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Iowa ZIP Codes
Webster County
Callender, IA
50523
50523 ZIP Code — Callender, IA
Webster County, Iowa
ZIP code 50523 is located in
Callender ,
Iowa ,
within Webster County .
It covers approximately 42.05 square miles and serves a population of
667 residents.
This is a standard ZIP code in the Central (CT) timezone,
served by area code 515 .
About ZIP code 50523
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 $127,700. Owner-occupancy sits near the national average at 72%.
Median household income is $76,875. The poverty rate of 5% is below the national average.
The dominant occupation class is management, business, and professional, with education and healthcare as the leading industry. The average commute of 23 minutes is near the national average.
College attainment at 15% is below the national average, consistent with a trades and production-oriented local economy.
50523 ZIP code map
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Cities in ZIP code 50523
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Nearby ZIP codes
Demographics
updated 05/2026
Population
Total population
667
Population density
16 / sq mi
State FIPS
19
County FIPS
187
Geography
Land area
42.05 sq mi
Water area
0.00 sq mi
Latitude
42.3690
Longitude
-94.3003
Timezone
Central (CT)
Area code
515
Economics
updated 05/2026
Household income
Income range
This ZIP
County avg
State avg
Under $50k
48.6%
48.3%
40.1%
$50k – $100k
42.8%
33.3%
33.4%
$100k – $200k
7.2%
16.1%
21.5%
Over $200k
1.4%
2.2%
5.0%
Demographics & statistics
$76,875
Median household income
$127,700
Median home value
14.5%
Bachelor's or higher
Age distribution
Age summary
Group Count %
Under 18 152 22.8%
18 and over 515 77.2%
65 and over 93 13.9%
Median age 38.5 years
Race & ethnicity
Group Count %
White 630 93.6%
Two or more races 31 4.6%
Hispanic or Latino 6 0.9%
Other race 5 0.7%
Asian 1 0.1%
Household income
Income range
This ZIP
County avg
State avg
Under $50k
48.6%
48.3%
40.1%
$50k – $100k
42.8%
33.3%
33.4%
$100k – $200k
7.2%
16.1%
21.5%
Over $200k
1.4%
2.2%
5.0%
Range % of households
Under $10k 2.4%
$10k–$15k 3.6%
$15k–$25k 10.8%
$25k–$35k 9.6%
$35k–$50k 6.4%
$50k–$75k 16.0%
$75k–$100k 14.0%
$100k–$150k 27.6%
$150k–$200k 9.2%
$200k+ 0.4%
Median income $76,875
Housing
Housing overview
Metric Value
Median home value $127,700
Median rent / month $0
Owner occupied 71.6%
Renter occupied 28.4%
Vacant 7.1%
Single-family detached 91.8%
Large apartment buildings 0.0%
Mobile homes 0.0%
Median rooms 7.1
Avg household size (owned) 2.91
Year built
Era %
2020 or later 0.0%
2010–2019 0.4%
2000–2009 7.4%
1990–1999 1.9%
1980–1989 2.2%
1970–1979 13.0%
1960–1969 10.0%
1950–1959 16.4%
1940–1949 8.6%
1939 or earlier 40.1%
Bedrooms
Size % of units
No bedroom (studio) 0.0%
1 bedroom 11.9%
2 bedrooms 4.1%
3 bedrooms 53.2%
4 bedrooms 27.9%
5+ bedrooms 3.0%
Vehicles per household
Vehicles % of households
No vehicle 2.0%
1 vehicle 26.0%
2 vehicles 20.0%
3 or more 52.0%
Heating fuel
Fuel type %
Utility gas 47.6%
Electricity 12.8%
Propane / LP gas 39.6%
Households & families
Household type Count %
Married-couple family 149 59.6%
Cohabiting couple 5 2.0%
Male householder, no spouse 44 17.6%
Female householder, no spouse 52 20.8%
Households with children under 18 58 23.2%
Households with seniors (65+) 71 28.4%
Average household size 2.67
Marital status
Status Male Female
Never married 37.6% 22.5%
Married 49.1% 62.1%
Separated 0.7% 0.4%
Widowed 8.0% 8.3%
Divorced 4.5% 6.7%
Education
Some college, no degree
23.5%
