50231 ZIP Code — Randall, IA
Hamilton County, Iowa
ZIP code 50231 is located in Randall, Iowa, within Hamilton County. It covers approximately 0.45 square miles and serves a population of 157 residents. This is a standard ZIP code in the Central (CT) timezone, served by area code 515.
157
population
0.45
sq mi land
Standard
ZIP type
Central (CT)
timezone
50231 ZIP code map
Cities in ZIP code 50231
Below are the cities the US Postal Service accepts for ZIP code 50231. Using any city not on this list may result in mail delivery delays.
| City | Status |
|---|---|
| Randall | Acceptable |
Demographics
updated 05/2026
| Population | |
|---|---|
| Total population | 157 |
| Population density | 349 / sq mi |
| State FIPS | 19 |
| County FIPS | 079 |
| Geography | |
|---|---|
| Land area | 0.45 sq mi |
| Water area | 0.00 sq mi |
| Latitude | 42.2366 |
| Longitude | -93.6029 |
| Timezone | Central (CT) |
| Area code | 515 |
Total population by age
Gender
Race & ethnicity
Economics
updated 05/2026
Household income
| Income range | This ZIP | County avg | State avg |
|---|---|---|---|
| Under $50k | 30.1% | 41.0% | 40.1% |
| $50k – $100k | 49.3% | 38.7% | 33.4% |
| $100k – $200k | 20.5% | 17.3% | 21.5% |
| Over $200k | 0.0% | 2.9% | 5.0% |
Demographics & statistics
157
Population
349
People per sq mi
47.5
Median age
$63,750
Median household income
$30,350
Per capita income
$106,300
Median home value
$825
Median monthly rent
88.9%
Home ownership
6.4%
Poverty rate
8.6%
Unemployment
66
Housing units
26.3%
Bachelor's or higher
Age distribution
Male
Female
2
Under 5
3
4
5–9
4
2
10–14
2
12
15–19
14
8
25–34
9
6
35–44
7
5
45–54
6
11
55–59
12
8
60–64
9
9
65–74
10
6
75–84
6
1
85+
1
← Male
Female →
Age summary
| Group | Count | % |
|---|---|---|
| Under 18 | 27 | 17.2% |
| 18 and over | 130 | 82.8% |
| 65 and over | 33 | 21.0% |
| Median age | 47.5 years | |
Race & ethnicity
White
96.8%
Asian
1.9%
Hispanic or Latino
0.6%
Other race
0.6%
| Group | Count | % |
|---|---|---|
| White | 153 | 96.8% |
| Asian | 3 | 1.9% |
| Hispanic or Latino | 1 | 0.6% |
| Other race | 1 | 0.6% |
Household income
| Income range | This ZIP | County avg | State avg |
|---|---|---|---|
| Under $50k | 30.1% | 41.0% | 40.1% |
| $50k – $100k | 49.3% | 38.7% | 33.4% |
| $100k – $200k | 20.5% | 17.3% | 21.5% |
| Over $200k | 0.0% | 2.9% | 5.0% |
Under $10k
3.2%
$10k–$15k
11.1%
$15k–$25k
1.6%
$25k–$35k
4.8%
$35k–$50k
12.7%
$50k–$75k
31.7%
$75k–$100k
6.3%
$100k–$150k
22.2%
$150k–$200k
6.3%
| Range | % of households |
|---|---|
| Under $10k | 3.2% |
| $10k–$15k | 11.1% |
| $15k–$25k | 1.6% |
| $25k–$35k | 4.8% |
| $35k–$50k | 12.7% |
| $50k–$75k | 31.7% |
| $75k–$100k | 6.3% |
| $100k–$150k | 22.2% |
| $150k–$200k | 6.3% |
| Median income | $63,750 |
Housing
Home values
Under $50k
5.4%
$50k–$100k
37.5%
$100k–$150k
41.1%
$150k–$200k
8.9%
$200k–$300k
7.1%
Housing overview
| Metric | Value |
|---|---|
| Median home value | $106,300 |
| Median rent / month | $825 |
| Owner occupied | 88.9% |
| Renter occupied | 11.1% |
| Vacant | 13.7% |
| Single-family detached | 94.5% |
| Large apartment buildings | 0.0% |
| Mobile homes | 5.5% |
| Median rooms | 6.7 |
| Avg household size (owned) | 2.59 |
Year built
| Era | % |
|---|---|
| 2020 or later | 0.0% |
| 2010–2019 | 0.0% |
| 2000–2009 | 11.0% |
| 1990–1999 | 2.7% |
| 1980–1989 | 2.7% |
| 1970–1979 | 8.2% |
| 1960–1969 | 12.3% |
| 1950–1959 | 16.4% |
| 1940–1949 | 0.0% |
| 1939 or earlier | 46.6% |
Bedrooms
| Size | % of units |
|---|---|
| No bedroom (studio) | 0.0% |
| 1 bedroom | 1.4% |
| 2 bedrooms | 24.7% |
| 3 bedrooms | 56.2% |
| 4 bedrooms | 15.1% |
| 5+ bedrooms | 2.7% |
Vehicles per household
| Vehicles | % of households |
|---|---|
| No vehicle | 0.0% |
| 1 vehicle | 23.8% |
| 2 vehicles | 34.9% |
| 3 or more | 41.3% |
Heating fuel
| Fuel type | % |
|---|---|
| Utility gas | 81.0% |
| Electricity | 17.5% |
| Propane / LP gas | 1.6% |
Households & families
| Household type | Count | % |
|---|---|---|
| Married-couple family | 39 | 61.9% |
| Cohabiting couple | 1 | 1.6% |
| Male householder, no spouse | 16 | 25.4% |
| Female householder, no spouse | 7 | 11.1% |
| Households with children under 18 | 10 | 15.9% |
| Households with seniors (65+) | 18 | 28.6% |
| Average household size | 2.49 | |
Marital status
| Status | Male | Female |
|---|---|---|
| Never married | 28.6% | 24.3% |
| Married | 58.6% | 64.3% |
| Separated | 0.0% | 0.0% |
