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Iowa ZIP Codes
Story County
Colo, IA
50056
50056 ZIP Code — Colo, IA
Story County, Iowa
ZIP code 50056 is located in
Colo ,
Iowa ,
within Story County .
It covers approximately 60.92 square miles and serves a population of
1,190 residents.
This is a standard ZIP code in the Central (CT) timezone,
served by area code 641 .
About ZIP code 50056
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 $163,600. Owner-occupancy is high at 85%, well above the national average.
Median household income is $76,875. The poverty rate of 4% is below the national average. 35% of households receive Social Security income, suggesting a notable retiree or disability population.
The dominant occupation class is management, business, and professional, with education and healthcare as the leading industry. The average commute of 27 minutes is near the national average.
Educational attainment is near the national average, with 24% of residents holding a bachelor's degree or higher.
Overall, ZIP code 50056 reflects a community defined by high homeownership and a significant Social Security-dependent population.
50056 ZIP code map
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Cities in ZIP code 50056
Below are the cities the US Postal Service accepts for ZIP code 50056. Using any city not on this list may result in mail delivery delays.
City
Status
Colo
Preferred
Nearby ZIP codes
Demographics
updated 05/2026
Population
Total population
1,190
Population density
20 / sq mi
State FIPS
19
County FIPS
169
Geography
Land area
60.92 sq mi
Water area
0.18 sq mi
Latitude
42.0285
Longitude
-93.2896
Timezone
Central (CT)
Area code
641
Economics
updated 05/2026
Household income
Income range
This ZIP
County avg
State avg
Under $50k
33.7%
43.0%
40.1%
$50k – $100k
35.7%
29.3%
33.4%
$100k – $200k
22.6%
22.2%
21.5%
Over $200k
7.9%
5.5%
5.0%
Demographics & statistics
$76,875
Median household income
$163,600
Median home value
$1,015
Median monthly rent
23.9%
Bachelor's or higher
Age distribution
Age summary
Group Count %
Under 18 319 26.8%
18 and over 871 73.2%
65 and over 234 19.7%
Median age 39.7 years
Race & ethnicity
Group Count %
White 1,162 96.5%
Hispanic or Latino 14 1.2%
Two or more races 12 1%
Asian 9 0.7%
Other race 7 0.6%
Household income
Income range
This ZIP
County avg
State avg
Under $50k
33.7%
43.0%
40.1%
$50k – $100k
35.7%
29.3%
33.4%
$100k – $200k
22.6%
22.2%
21.5%
Over $200k
7.9%
5.5%
5.0%
Range % of households
Under $10k 2.2%
$10k–$15k 0.2%
$15k–$25k 5.6%
$25k–$35k 7.8%
$35k–$50k 14.4%
$50k–$75k 16.6%
$75k–$100k 17.4%
$100k–$150k 25.1%
$150k–$200k 4.0%
$200k+ 6.8%
Median income $76,875
Housing
Housing overview
Metric Value
Median home value $163,600
Median rent / month $1,015
Owner occupied 85.0%
Renter occupied 15.0%
Vacant 3.1%
Single-family detached 94.6%
Large apartment buildings 0.0%
Mobile homes 2.5%
Median rooms 7.0
Avg household size (owned) 2.48
Year built
Era %
2020 or later 0.0%
2010–2019 1.2%
2000–2009 3.9%
1990–1999 12.2%
1980–1989 3.1%
1970–1979 20.9%
1960–1969 8.1%
1950–1959 3.7%
1940–1949 2.1%
1939 or earlier 44.9%
Bedrooms
Size % of units
No bedroom (studio) 0.8%
1 bedroom 1.5%
2 bedrooms 22.6%
3 bedrooms 40.6%
4 bedrooms 28.2%
5+ bedrooms 6.2%
Vehicles per household
Vehicles % of households
No vehicle 3.8%
1 vehicle 18.2%
2 vehicles 40.3%
3 or more 37.7%
Heating fuel
Fuel type %
Utility gas 66.7%
Electricity 12.0%
Propane / LP gas 21.4%
Households & families
Household type Count %
Married-couple family 273 54.5%
Cohabiting couple 37 7.4%
Male householder, no spouse 82 16.4%
Female householder, no spouse 109 21.8%
Households with children under 18 158 31.5%
Households with seniors (65+) 180 35.9%
Average household size 2.38