Graduate / professional
2.9%
Metric %
HS diploma or higher 95.7%
Bachelor's or higher 14.5%
School enrollment (ages 3–17)
Type Count %
Nursery / preschool 11 6.8%
Kindergarten 5 3.1%
Elementary school 69 42.9%
High school 59 36.6%
College / grad school 17 10.6%
Employment
Industry of employment
Education & healthcare
25.3%
Agriculture & mining
14.9%
Public administration
14.3%
Transportation & utilities
7.9%
Professional & management
7.0%
Finance & real estate
1.7%
Arts, food & hospitality
1.4%
Occupation
Category %
Management, business & arts 36.8%
Service 24.4%
Sales & office 12.4%
Natural resources & construction 11.0%
Production & transportation 15.4%
Employment type
Type %
Private sector 60.1%
Government 23.9%
Self-employed 11.8%
Unpaid family workers 4.2%
Commute
Method %
Drive alone 87.9%
Carpool 2.8%
Public transit 0.0%
Walk 2.2%
Work from home 5.9%
Other means 1.1%
Avg commute (minutes) 23.2
Poverty
Married-couple families
0.7%
Female-led households
20.0%
Income support
Source % of households
Social Security 28.8%
Retirement income 10.0%
Supplemental Security 10.0%
Cash public assistance 2.4%
Food stamps / SNAP 4.4%
Health indicators
Condition %
Obesity 35.7%
High blood pressure 33.5%
High cholesterol 32.3%
Diabetes 10.2%
Heart disease 7.4%
Stroke 3.3%
Asthma 9.5%
Arthritis 25.7%
Kidney disease 3.1%
Pulmonary disease 7.1%
Cancer 7.7%
Behavior / access %
Smoking 17.6%
Binge drinking 20.8%
No physical activity 24.5%
Less than 7 hrs sleep 30.8%
Depression 17.5%
Fair or poor health 12.9%
Poor mental health 13.3%
Poor physical health 9.9%
No health insurance 9.0%
Visited doctor (checkup) 75.8%
Visited dentist 66.8%
Cholesterol screening 89.1%
Teeth loss 14.1%
Veterans & disability
Veterans Count %
Civilian veterans 30 5.8%
Disability %
Any disability 11.7%
Under 18 0.0%
18–64 years 7.6%
65 and over 49.5%
Health insurance coverage
Type %
Private insurance 80.7%
Public insurance 26.1%
No insurance 1.5%
Uninsured under 19 0.0%
Language & origin
Language spoken at home (age 5+)
Language Count %
English only 626 93.9%
Spanish 1 0.2%
Other Indo-European 1 0.2%
Asian & Pacific Islander 0 0.0%
Other languages 0 0.0%
Place of birth & citizenship
Origin Count %
Native born (US) 667 100.0%
Born in same state 667 100.0%
Born in different state 614 92.1%
Foreign born 0 0.0%
Naturalized citizen 0 0.0%
Not a US citizen 0 0.0%
Ancestry
Ancestry Count %
Polish 86 12.9%
Italian 63 9.4%
French 31 4.6%
Ancestry Count %
Arab 17 2.5%
Dutch 11 1.6%
Technology access
Metric % of households
Computer access 37.5%
Internet access 91.2%
Source: U.S. Census Bureau, American Community Survey 2025 estimates.
Frequently asked questions about ZIP code 50523
What city is ZIP code 50523 in?
ZIP code 50523 is primarily assigned to Callender, Iowa.
What county is ZIP code 50523 in?
ZIP code 50523 falls within Webster County, Iowa.
How educated is the population of ZIP code 50523?
15% of residents hold a bachelor's degree or higher — below the national average of ~33%, consistent with a trades-oriented local economy.
What is the typical home value in ZIP code 50523?
The median home value in ZIP code 50523 is $127,700.
What is the population of ZIP code 50523?
ZIP code 50523 has an estimated population of 667 residents, with a density of 16 people per square mile.
What is the median household income in ZIP code 50523?
The median household income in ZIP code 50523 is $76,875, above the national median of ~$75,000.
What timezone is ZIP code 50523 in?
ZIP code 50523 observes the CST timezone.
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