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Iowa ZIP Codes
Louisa County
Columbus Junction, IA
52738
52738 ZIP Code — Columbus Junction, IA
Louisa County, Iowa
ZIP code 52738 is located in
Columbus Junction ,
Iowa ,
within Louisa County .
It covers approximately 122.54 square miles and serves a population of
3,389 residents.
This is a standard ZIP code in the Central (CT) timezone,
served by area code 319 .
About ZIP code 52738
The housing stock consists of predominantly single-family detached homes. Most homes were built in the pre-1940, giving the area an established character. Median home value is $134,900. Owner-occupancy is high at 77%, well above the national average.
Median household income is $74,043. 37% of households receive Social Security income, suggesting a notable retiree or disability population.
The dominant occupation class is production, transportation, and material moving, with manufacturing as the leading industry. The average commute of 22 minutes is near the national average.
College attainment at 20% is below the national average, consistent with a trades and production-oriented local economy.
Overall, ZIP code 52738 reflects a community defined by a trades-oriented workforce, high homeownership, and a significant Social Security-dependent population.
52738 ZIP code map
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Cities in ZIP code 52738
Below are the cities the US Postal Service accepts for ZIP code 52738. Using any city not on this list may result in mail delivery delays.
Nearby ZIP codes
Demographics
updated 05/2026
Population
Total population
3,389
Population density
28 / sq mi
State FIPS
19
County FIPS
115
Geography
Land area
122.54 sq mi
Water area
1.82 sq mi
Latitude
41.3000
Longitude
-91.3416
Timezone
Central (CT)
Area code
319
Economics
updated 05/2026
Household income
Income range
This ZIP
County avg
State avg
Under $50k
46.2%
39.2%
40.1%
$50k – $100k
37.5%
36.2%
33.4%
$100k – $200k
11.8%
20.8%
21.5%
Over $200k
4.4%
3.8%
5.0%
Demographics & statistics
$74,043
Median household income
$134,900
Median home value
19.5%
Bachelor's or higher
Age distribution
Age summary
Group Count % Under 18 863 25.5% 18 and over 2,526 74.5% 65 and over 564 16.6% Median age 36.3 years
Race & ethnicity
Black or African American
1.3%
American Indian / Alaska Native
0.2%
Group Count % White 2,237 53.7% Hispanic or Latino 775 18.6% Other race 652 15.7% Two or more races 220 5.3% Asian 217 5.2% Black or African American 55 1.3% American Indian / Alaska Native 8 0.2%
Household income
Income range
This ZIP
County avg
State avg
Under $50k
46.2%
39.2%
40.1%
$50k – $100k
37.5%
36.2%
33.4%
$100k – $200k
11.8%
20.8%
21.5%
Over $200k
4.4%
3.8%
5.0%
Range % of households Under $10k 6.2% $10k–$15k 2.6% $15k–$25k 7.3% $25k–$35k 7.0% $35k–$50k 11.0% $50k–$75k 17.6% $75k–$100k 21.1% $100k–$150k 15.7% $150k–$200k 4.2% $200k+ 7.4% Median income $74,043
Housing
Housing overview
Metric Value Median home value $134,900 Median rent / month $575 Owner occupied 76.9% Renter occupied 23.1% Vacant 16.9% Single-family detached 77.1% Large apartment buildings 1.3% Mobile homes 9.0% Median rooms 5.8 Avg household size (owned) 3.02
Year built
Era % 2020 or later 0.0% 2010–2019 4.3% 2000–2009 6.4% 1990–1999 9.3% 1980–1989 9.8% 1970–1979 9.6% 1960–1969 17.2% 1950–1959 3.5% 1940–1949 7.0% 1939 or earlier 33.0%
Bedrooms
Size % of units No bedroom (studio) 1.0% 1 bedroom 11.2% 2 bedrooms 24.8% 3 bedrooms 42.9% 4 bedrooms 15.3% 5+ bedrooms 4.8%
Vehicles per household
Vehicles % of households No vehicle 5.8% 1 vehicle 21.7% 2 vehicles 38.6% 3 or more 33.8%
Heating fuel
Fuel type % Utility gas 41.7% Electricity 23.4% Propane / LP gas 30.7% Fuel oil 0.1% Wood 2.5% No fuel used 1.7%
Households & families
Household type Count % Married-couple family 752 66.4% Cohabiting couple 25 2.2% Male householder, no spouse 135 11.9% Female householder, no spouse 220 19.4% Households with children under 18 383 33.8% Households with seniors (65+) 421 37.2% Average household size 2.96
