| City: | Frederika, Iowa |
| County: | Bremer County |
| Timezone: | Central (GMT -06:00) |
| Local Time: | 7:13:19 AM |
| Population: | 178 [See All] |
| Area Code: | 319 |
| Classification: | PO Box |
| Coordinates: | 42.8812, -92.3031 |
| Land Area: | 0.185 sq mi |
| Quick Link: |
The town spans just 0.42 square miles in Bremer County, Iowa. Streets follow a numbered grid pattern common to Midwest small towns: 1st through 5th Streets running one direction, 1st through 4th Avenues crossing them. Most delivery addresses (40 of 56 ZIP+4 records) are rural route stops rather than in-town street addresses. Median household income stands at $47,813, with a median home value of $100,500.
The numbered grid of streets and avenues reflects classic Midwest small-town planning, with most actual mail delivery happening on the single rural carrier route serving addresses outside the town center.
ZIP Code 50631 has 178 residents and 83 households (average 2.14 persons per household). The median age is 47.0 years, significantly older than the state (38.6) and significantly older than the nation (38.8). The gender split is 51.7% male and 48.3% female, which is slightly higher than the national male share (49.1%), making this a male-majority area. Largest groups are White (97.2%, much higher than the state average of 84.5% and well above the national average of 61.6%) and Hispanic or Latino (0.6%); Hispanic or Latino residents make up 0.6%, which is much lower than the national average (18.7%).
Explore More:Population Over TimeBy Age & GenderBy RaceBy GenderNativity & Citizenship
| 2020 Population: | 178Source: Census DHC |
| 2024 ACS Population Estimate: | 225Source: Census ACS |
| 2026 ZC Population Estimate: | 0Source: ZIP-Codes.com |
| Population Density: | 962.2 people per sq mile |
| Average Income: | $58,750Source: Census ACS |
| Households: | 83Source: Census DHC |
| Average House Value: | $98,800Source: Census ACS |
| Persons Per Household: | 2.14Source: Census DHC |
| Average Family Size: | 3.24Source: Census ACS |
| Group | 2010 | 2011 | 2102 | 2013 | 2014 | 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Census ACS Population Estimate | -- | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 238 | 250 | 198 | 225 |
| Decennial Census | 0 | -- | -- | -- | -- | -- | -- | -- | -- | -- | 178 | -- | -- | -- | -- |
Median Age: 47
Male Median Age: 45.5
Female Median Age: 47.3
| 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 | 7 | 3 | 4 | 9 | 2 | 4 | 7 | 3 | 7 | 4 | 8 | 7 | 10 | 3 | 6 | 1 | 3 | 4 |
| Female | 7 | 5 | 3 | 5 | 1 | 5 | 3 | 9 | 4 | 4 | 2 | 6 | 5 | 6 | 3 | 8 | 3 | 7 |
| Total | 14 | 8 | 7 | 14 | 3 | 9 | 10 | 12 | 11 | 8 | 10 | 13 | 15 | 9 | 9 | 9 | 6 | 11 |
| White: | 173 | 99.43% |
| Black: | 0 | 0% |
| Hispanic:* | 1 | 0.57% |
| Asian: | 0 | 0% |
| American Indian: | 0 | 0% |
| Hawaiian: | 0 | 0% |
| Other: | 0 | 0% |
| Total: | 174 | 100% |
| Gender | Count | % | Median Age |
|---|---|---|---|
| Males: | 92 | 51.69% | 45.5 years |
| Females: | 86 | 48.31% | 47.3 years |
| Total: | 178 | 100% | 47.0 years |
| Native, born in the United States: | 225 | 100.00% |
| Native, born in PR, Island Areas, or abroad: | 0 | 0.00% |
| Foreign born, naturalized U.S. citizen: | 0 | 0.00% |
| Foreign born, not a U.S. citizen: | 0 | 0.00% |
| Total Population: | 225 | 100% |
| Total Native Population: | 225 | 100.00% |
| Total Foreign-born Population: | 0 | 0.00% |
In 2024, the Median household income is $58,750, which is far less than the national median ($80,734), and above its 2019 pre-pandemic level by $58,750. Family households earn a median of $72,188 versus $0 for nonfamily households (a difference of $72,188). By gender, male median income is $46,667 and female is $43,750, which is much lower than the national female median ($55,274), with a current gap of $2,917 that has widened from 2011 to 2024. The labor-force participation rate is 75.4%, which is far greater than the national rate (63.5%). The unemployment rate is 6.1%, which is above the national rate (5.2%). The largest occupation group is Management (37.1%).
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 | $40,750 | $45,625 | $47,813 | $58,750 |
| Median Family Income | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $42,000 | $54,063 | $61,250 | $72,188 |
| Median NonFamily Income | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $29,286 | $31,333 | $28,125 | $0 |
| Median Male Income | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $34,821 | $45,208 | $48,500 | $46,667 |
| Median Female Income | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $20,000 | $23,750 | $0 | $43,750 |
| Employed: | 124 | 70.86% |
| Unemployed: | 8 | 4.57% |
| Not In Labor Force: | 43 | 24.57% |
| Total: | 175 | 100% |
| Management, business, science, and arts: | 46 | 37.10% |
| Service: | 19 | 15.32% |
| Sales and Office: | 17 | 13.71% |
| Natural resources, construction, and maintenance: | 26 | 20.97% |
| Production, transportation, and material moving: | 16 | 12.90% |
| Total Civilian Employed Population: | 124 | 100% |
In 2024, the median home value is $98,800, which is well under the national median ($332,700), and above its 2019 pre-pandemic level by $98,800. The median gross rent is $667, which is well under the national median ($1,413), and above its 2019 pre-pandemic level by $667. Of occupied housing, owners make up 83.72% (68.06% with a mortgage, 31.94% free-and-clear) and renters 16.28% - making this ZIP Code under national rental averages. The vacancy rate is 29.51%, which is much higher than the national rate (10.12%).
