| City: | Troy Mills, Iowa |
| County: | Linn County |
| Timezone: | Central (GMT -06:00) |
| Local Time: | 8:06:55 PM |
| Population: | 22 [See All] |
| Area Code: | 319 |
| Classification: | PO Box |
| Coordinates: | 42.2901, -91.6896 |
| Land Area: | 0.009 sq mi |
| Quick Link: |
The post office maintains 72 PO Boxes for just 16 local households. That's an adoption rate of 4.5, meaning the facility serves roughly four to five times as many boxes as there are households in the immediate area. This high ratio reflects regional service to surrounding rural properties in northeastern Iowa that don't have carrier delivery options. Residents from nearby farms and homesteads travel to Troy Mills for mail service because their properties lie outside postal delivery routes.
Carrier service here follows rural patterns. One rural route serves the handful of street addresses that exist, primarily along Troy Mills Road and Main Street. The ZIP includes 0.009 square miles of land area, essentially just the post office and its immediate surroundings. This is one of Iowa's smallest geographic ZIP codes by land area.
The median household income is $33,793, based on area-level estimates. The population is entirely white and non-Hispanic. At a median age of 18.0 years, this appears to be a statistical anomaly reflecting the extremely small sample size. With only 22 people counted in the 2020 Census, individual demographic variations produce unusual median values that don't represent typical community characteristics.
The two street names reflect a minimal rural crossroads: Troy Mills Road (the community's namesake thoroughfare) and Main Street. This sparse street network confirms Troy Mills as an unincorporated hamlet rather than a platted town, with the post office serving as the primary community anchor for a wider rural area.
ZIP Code 52344 has 22 residents and 16 households (average 1.38 persons per household). The median age is 18.0 years, significantly younger than the state (38.6) and significantly younger than the nation (38.8). The gender split is 22.7% male and 77.3% female, which is much lower than the state male share (49.7%), making this a female-majority area. Largest groups are White (100.0%, much higher than the state average of 84.5% and well above the national average of 61.6%) and Black or African American (0.0%, much lower than the national average of 12.4%); Hispanic or Latino residents make up 0.0%, which is much lower than the national average (18.7%).
Explore More:Population Over TimeBy Age & GenderBy RaceBy GenderNativity & Citizenship
| 2020 Population: | 22Source: Census DHC |
| 2024 ACS Population Estimate: | 70Source: Census ACS |
| 2026 ZC Population Estimate: | 0Source: ZIP-Codes.com |
| Population Density: | 2,444.4 people per sq mile |
| Average Income: | $0Source: Census ACS |
| Households: | 16Source: Census DHC |
| Average House Value: | $0Source: Census ACS |
| Persons Per Household: | 1.38Source: Census DHC |
| Average Family Size: | 1.11Source: Census ACS |
| Group | 2010 | 2011 | 2102 | 2013 | 2014 | 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Census ACS Population Estimate | -- | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 42 | 100 | 70 |
| Decennial Census | 0 | -- | -- | -- | -- | -- | -- | -- | -- | -- | 22 | -- | -- | -- |
Median Age: 18
Male Median Age: 28.5
Female Median Age: 16.5
| 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 | 1 | 0 | 1 | 0 | 2 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| Female | 0 | 3 | 4 | 4 | 0 | 0 | 0 | 0 | 4 | 0 | 0 | 0 | 0 | 2 | 0 | 0 | 0 | 0 |
| Total | 0 | 4 | 4 | 5 | 0 | 2 | 1 | 0 | 4 | 0 | 0 | 0 | 0 | 2 | 0 | 0 | 0 | 0 |
| White: | 22 | 100.00% |
| Black: | 0 | 0% |
| Hispanic:* | 0 | 0% |
| Asian: | 0 | 0% |
| American Indian: | 0 | 0% |
| Hawaiian: | 0 | 0% |
| Other: | 0 | 0% |
| Total: | 22 | 100% |
| Gender | Count | % | Median Age |
|---|---|---|---|
| Males: | 5 | 22.73% | 28.5 years |
| Females: | 17 | 77.27% | 16.5 years |
| Total: | 22 | 100% | 18.0 years |
| Native, born in the United States: | 70 | 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: | 70 | 100% |
| Total Native Population: | 70 | 100.00% |
| Total Foreign-born Population: | 0 | 0.00% |
In 2023, the Median household income is $0, which is far less than the state median ($73,147), 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 ($49,410), with a current gap of $0 that has stayed about the same from 2011 to 2023. The labor-force participation rate is 50.0%, which is much lower than the state rate (66.5%). The unemployment rate is 0.0%, which is markedly below the national rate (5.2%). The largest occupation group is Sales (51.4%).
