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Iowa ZIP Codes
Webster County
Barnum, IA
50518
50518 ZIP Code — Barnum, IA
Webster County, Iowa
ZIP code 50518 is located in
Barnum ,
Iowa ,
within Webster County .
It covers approximately 28.87 square miles and serves a population of
350 residents.
This is a standard ZIP code in the Central (CT) timezone,
served by area code 515 .
About ZIP code 50518
The housing stock consists of predominantly single-family detached homes. Most homes were built in the 1990s, giving the area an established character. Median home value is $138,800. Owner-occupancy is high at 94%, well above the national average.
Median household income is $79,554. The poverty rate of 7% is below the national average.
The dominant occupation class is natural resources, construction, and trades, with manufacturing as the leading industry. The average commute of 21 minutes is near the national average.
College attainment at 7% is below the national average, consistent with a trades and production-oriented local economy.
Overall, ZIP code 50518 reflects a community defined by a trades-oriented workforce and high homeownership.
50518 ZIP code map
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Cities in ZIP code 50518
Below are the cities the US Postal Service accepts for ZIP code 50518. Using any city not on this list may result in mail delivery delays.
Nearby ZIP codes
Demographics
updated 05/2026
Population
Total population
350
Population density
12 / sq mi
State FIPS
19
County FIPS
187
Geography
Land area
28.87 sq mi
Water area
0.00 sq mi
Latitude
42.5160
Longitude
-94.3839
Timezone
Central (CT)
Area code
515
Economics
updated 05/2026
Household income
Income range
This ZIP
County avg
State avg
Under $50k
23.6%
48.3%
40.1%
$50k – $100k
64.8%
33.3%
33.4%
$100k – $200k
11.5%
16.1%
21.5%
Over $200k
0.0%
2.2%
5.0%
Demographics & statistics
$79,554
Median household income
$138,800
Median home value
Age distribution
Age summary
Group Count %
Under 18 138 39.4%
18 and over 212 60.6%
65 and over 21 6.0%
Median age 27.4 years
Race & ethnicity
Group Count %
White 340 97.1%
Two or more races 10 2.9%
Household income
Income range
This ZIP
County avg
State avg
Under $50k
23.6%
48.3%
40.1%
$50k – $100k
64.8%
33.3%
33.4%
$100k – $200k
11.5%
16.1%
21.5%
Over $200k
0.0%
2.2%
5.0%
Range % of households
Under $10k 8.9%
$10k–$15k 1.6%
$15k–$25k 0.8%
$25k–$35k 2.4%
$35k–$50k 4.8%
$50k–$75k 12.1%
$75k–$100k 52.4%
$100k–$150k 6.5%
$150k–$200k 4.0%
$200k+ 6.5%
Median income $79,554
Housing
Housing overview
Metric Value
Median home value $138,800
Median rent / month $0
Owner occupied 94.4%
Renter occupied 5.6%
Vacant 5.3%
Single-family detached 95.4%
Large apartment buildings 0.0%
Mobile homes 0.8%
Median rooms 7.0
Avg household size (owned) 2.91
Year built
Era %
2020 or later 0.0%
2010–2019 16.0%
2000–2009 9.2%
1990–1999 22.1%
1980–1989 8.4%
1970–1979 14.5%
1960–1969 6.1%
1950–1959 6.1%
1940–1949 0.0%
1939 or earlier 17.6%
Bedrooms
Size % of units
No bedroom (studio) 0.0%
1 bedroom 5.3%
2 bedrooms 15.3%
3 bedrooms 35.9%
4 bedrooms 22.9%
5+ bedrooms 20.6%
Vehicles per household
Vehicles % of households
No vehicle 1.6%
1 vehicle 12.1%
2 vehicles 37.9%
3 or more 48.4%
Heating fuel
Fuel type %
