| City: | Duluth, Minnesota |
| City Alias: | Dlth Fed Pris, Duluth Federal Prison |
| County: | Saint Louis County |
| Timezone: | Central (GMT -06:00) |
| Local Time: | 7:39:20 AM |
| Population: | 461 [See All] |
| Area Code: | 218 |
| Classification: | PO Box |
| Coordinates: | 46.8362, -92.1974 |
| Land Area: | 0.078 sq mi |
| Quick Link: |
The median age of 45.4 years reflects the adult inmate population. Every resident lives in group quarters. There are no traditional households, no owner-occupied homes, and no rental units. The census counts 461 institutionalized individuals, making this one of Minnesota's few ZIPs where the entire population resides in a correctional facility.
Mail delivery here works differently than in residential areas. The facility doesn't use street addresses. Instead, it operates through PO Box service, with just two ZIP+4 records allocated to the prison. Inmates receive mail through the institution's internal distribution system, which connects to the post office serving the broader Duluth community.
The ZIP sits within Saint Louis County's West End neighborhood, completely enclosed by ZIP code 55806, which provides standard residential and commercial service to surrounding Duluth areas. That larger ZIP handles street delivery for the neighborhoods that ring the federal facility, including Spirit Valley and Observation Hill.
One business operates within 55814's boundaries, likely a service provider for the institution. The area contains no residential streets, no named buildings in the postal database, and no carrier routes. The median household income isn't calculated because households don't exist here in the traditional sense. This ZIP exists solely to serve a federal correctional facility and the people temporarily residing there.
This ZIP contains no street addresses. The federal prison facility receives mail through PO Box service only, with internal institutional distribution handling delivery to inmates and staff.
ZIP Code 55814 has 461 residents and 0 households. The median age is 45.4 years, significantly older than the state (38.4) and older than the nation (38.8). The gender split is 97.8% male and 2.2% female, which is much higher than the national male share (49.1%), making this a male-majority area. Largest groups are White (67.7%, much lower than the state average of 77.5%) and Black or African American (25.4%, much higher than the state average of 7.0% and well above the national average of 12.4%); Hispanic or Latino residents make up 10.6%, which is much lower than the national average (18.7%), and Black or African American share is much higher than both the state (7.0%) and national averages (12.4%).
Explore More:Population Over TimeBy Age & GenderBy RaceBy GenderNativity & Citizenship
| 2020 Population: | 461Source: Census DHC |
| 2024 ACS Population Estimate: | 319Source: Census ACS |
| 2026 ZC Population Estimate: | 0Source: ZIP-Codes.com |
| Population Density: | 5,910.3 people per sq mile |
| Average Income: | $0Source: Census ACS |
| Households: | 0Source: Census DHC |
| Average House Value: | $666,666,666Source: Census ACS |
| Persons Per Household: | 0.00Source: Census DHC |
| Average Family Size: | 0.00Source: Census ACS |
| Group | 2010 | 2011 | 2102 | 2013 | 2014 | 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Census ACS Population Estimate | -- | 702 | 714 | 725 | 671 | 782 | 749 | 690 | 644 | 596 | 526 | 490 | 380 | 311 | 319 |
| Decennial Census | 772 | -- | -- | -- | -- | -- | -- | -- | -- | -- | 461 | -- | -- | -- | -- |
Median Age: 45.4
Male Median Age: 45.3
Female Median Age: 49
| 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 | 0 | 0 | 10 | 25 | 35 | 57 | 92 | 69 | 55 | 63 | 29 | 8 | 4 | 4 | 0 | 0 |
| Female | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 2 | 0 | 2 | 3 | 2 | 0 | 0 | 0 | 0 | 0 | 0 |
| Total | 0 | 0 | 0 | 0 | 10 | 25 | 36 | 59 | 92 | 71 | 58 | 65 | 29 | 8 | 4 | 4 | 0 | 0 |
| White: | 312 | 61.18% |
| Black: | 117 | 22.94% |
| Hispanic:* | 49 | 9.61% |
| Asian: | 13 | 2.55% |
| American Indian: | 19 | 3.73% |
| Hawaiian: | 0 | 0% |
| Other: | 0 | 0% |
| Total: | 510 | 100% |
| Gender | Count | % | Median Age |
|---|---|---|---|
| Males: | 451 | 97.83% | 45.3 years |
| Females: | 10 | 2.17% | 49.0 years |
| Total: | 461 | 100% | 45.4 years |
| Native, born in the United States: | 296 | 92.79% |
| Native, born in PR, Island Areas, or abroad: | 0 | 0.00% |
| Foreign born, naturalized U.S. citizen: | 18 | 5.64% |
| Foreign born, not a U.S. citizen: | 5 | 7.21% |
| Total Population: | 319 | 100% |
| Total Native Population: | 296 | 92.79% |
| Total Foreign-born Population: | 23 | 7.21% |
In 2024, the Median household income is $0, which is well under the national median ($80,734), 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 considerably lower than the national female median ($55,274), with a current gap of $0 that has narrowed from 2011 to 2024. The labor-force participation rate is 0.0%, which is markedly below the national rate (63.5%).
