50255 ZIP Code — Thornburg, IA
Keokuk County, Iowa
ZIP code 50255 is located in Thornburg, Iowa, within Keokuk County. It covers approximately 0.19 square miles and serves a population of 56 residents. This is a standard ZIP code in the Central (CT) timezone, served by area code 319.
56
population
0.19
sq mi land
Standard
ZIP type
Central (CT)
timezone
50255 ZIP code map
Cities in ZIP code 50255
Below are the cities the US Postal Service accepts for ZIP code 50255. Using any city not on this list may result in mail delivery delays.
| City | Status |
|---|---|
| Thornburg | Acceptable |
Demographics
updated 05/2026
| Population | |
|---|---|
| Total population | 56 |
| Population density | 295 / sq mi |
| State FIPS | 19 |
| County FIPS | 107 |
| Geography | |
|---|---|
| Land area | 0.19 sq mi |
| Water area | 0.00 sq mi |
| Latitude | 41.4554 |
| Longitude | -92.3354 |
| Timezone | Central (CT) |
| Area code | 319 |
Total population by age
Gender
Race & ethnicity
Economics
updated 05/2026
Household income
| Income range | This ZIP | County avg | State avg |
|---|---|---|---|
| Under $50k | 74.1% | 45.3% | 40.1% |
| $50k – $100k | 18.5% | 33.2% | 33.4% |
| $100k – $200k | 7.4% | 18.6% | 21.5% |
| Over $200k | 0.0% | 2.9% | 5.0% |
Demographics & statistics
56
Population
295
People per sq mi
60.0
Median age
$50,556
Median household income
$30,454
Per capita income
$22,000
Median home value
$0
Median monthly rent
100.0%
Home ownership
5.4%
Poverty rate
20.0%
Unemployment
30
Housing units
25.5%
Bachelor's or higher
Age distribution
Male
Female
1
10–14
0
2
15–19
1
3
20–24
2
1
25–34
1
2
35–44
1
5
45–54
5
2
55–59
2
4
60–64
4
10
65–74
10
← Male
Female →
Age summary
| Group | Count | % |
|---|---|---|
| Under 18 | 2 | 3.6% |
| 18 and over | 54 | 96.4% |
| 65 and over | 20 | 35.7% |
| Median age | 60.0 years | |
Race & ethnicity
White
100%
| Group | Count | % |
|---|---|---|
| White | 56 | 100% |
Household income
| Income range | This ZIP | County avg | State avg |
|---|---|---|---|
| Under $50k | 74.1% | 45.3% | 40.1% |
| $50k – $100k | 18.5% | 33.2% | 33.4% |
| $100k – $200k | 7.4% | 18.6% | 21.5% |
| Over $200k | 0.0% | 2.9% | 5.0% |
$10k–$15k
3.3%
$15k–$25k
3.3%
$35k–$50k
36.7%
$50k–$75k
33.3%
$75k–$100k
20.0%
$100k–$150k
3.3%
| Range | % of households |
|---|---|
| $10k–$15k | 3.3% |
| $15k–$25k | 3.3% |
| $35k–$50k | 36.7% |
| $50k–$75k | 33.3% |
| $75k–$100k | 20.0% |
| $100k–$150k | 3.3% |
| Median income | $50,556 |
Housing
Home values
Under $50k
83.3%
$50k–$100k
10.0%
$100k–$150k
6.7%
Housing overview
| Metric | Value |
|---|---|
| Median home value | $22,000 |
| Median rent / month | $0 |
| Owner occupied | 100.0% |
| Renter occupied | 0.0% |
| Vacant | 0.0% |
| Single-family detached | 100.0% |
| Large apartment buildings | 0.0% |
| Mobile homes | 0.0% |
| Median rooms | 6.7 |
| Avg household size (owned) | 1.87 |
Year built
| Era | % |
|---|---|
| 2020 or later | 0.0% |
| 2010–2019 | 0.0% |
| 2000–2009 | 0.0% |
| 1990–1999 | 0.0% |
| 1980–1989 | 0.0% |
| 1970–1979 | 13.3% |
| 1960–1969 | 0.0% |
| 1950–1959 | 0.0% |
| 1940–1949 | 0.0% |
| 1939 or earlier | 86.7% |
Bedrooms
| Size | % of units |
|---|---|
| No bedroom (studio) | 0.0% |
| 1 bedroom | 0.0% |
| 2 bedrooms | 3.3% |
| 3 bedrooms | 80.0% |
| 4 bedrooms | 13.3% |
| 5+ bedrooms | 3.3% |
Vehicles per household
| Vehicles | % of households |
|---|---|
| No vehicle | 0.0% |
| 1 vehicle | 33.3% |
| 2 vehicles | 16.7% |
| 3 or more | 50.0% |
Heating fuel
| Fuel type | % |
|---|---|
| Electricity | 10.0% |
| Propane / LP gas | 90.0% |
Households & families
| Household type | Count | % |
|---|---|---|
| Married-couple family | 17 | 56.7% |
| Cohabiting couple | 0 | 0.0% |
| Male householder, no spouse | 13 | 43.3% |
| Female householder, no spouse | 0 | 0.0% |
| Households with children under 18 | 1 | 3.3% |
| Households with seniors (65+) | 17 | 56.7% |
| Average household size | 1.87 | |
Marital status
| Status | Male | Female |
|---|---|---|
| Never married | 32.1% | 11.1% |
| Married | 53.6% | 81.5% |
| Separated | 0.0% | 7.4% |
| Widowed | 0.0% | 0.0% |
| Divorced | 14.3% | 0.0% |
Education
Less than 9th grade
0.0%
Some HS, no diploma
4.3%
HS graduate
42.6%
Some college, no degree
14.9%
Associate's degree
12.8%
Bachelor's degree
25.5%