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 | $0 | $0 | $0 | $0 |
| Median Female Income | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 |
| Employed: | 35 | 50.00% |
| Unemployed: | 0 | 0.00% |
| Not In Labor Force: | 35 | 50.00% |
| Total: | 70 | 100% |
| Management, business, science, and arts: | 0 | 0.00% |
| Service: | 0 | 0.00% |
| Sales and Office: | 18 | 51.43% |
| Natural resources, construction, and maintenance: | 0 | 0.00% |
| Production, transportation, and material moving: | 17 | 48.57% |
| Total Civilian Employed Population: | 35 | 100% |
In 2023, the median home value is $0, which is considerably lower than the state median ($195,900), and above its 2019 pre-pandemic level by $0. The median gross rent is $0, which is far less than the state median ($949), and above its 2019 pre-pandemic level by $0. Of occupied housing, owners make up 33.96% (100.00% with a mortgage, 0.00% free-and-clear) and renters 66.04% - making this ZIP Code less home ownership than the state and higher than national rental averages. Insufficient data for vacancy rate.
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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Median Home Value | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 |
| Less than $500: | 0 | 0.00% |
| $500 to $999: | 35 | 100.00% |
| $1,000 to $1,499: | 0 | 0.00% |
| $1,500 to $1,999: | 0 | 0.00% |
| $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: | 35 | 100% |
| Group | 2011 | 2102 | 2013 | 2014 | 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Median Rent | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 |
| Owner Occupied (with mortgage): | 18 | 33.96% |
| Owner Occupied (free and clear, no mortgage): | 0 | 0.00% |
| Renter Occupied: | 35 | 66.04% |
| Total Occupied Housing Units: | 53 | 100% |
| Occupied Housing Units: | 53 | 100.00% |
| Vacant Housing Units (not graphed): | 0 | 0.00% |
| Total Housing Units: | 53 | 100% |
| Single-Family Units: | 18 | 33.96% |
| Multi-Family Units: | 35 | 66.04% |
| Other Units: | 0 | 0.00% |
| Total Housing Units: | 53 | 100% |
In 2023, 12.90% of adults (25+) have a bachelor's degree or higher, which is comparable to the national rate (35.00%). High school or higher is 100.00%, which is comparable to the national rate (89.40%). The uninsured rate is 0.00%, which is comparable to the national rate (8.60%). Private coverage is 100.00%, which is well above the national rate (67.30%). The share of people in poverty is 0.00%, which is comparable to the national rate (8.70%). Poverty has been broadly stable, which may reflect structural barriers or offsetting gains and setbacks. Insufficient data for school enrollment.
Explore More:Educational AttainmentHealth InsurancePoverty Over TimeSchool Enrollment
| Less than 9th grade: | 0 | 0.00% |
| 9th to 12th grade, no diploma: | 0 | 0.00% |
| High school graduate (includes equivalency): | 43 | 61.43% |
| Some college, no degree: | 18 | 25.71% |
| Associate's degree: | 0 | 0.00% |
| Bachelor's degree: | 0 | 0.00% |
| Graduate or professional degree: | 9 | 12.86% |
| Total: | 70 | 100% |
| High school or higher: | 70 | 100.00% |
| Bachelor's degree or higher: | 9 | 12.86% |
| Private Insurance: | 70 | 66.67% |
| Public Insurance: | 35 | 33.33% |
| No Insurance: | 0 | 0.00% |
| Total: | 105 | 100% |
| Has Health Insurance: | 105 | 100.00% |
| Group | 2011 | 2102 | 2013 | 2014 | 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| % of People in Poverty | 0.0% | 0.0% | 0.0% | 0.0% | 0.0% | 0.0% | 0.0% | 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% |
| Kindergarten: | 0 | 0% |
| Elementary school (grades 1-8): | 0 | 0% |
| High school (grades 9-12): | 0 | 0% |
| College or graduate school: | 0 | 0% |
| Total: | 0 | 100% |
| Early Childhood: | 0 | 0% |
| K-12 (Primary & Secondary School): | 0 | 0% |
ZIP Code 52344 supports both business and residential activity. According to the Business Census (2024), there are 3 business establishments, employing about 23 people with an annual payroll of $318,000.
| # Residential Mailboxes: | 0Source: USPS |
| # Business Mailboxes: | 0Source: USPS |
| Total Delivery Receptacles: | 248Source: USPS |
| Single Family Delivery Units: | 0Source: USPS |
| Multi Family Delivery Units: | 0Source: USPS |
| # of Businesses: | 3Source: CBP |
| 1st Quarter Payroll: | $82,000Source: CBP |
| Annual Payroll: | $318,000Source: CBP |
| # of Employees: | 23Source: CBP |
ZIP Code 52344 is located in Linn County, Iowa, within the Cedar Rapids, IA Metropolitan Statistical Area (CBSA 16300) and Iowa's 2nd Congressional District. This Metro area has a population of 275,960 people, about 0.01% of whom live in ZIP Code 52344. It covers 0.009 sq mi of land and a water area of 0 sq mi.
| CBSA Name: | Cedar Rapids, IASource: Census |
| CBSA Number: | 16300Source: Census |
| CBSA Type: | MetroSource: Census |
| CBSA Division: | --Source: Census |
| CBSA Population: | 275,960Source: Census |
| MSA: | Cedar Rapids, IA MSASource: Census |
| Land Area: | 0.009 sq miSource: Census |
| Water Area: | --Source: 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: | --Source: Census |
| Place Name: | --Source: Census |
ZIP Code 52344 is in the North Linn Community School District, which serves grades Pre-Kindergarten thru 12th. There are 3 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.