Explore More:Income Over TimeHousehold IncomeEmployment StatusBy Occupation
| Income Type | 2011 | 2012 | 2013 | 2014 | 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Median Household Income | $0 | $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 | $0 |
| Median NonFamily Income | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 |
| Median Male Income | $18,594 | $21,346 | $22,054 | $16,250 | $20,694 | $0 | $2,499 | $2,499 | $13,438 | $15,870 | $0 | $0 | $18,661 | $0 |
| Median Female Income | $0 | $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: | 319 | 100.00% |
| Total: | 319 | 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 2024, 1.60% of adults (25+) have a bachelor's degree or higher, which is far lower than the national rate (35.70%). High school or higher is 77.70%, which is far lower than the national rate (89.60%). The uninsured rate is -666,666,666.00%, which is far lower than the national rate (8.40%). Private coverage is -666,666,666.00%, which is far lower than the national rate (67.10%). Public coverage is -666,666,666.00%, which is far lower than the national rate (36.70%). The share of people in poverty is -666,666,666.00%, which is far lower than the national rate (8.80%). Poverty has been broadly stable, which may reflect structural barriers or offsetting gains and setbacks. Among residents ages 3+, the largest enrollment group is college (100.00%). College enrollment is 100.00%, which is far higher than the national rate (26.70%), indicating the community is likely a college hub with student-driven housing and services.
Explore More:Educational AttainmentHealth InsurancePoverty Over TimeSchool Enrollment
| Less than 9th grade: | 50 | 16.13% |
| 9th to 12th grade, no diploma: | 19 | 6.13% |
| High school graduate (includes equivalency): | 176 | 56.77% |
| Some college, no degree: | 60 | 19.35% |
| Associate's degree: | 0 | 0.00% |
| Bachelor's degree: | 0 | 0.00% |
| Graduate or professional degree: | 5 | 1.61% |
| Total: | 310 | 100% |
| High school or higher: | 241 | 77.74% |
| Bachelor's degree or higher: | 5 | 1.61% |
| 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 | 2024 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| % of People in Poverty | 0.0% | 0.0% | 0.0% | -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% | 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): | 0 | 0.00% |
| College or graduate school: | 14 | 100.00% |
| Total: | 14 | 100% |
| Early Childhood: | 0 | 0.00% |
| K-12 (Primary & Secondary School): | 0 | 0.00% |
ZIP Code 55814 is designated for PO Box delivery only; business establishment and employment data are not available.
| # Residential Mailboxes: | 0Source: USPS |
| # Business Mailboxes: | 0Source: USPS |
| Total Delivery Receptacles: | 15Source: USPS |
| Single Family Delivery Units: | 0Source: USPS |
| Multi Family Delivery Units: | 0Source: USPS |
| # of Businesses: | 0Source: CBP |
| 1st Quarter Payroll: | $0Source: CBP |
| Annual Payroll: | $0Source: CBP |
| # of Employees: | 0Source: CBP |
ZIP Code 55814 is located in Saint Louis County, Minnesota, within the Duluth, MN-WI Metropolitan Statistical Area (CBSA 20260) and Minnesota's 8th Congressional District. This Metro area has a population of 279,771 people, about 0.16% of whom live in ZIP Code 55814. It covers 0.078 sq mi of land and a water area of 0 sq mi.
| CBSA Name: | Duluth, MN-WISource: Census |
| CBSA Number: | 20260Source: Census |
| CBSA Type: | MetroSource: Census |
| CBSA Division: | --Source: Census |
| CBSA Population: | 279,771Source: Census |
| MSA: | Duluth-Superior, MN-WI MSASource: Census |
| Land Area: | 0.078 sq miSource: Census |
| Water Area: | --Source: Census |
| Congressional District: | 08Source: USPS |
| Congressional Land Area: | 27908.13 sq miSource: Census |
| PMSA: | --Source: Census |
| Intro Date: | < 2004-10Source: ZIP-Codes.com |
| Place FIPS Code: | 2717000Source: Census |
| Place Name: | Duluth city; MinnesotaSource: Census |
We could not locate which school district 55814 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.