Graduate / professional
0.0%
| Metric | % |
|---|---|
| HS diploma or higher | 95.7% |
| Bachelor's or higher | 25.5% |
School enrollment (ages 3–17)
| Type | Count | % |
|---|---|---|
| Nursery / preschool | 0 | 0.0% |
| Kindergarten | 0 | 0.0% |
| Elementary school | 0 | 0.0% |
| High school | 4 | 80.0% |
| College / grad school | 1 | 20.0% |
Employment
Industry of employment
Manufacturing
37.5%
Retail trade
20.8%
Education & healthcare
16.7%
Wholesale trade
8.3%
Transportation & utilities
8.3%
Professional & management
4.2%
Arts, food & hospitality
4.2%
Occupation
| Category | % |
|---|---|
| Management, business & arts | 4.2% |
| Service | 16.7% |
| Sales & office | 8.3% |
| Natural resources & construction | 0.0% |
| Production & transportation | 70.8% |
Employment type
| Type | % |
|---|---|
| Private sector | 100.0% |
| Government | 0.0% |
| Self-employed | 0.0% |
| Unpaid family workers | 0.0% |
Commute
| Method | % |
|---|---|
| Drive alone | 66.7% |
| Carpool | 33.3% |
| Public transit | 0.0% |
| Walk | 0.0% |
| Work from home | 0.0% |
| Other means | 0.0% |
| Avg commute (minutes) | 37.3 |
Poverty
All people
5.4%
Under 18 years
0.0%
18 and over
5.6%
Married-couple families
5.9%
Female-led households
0.0%
Income support
| Source | % of households |
|---|---|
| Social Security | 30.0% |
| Retirement income | 40.0% |
| Supplemental Security | 0.0% |
| Cash public assistance | 0.0% |
| Food stamps / SNAP | 0.0% |
Health indicators
| Condition | % |
|---|---|
| Obesity | 40.0% |
| High blood pressure | 39.1% |
| High cholesterol | 36.6% |
| Diabetes | 12.5% |
| Heart disease | 8.5% |
| Stroke | 4.0% |
| Asthma | 10.1% |
| Arthritis | 29.4% |
| Kidney disease | 3.5% |
| Pulmonary disease | 9.0% |
| Cancer | 7.7% |
| Behavior / access | % |
|---|---|
| Smoking | 20.0% |
| Binge drinking | 19.8% |
| No physical activity | 29.9% |
| Less than 7 hrs sleep | 32.4% |
| Depression | 19.0% |
| Fair or poor health | 16.3% |
| Poor mental health | 14.5% |
| Poor physical health | 12.0% |
| No health insurance | 10.0% |
| Visited doctor (checkup) | 76.9% |
| Visited dentist | 61.9% |
| Cholesterol screening | 88.6% |
| Teeth loss | 17.9% |
Veterans & disability
| Veterans | Count | % |
|---|---|---|
| Civilian veterans | 4 | 7.4% |
| Disability | % |
|---|---|
| Any disability | 8.9% |
| Under 18 | 0.0% |
| 18–64 years | 14.7% |
| 65 and over | 0.0% |
Health insurance coverage
| Type | % |
|---|---|
| Private insurance | 94.6% |
| Public insurance | 46.4% |
| No insurance | 0.0% |
| Uninsured under 19 | 0.0% |
Language & origin
Language spoken at home (age 5+)
| Language | Count | % |
|---|---|---|
| English only | 56 | 100.0% |
| Spanish | 0 | 0.0% |
| Other Indo-European | 0 | 0.0% |
| Asian & Pacific Islander | 0 | 0.0% |
| Other languages | 0 | 0.0% |
Place of birth & citizenship
| Origin | Count | % |
|---|---|---|
| Native born (US) | 56 | 100.0% |
| Born in same state | 56 | 100.0% |
| Born in different state | 50 | 89.3% |
| Foreign born | 0 | 0.0% |
| Naturalized citizen | 0 | 0.0% |
| Not a US citizen | 0 | 0.0% |
Ancestry
| Ancestry | Count | % |
|---|---|---|
| French | 10 | 17.9% |
| Arab | 8 | 14.3% |
| Italian | 4 | 7.1% |
| Ancestry | Count | % |
|---|---|---|
| English | 2 | 3.6% |
| Polish | 1 | 1.8% |
Technology access
| Metric | % of households |
|---|---|
| Computer access | 53.6% |
| Internet access | 83.3% |
Source: U.S. Census Bureau, American Community Survey 2025 estimates.
Frequently asked questions about ZIP code 50255
What city is ZIP code 50255 in?
ZIP code 50255 is primarily assigned to Thornburg, Iowa.
What county is ZIP code 50255 in?
ZIP code 50255 falls within Keokuk County, Iowa.
Does ZIP code 50255 have an older population?
36% of residents in ZIP code 50255 are 65 or older, above the national average of ~17%.
What is the typical home value in ZIP code 50255?
The median home value in ZIP code 50255 is $22,000.
What is the population of ZIP code 50255?
ZIP code 50255 has an estimated population of 56 residents, with a density of 293 people per square mile.
What is the median household income in ZIP code 50255?
The median household income in ZIP code 50255 is $50,556, below the national median of ~$75,000.
What timezone is ZIP code 50255 in?
ZIP code 50255 observes the CST timezone.