, Island Areas, or abroad: | 5 | 0.84% |
| Foreign born, naturalized U.S. citizen: | 0 | 0.00% |
| Foreign born, not a U.S. citizen: | 2 | 0.34% |
| Total Population: | 593 | 100% |
| Total Native Population: | 591 | 99.66% |
| Total Foreign-born Population: | 2 | 0.34% |
In 2023, the Median household income is $0, which is far less than the state median ($75,670), and above its 2019 pre-pandemic level by $0. Family households earn a median of $0 versus $0 for nonfamily households (a difference of $0). By gender, male median income is $0 and female is $0, which is well under the state female median ($51,818), with a current gap of $0 that has stayed about the same from 2011 to 2023. The labor-force participation rate is 0.0%, which is much lower than the state rate (65.5%).
Explore More:Income Over TimeHousehold IncomeEmployment StatusBy Occupation
| Income Type | 2011 | 2012 | 2013 | 2014 | 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Median Household Income | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 |
| Median Family Income | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 |
| Median NonFamily Income | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 |
| Median Male Income | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $46,250 | $40,000 | $0 | $0 |
| Median Female Income | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 |
| Employed: | 0 | 0.00% |
| Unemployed: | 0 | 0.00% |
| Not In Labor Force: | 593 | 100.00% |
| Total: | 593 | 100% |
| Management, business, science, and arts: | 0 | 0% |
| Service: | 0 | 0% |
| Sales and Office: | 0 | 0% |
| Natural resources, construction, and maintenance: | 0 | 0% |
| Production, transportation, and material moving: | 0 | 0% |
| Total Civilian Employed Population: | 0 | 100% |
In 2023, 1.50% of adults (25+) have a bachelor's degree or higher, which is far lower than the national rate (35.00%). High school or higher is 79.20%, which is markedly below the state rate (93.40%). Insufficient data for health insurance coverage. Insufficient data for poverty. Among residents ages 3+, the largest enrollment group is college (80.00%). College enrollment is 80.00%, which is on par with the state rate (25.50%), meaning the community mirrors broader higher-education participation.
Explore More:Educational AttainmentHealth InsurancePoverty Over TimeSchool Enrollment
| Less than 9th grade: | 22 | 4.23% |
| 9th to 12th grade, no diploma: | 86 | 16.54% |
| High school graduate (includes equivalency): | 251 | 48.27% |
| Some college, no degree: | 86 | 16.54% |
| Associate's degree: | 67 | 12.88% |
| Bachelor's degree: | 8 | 1.54% |
| Graduate or professional degree: | 0 | 0.00% |
| Total: | 520 | 100% |
| High school or higher: | 412 | 79.23% |
| Bachelor's degree or higher: | 8 | 1.54% |
| Private Insurance: | 0 | 0% |
| Public Insurance: | 0 | 0% |
| No Insurance: | 0 | 0% |
| Total: | 0 | 100% |
| Has Health Insurance: | 0 | 0% |
| Group | 2011 | 2102 | 2013 | 2014 | 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| % of People in Poverty | -666,666,666.0% | -666,666,666.0% | -666,666,666.0% | -666,666,666.0% | -666,666,666.0% | -666,666,666.0% | -666,666,666.0% | -666,666,666.0% | -666,666,666.0% | 0.0% | 0.0% | 0.0% | 0.0% |
Note: Counts of Families & People in poverty are not published at the ZIP Code level due to small sample sizes. Percentages shown are survey estimates from the American Community Survey (ACS). They may differ from official poverty statistics. The U.S. Census Bureau defines poverty status by comparing a family's or individual's total income with federal poverty thresholds that vary by family size and composition.
| Nursery School, Preschool: | 0 | 0.00% |
| Kindergarten: | 0 | 0.00% |
| Elementary school (grades 1-8): | 0 | 0.00% |
| High school (grades 9-12): | 3 | 20.00% |
| College or graduate school: | 12 | 80.00% |
| Total: | 15 | 100% |
| Early Childhood: | 0 | 0.00% |
| K-12 (Primary & Secondary School): | 3 | 20.00% |
ZIP Code 54985 supports both business and residential activity. According to the Business Census (2024), there are 3 business establishments, employing about 704 people with an annual payroll of $53,077,000.
| # Residential Mailboxes: | 0Source: USPS |
| # Business Mailboxes: | 0Source: USPS |
| Total Delivery Receptacles: | 295Source: USPS |
| Single Family Delivery Units: | 0Source: USPS |
| Multi Family Delivery Units: | 0Source: USPS |
| # of Businesses: | 3Source: CBP |
| 1st Quarter Payroll: | $11,294,000Source: CBP |
| Annual Payroll: | $53,077,000Source: CBP |
| # of Employees: | 704Source: CBP |
ZIP Code 54985 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 171,357 people, about 0.34% of whom live in ZIP Code 54985. It covers 0.09 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: | 171,357Source: Census |
| MSA: | Appleton-Oshkosh-Neenah, WI MSASource: Census |
| Land Area: | 0.09 sq miSource: 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: | --Source: Census |
| Place Name: | --Source: Census |
We could not locate which school district 54985 belongs to, but we will update this once new district data is released. There are 4 public school(s) in this ZIP Code, and we have located 3 private school(s). 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 January 1, 2026.