Marital status
Status Male Female
Never married 27.6% 17.3%
Married 57.5% 61.3%
Separated 0.0% 0.0%
Widowed 4.2% 9.8%
Divorced 10.6% 11.6%
Education
Some college, no degree
21.5%
Graduate / professional
3.7%
Metric %
HS diploma or higher 97.3%
Bachelor's or higher 23.9%
School enrollment (ages 3–17)
Type Count %
Nursery / preschool 16 5.4%
Kindergarten 12 4.0%
Elementary school 182 60.9%
High school 49 16.4%
College / grad school 40 13.4%
Employment
Industry of employment
Education & healthcare
19.4%
Professional & management
8.2%
Transportation & utilities
6.5%
Public administration
5.7%
Finance & real estate
5.4%
Arts, food & hospitality
5.0%
Agriculture & mining
4.2%
Occupation
Category %
Management, business & arts 29.3%
Service 17.6%
Sales & office 21.2%
Natural resources & construction 13.7%
Production & transportation 18.2%
Employment type
Type %
Private sector 74.7%
Government 19.1%
Self-employed 5.4%
Unpaid family workers 0.8%
Commute
Method %
Drive alone 80.1%
Carpool 5.7%
Public transit 1.0%
Walk 0.5%
Work from home 12.7%
Other means 0.0%
Avg commute (minutes) 27.4
Poverty
Married-couple families
0.0%
Female-led households
15.2%
Income support
Source % of households
Social Security 34.5%
Retirement income 25.1%
Supplemental Security 2.0%
Cash public assistance 3.0%
Food stamps / SNAP 4.2%
Health indicators
Condition %
Obesity 32.1%
High blood pressure 30.9%
High cholesterol 32.7%
Diabetes 9.1%
Heart disease 6.3%
Stroke 2.8%
Asthma 9.1%
Arthritis 24.4%
Kidney disease 2.7%
Pulmonary disease 6.0%
Cancer 7.3%
Behavior / access %
Smoking 14.8%
Binge drinking 21.7%
No physical activity 19.7%
Less than 7 hrs sleep 27.4%
Depression 15.8%
Fair or poor health 10.7%
Poor mental health 12.2%
Poor physical health 8.6%
No health insurance 7.9%
Visited doctor (checkup) 72.0%
Visited dentist 73.8%
Cholesterol screening 90.1%
Teeth loss 10.7%
Veterans & disability
Veterans Count %
Civilian veterans 77 8.8%
Disability %
Any disability 11.5%
Under 18 5.0%
18–64 years 10.2%
65 and over 23.9%
Health insurance coverage
Type %
Private insurance 73.5%
Public insurance 35.6%
No insurance 5.2%
Uninsured under 19 3.4%
Language & origin
Language spoken at home (age 5+)
Language Count %
English only 1,139 95.7%
Spanish 5 0.4%
Other Indo-European 3 0.3%
Asian & Pacific Islander 0 0.0%
Other languages 2 0.2%
Place of birth & citizenship
Origin Count %
Native born (US) 1,184 99.5%
Born in same state 1,168 98.2%
Born in different state 1,039 87.3%
Foreign born 16 1.3%
Naturalized citizen 6 0.5%
Not a US citizen 6 100.0%
Ancestry
Ancestry Count %
Polish 206 17.3%
Italian 166 13.9%
French 152 12.8%
Ancestry Count %
Arab 48 4%
English 20 1.7%
Dutch 16 1.3%
Technology access
Metric % of households
Computer access 42.1%
Internet access 95.8%
Source: U.S. Census Bureau, American Community Survey 2025 estimates.
Frequently asked questions about ZIP code 50056
What city is ZIP code 50056 in?
ZIP code 50056 is primarily assigned to Colo, Iowa.
What county is ZIP code 50056 in?
ZIP code 50056 falls within Story County, Iowa.
Is ZIP code 50056 mostly owner-occupied?
85% of occupied units in ZIP code 50056 are owner-occupied, well above the national average.
What is the typical home value in ZIP code 50056?
The median home value in ZIP code 50056 is $163,600.
What is the population of ZIP code 50056?
ZIP code 50056 has an estimated population of 1,190 residents, with a density of 20 people per square mile.
What is the median household income in ZIP code 50056?
The median household income in ZIP code 50056 is $76,875, above the national median of ~$75,000.
What timezone is ZIP code 50056 in?
ZIP code 50056 observes the CST timezone.
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