Explore More:Compare Home ValueHome Value Over TimeRent & Over TimeHousing Occupancy
| Group | 2011 | 2102 | 2013 | 2014 | 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Median Home Value | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $82,100 | $90,300 | $100,500 | $98,800 |
| Less than $500: | 3 | 21.43% |
| $500 to $999: | 6 | 42.86% |
| $1,000 to $1,499: | 4 | 28.57% |
| $1,500 to $1,999: | 1 | 7.14% |
| $2,000 to $2,499: | 0 | 0.00% |
| $2,500 to $2,999: | 0 | 0.00% |
| $3,000 or more: | 0 | 0.00% |
| No Rent: | 0 | 0.00% |
| Total: | 14 | 100% |
| Group | 2011 | 2102 | 2013 | 2014 | 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Median Rent | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $588 | $616 | $0 | $667 |
| Owner Occupied (with mortgage): | 49 | 56.98% |
| Owner Occupied (free and clear, no mortgage): | 23 | 26.74% |
| Renter Occupied: | 14 | 16.28% |
| Total Occupied Housing Units: | 86 | 100% |
| Occupied Housing Units: | 86 | 70.49% |
| Vacant Housing Units (not graphed): | 36 | 29.51% |
| Total Housing Units: | 122 | 100% |
| Single-Family Units: | 115 | 94.26% |
| Multi-Family Units: | 7 | 5.74% |
| Other Units: | 0 | 0.00% |
| Total Housing Units: | 122 | 100% |
In 2024, 12.80% 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 93.20%, which is comparable to the national rate (89.60%). The uninsured rate is 6.70%, which is comparable to the national rate (8.40%). The share of people in poverty is 9.80%, which is comparable to the national rate (8.80%), up 10.90 percentage points since 2011 and above its 2019 pre-pandemic level by 10.90 percentage points. This signals a sharp increase in hardship - a shrinking consumer base, heavy pressure on public services, and job-market contraction risks. Among residents ages 3+, the largest enrollment group is elementary (48.28%). College enrollment is 0.00%, which is comparable to the national rate (26.70%), meaning the community mirrors broader higher-education participation.
Explore More:Educational AttainmentHealth InsurancePoverty Over TimeSchool Enrollment
| Less than 9th grade: | 3 | 2.03% |
| 9th to 12th grade, no diploma: | 7 | 4.73% |
| High school graduate (includes equivalency): | 40 | 27.03% |
| Some college, no degree: | 48 | 32.43% |
| Associate's degree: | 31 | 20.95% |
| Bachelor's degree: | 16 | 10.81% |
| Graduate or professional degree: | 3 | 2.03% |
| Total: | 148 | 100% |
| High school or higher: | 138 | 93.24% |
| Bachelor's degree or higher: | 19 | 12.84% |
| Private Insurance: | 146 | 61.09% |
| Public Insurance: | 78 | 32.64% |
| No Insurance: | 15 | 6.28% |
| Total: | 239 | 100% |
| Has Health Insurance: | 224 | 93.72% |
| 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% | 0.0% | 0.0% | 0.0% | 0.0% | 0.0% | 0.0% | 0.0% | 23.4% | 7.7% | 10.9% | 9.8% |
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: | 9 | 31.03% |
| Kindergarten: | 0 | 0.00% |
| Elementary school (grades 1-8): | 14 | 48.28% |
| High school (grades 9-12): | 6 | 20.69% |
| College or graduate school: | 0 | 0.00% |
| Total: | 29 | 100% |
| Early Childhood: | 9 | 31.03% |
| K-12 (Primary & Secondary School): | 20 | 68.97% |
ZIP Code 50631 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: | 125Source: 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 50631 is located in Bremer County, Iowa, within the Waterloo-Cedar Falls, IA Metropolitan Statistical Area (CBSA 47940) and Iowa's 2nd Congressional District. This Metro area has a population of 167,819 people, about 0.11% of whom live in ZIP Code 50631. It covers 0.185 sq mi of land and a water area of 0.085 sq mi.
| CBSA Name: | Waterloo-Cedar Falls, IASource: Census |
| CBSA Number: | 47940Source: Census |
| CBSA Type: | MetroSource: Census |
| CBSA Division: | --Source: Census |
| CBSA Population: | 167,819Source: Census |
| MSA: | Source: Census |
| Land Area: | 0.185 sq miSource: Census |
| Water Area: | 0.085 sq miSource: Census |
| Congressional District: | 02Source: USPS |
| Congressional Land Area: | 12261.92 sq miSource: Census |
| PMSA: | Source: Census |
| Intro Date: | < 2004-10Source: ZIP-Codes.com |
| Place FIPS Code: | 1929010Source: Census |
| Place Name: | Frederika city; IowaSource: Census |
We could not locate which school district 50631 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.