Marital status
Status Male Female Never married 30.1% 13.4% Married 63.7% 67.6% Separated 0.0% 1.0% Widowed 0.8% 10.1% Divorced 5.4% 7.9%
Education
Less than 9th grade
10.1%
Some HS, no diploma
12.2%
Some college, no degree
16.6%
Graduate / professional
4.1%
Metric % HS diploma or higher 77.7% Bachelor's or higher 19.5%
School enrollment (ages 3–17)
Type Count % Nursery / preschool 66 10.2% Kindergarten 49 7.6% Elementary school 295 45.5% High school 136 21.0% College / grad school 102 15.7%
Employment
Industry of employment
Education & healthcare
13.1%
Agriculture & mining
10.6%
Arts, food & hospitality
5.8%
Finance & real estate
4.1%
Transportation & utilities
3.8%
Professional & management
3.8%
Public administration
2.3%
Occupation
Category % Management, business & arts 21.9% Service 11.7% Sales & office 16.0% Natural resources & construction 16.6% Production & transportation 33.7%
Employment type
Type % Private sector 83.2% Government 11.6% Self-employed 5.1% Unpaid family workers 0.1%
Commute
Method % Drive alone 73.1% Carpool 16.7% Public transit 0.0% Walk 1.3% Work from home 5.9% Other means 3.0% Avg commute (minutes) 22.3
Poverty
Married-couple families
6.9%
Female-led households
14.3%
Income support
Source % of households Social Security 37.3% Retirement income 18.8% Supplemental Security 4.1% Cash public assistance 0.5% Food stamps / SNAP 9.5%
Health indicators
Condition % Obesity 37.8% High blood pressure 31.4% High cholesterol 32.1% Diabetes 10.7% Heart disease 6.5% Stroke 3.0% Asthma 9.1% Arthritis 22.6% Kidney disease 2.9% Pulmonary disease 6.6% Cancer 6.4%
Behavior / access % Smoking 17.8% Binge drinking 20.9% No physical activity 26.8% Less than 7 hrs sleep 32.1% Depression 16.8% Fair or poor health 15.1% Poor mental health 13.4% Poor physical health 10.2% No health insurance 15.8% Visited doctor (checkup) 73.9% Visited dentist 63.7% Cholesterol screening 87.3% Teeth loss 15.3%
Veterans & disability
Veterans Count % Civilian veterans 80 3.2%
Disability % Any disability 9.3% Under 18 3.9% 18–64 years 6.7% 65 and over 27.9%
Health insurance coverage
Type % Private insurance 67.7% Public insurance 42.2% No insurance 4.7% Uninsured under 19 0.2%
Language & origin
Language spoken at home (age 5+)
Language Count % English only 3,050 90.0% Spanish 608 19.9% Other Indo-European 504 16.5% Asian & Pacific Islander 0 0.0% Other languages 82 2.7%
Place of birth & citizenship
Origin Count % Native born (US) 2,669 78.8% Born in same state 2,606 76.9% Born in different state 2,075 61.2% Foreign born 63 1.9% Naturalized citizen 720 21.2% Not a US citizen 270 37.5%
Ancestry
Ancestry Count % French 235 6.9% Italian 134 4% Arab 87 2.6% English 47 1.4%
Ancestry Count % Polish 27 0.8% Irish 14 0.4% Dutch 8 0.2%
Technology access
Metric % of households Computer access 33.4% Internet access 87.5%
Source: U.S. Census Bureau, American Community Survey 2025 estimates.
Frequently asked questions about ZIP code 52738
What city is ZIP code 52738 in?
ZIP code 52738 is primarily assigned to Columbus Junction, Iowa.
What county is ZIP code 52738 in?
ZIP code 52738 falls within Louisa County, Iowa.
Does ZIP code 52738 have a large retiree population?
37% of households in ZIP code 52738 receive Social Security income, suggesting a significant retiree or disability population.
What is the typical home value in ZIP code 52738?
The median home value in ZIP code 52738 is $134,900.
What is the population of ZIP code 52738?
ZIP code 52738 has an estimated population of 3,389 residents, with a density of 28 people per square mile.
What is the median household income in ZIP code 52738?
The median household income in ZIP code 52738 is $74,043, below the national median of ~$75,000.
What timezone is ZIP code 52738 in?
ZIP code 52738 observes the CST timezone.
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