| Widowed | 1.4% | 4.3% |
| Divorced | 11.4% | 7.1% |
Education
Less than 9th grade
0.0%
Some HS, no diploma
0.9%
HS graduate
36.0%
Some college, no degree
21.9%
Associate's degree
14.9%
Bachelor's degree
17.5%
Graduate / professional
8.8%
| Metric | % |
|---|---|
| HS diploma or higher | 99.1% |
| Bachelor's or higher | 26.3% |
School enrollment (ages 3–17)
| Type | Count | % |
|---|---|---|
| Nursery / preschool | 1 | 2.6% |
| Kindergarten | 0 | 0.0% |
| Elementary school | 10 | 25.6% |
| High school | 20 | 51.3% |
| College / grad school | 8 | 20.5% |
Employment
Industry of employment
Manufacturing
27.0%
Education & healthcare
21.6%
Public administration
14.9%
Other services
13.5%
Retail trade
9.5%
Construction
8.1%
Agriculture & mining
2.7%
Professional & management
1.4%
Arts, food & hospitality
1.4%
Occupation
| Category | % |
|---|---|
| Management, business & arts | 31.1% |
| Service | 13.5% |
| Sales & office | 25.7% |
| Natural resources & construction | 5.4% |
| Production & transportation | 24.3% |
Employment type
| Type | % |
|---|---|
| Private sector | 71.6% |
| Government | 20.3% |
| Self-employed | 8.1% |
| Unpaid family workers | 0.0% |
Commute
| Method | % |
|---|---|
| Drive alone | 78.4% |
| Carpool | 6.8% |
| Public transit | 0.0% |
| Walk | 0.0% |
| Work from home | 14.9% |
| Other means | 0.0% |
| Avg commute (minutes) | 28.2 |
Poverty
All people
6.4%
Under 18 years
0.0%
18 and over
7.7%
Married-couple families
0.0%
Female-led households
0.0%
Income support
| Source | % of households |
|---|---|
| Social Security | 38.1% |
| Retirement income | 30.2% |
| Supplemental Security | 0.0% |
| Cash public assistance | 0.0% |
| Food stamps / SNAP | 6.3% |
Health indicators
| Condition | % |
|---|---|
| Obesity | 37.9% |
| High blood pressure | 32.5% |
| High cholesterol | 33.8% |
| Diabetes | 9.3% |
| Heart disease | 6.2% |
| Stroke | 2.7% |
| Asthma | 9.1% |
| Arthritis | 24.1% |
| Kidney disease | 2.7% |
| Pulmonary disease | 6.0% |
| Cancer | 7.2% |
| Behavior / access | % |
|---|---|
| Smoking | 15.9% |
| Binge drinking | 22.6% |
| No physical activity | 21.7% |
| Less than 7 hrs sleep | 29.1% |
| Depression | 17.0% |
| Fair or poor health | 10.9% |
| Poor mental health | 12.5% |
| Poor physical health | 8.8% |
| No health insurance | 7.9% |
| Visited doctor (checkup) | 75.9% |
| Visited dentist | 68.3% |
| Cholesterol screening | 90.2% |
| Teeth loss | 10.1% |
Veterans & disability
| Veterans | Count | % |
|---|---|---|
| Civilian veterans | 9 | 6.9% |
| Disability | % |
|---|---|
| Any disability | 11.5% |
| Under 18 | 7.4% |
| 18–64 years | 12.4% |
| 65 and over | 12.1% |
Health insurance coverage
| Type | % |
|---|---|
| Private insurance | 89.2% |
| Public insurance | 28.7% |
| No insurance | 1.3% |
| Uninsured under 19 | 0.0% |
Language & origin
Language spoken at home (age 5+)
| Language | Count | % |
|---|---|---|
| English only | 152 | 96.8% |
| 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) | 154 | 98.1% |
| Born in same state | 154 | 98.1% |
| Born in different state | 107 | 68.2% |
| Foreign born | 0 | 0.0% |
| Naturalized citizen | 3 | 1.9% |
| Not a US citizen | 0 | 0.0% |
Ancestry
| Ancestry | Count | % |
|---|---|---|
| Polish | 30 | 19.1% |
| Arab | 17 | 10.8% |
| French | 14 | 8.9% |
| Ancestry | Count | % |
|---|---|---|
| Italian | 13 | 8.3% |
| Dutch | 1 | 0.6% |
Technology access
| Metric | % of households |
|---|---|
| Computer access | 40.1% |
| Internet access | 95.2% |
Source: U.S. Census Bureau, American Community Survey 2025 estimates.
Frequently asked questions about ZIP code 50231
What city is ZIP code 50231 in?
ZIP code 50231 is primarily assigned to Randall, Iowa.
What county is ZIP code 50231 in?
ZIP code 50231 falls within Hamilton County, Iowa.
Is ZIP code 50231 mostly owner-occupied?
89% of occupied units in ZIP code 50231 are owner-occupied, well above the national average.
Does ZIP code 50231 have a large retiree population?
38% of households in ZIP code 50231 receive Social Security income, suggesting a significant retiree or disability population.
What is the typical home value in ZIP code 50231?
The median home value in ZIP code 50231 is $106,300.
What is the population of ZIP code 50231?
ZIP code 50231 has an estimated population of 157 residents, with a density of 351 people per square mile.
What timezone is ZIP code 50231 in?
ZIP code 50231 observes the CST timezone.