Electricity 6.5%
Propane / LP gas 92.7%
No fuel used 0.8%
Households & families
Household type Count %
Married-couple family 68 54.8%
Cohabiting couple 6 4.8%
Male householder, no spouse 33 26.6%
Female householder, no spouse 17 13.7%
Households with children under 18 73 58.9%
Households with seniors (65+) 13 10.5%
Average household size 2.82
Marital status
Status Male Female
Never married 32.8% 28.3%
Married 50.4% 60.6%
Separated 0.0% 0.0%
Widowed 2.2% 4.0%
Divorced 14.6% 7.1%
Education
Some college, no degree
21.5%
Graduate / professional
5.8%
Metric %
HS diploma or higher 95.8%
Bachelor's or higher 7.3%
School enrollment (ages 3–17)
Type Count %
Nursery / preschool 1 1.3%
Kindergarten 32 40.5%
Elementary school 23 29.1%
High school 20 25.3%
College / grad school 3 3.8%
Employment
Industry of employment
Education & healthcare
23.6%
Agriculture & mining
22.4%
Arts, food & hospitality
3.0%
Public administration
3.0%
Finance & real estate
1.2%
Professional & management
1.2%
Occupation
Category %
Management, business & arts 16.4%
Service 24.8%
Sales & office 6.7%
Natural resources & construction 37.0%
Production & transportation 15.2%
Employment type
Type %
Private sector 89.7%
Government 6.1%
Self-employed 4.2%
Unpaid family workers 0.0%
Commute
Method %
Drive alone 89.1%
Carpool 6.1%
Public transit 0.0%
Walk 0.0%
Work from home 3.0%
Other means 1.8%
Avg commute (minutes) 21.1
Poverty
Married-couple families
1.5%
Female-led households
57.1%
Income support
Source % of households
Social Security 9.7%
Retirement income 8.9%
Supplemental Security 4.8%
Cash public assistance 4.0%
Food stamps / SNAP 1.6%
Health indicators
Condition %
Obesity 36.2%
High blood pressure 32.9%
High cholesterol 32.6%
Diabetes 10.2%
Heart disease 7.0%
Stroke 3.0%
Asthma 9.3%
Arthritis 24.8%
Kidney disease 2.9%
Pulmonary disease 6.9%
Cancer 7.2%
Behavior / access %
Smoking 17.7%
Binge drinking 21.1%
No physical activity 23.4%
Less than 7 hrs sleep 30.9%
Depression 17.6%
Fair or poor health 12.4%
Poor mental health 13.2%
Poor physical health 9.6%
No health insurance 9.0%
Visited doctor (checkup) 75.4%
Visited dentist 67.4%
Cholesterol screening 89.1%
Teeth loss 12.8%
Veterans & disability
Veterans Count %
Civilian veterans 5 2.4%
Disability %
Any disability 12.6%
Under 18 1.4%
18–64 years 17.3%
65 and over 42.9%
Health insurance coverage
Type %
Private insurance 88.0%
Public insurance 17.4%
No insurance 1.7%
Uninsured under 19 0.0%
Language & origin
Language spoken at home (age 5+)
Language Count %
English only 317 90.6%
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) 350 100.0%
Born in same state 350 100.0%
Born in different state 300 85.7%
Foreign born 0 0.0%
Naturalized citizen 0 0.0%
Not a US citizen 0 0.0%
Ancestry
Ancestry Count %
Arab 81 23.1%
Italian 41 11.7%
Dutch 7 2%
Polish 6 1.7%
Ancestry Count %
French 4 1.1%
German 1 0.3%
English 1 0.3%
Technology access
Metric % of households
Computer access 35.4%
Internet access 97.6%
Source: U.S. Census Bureau, American Community Survey 2025 estimates.
Frequently asked questions about ZIP code 50518
What city is ZIP code 50518 in?
ZIP code 50518 is primarily assigned to Barnum, Iowa.
What county is ZIP code 50518 in?
ZIP code 50518 falls within Webster County, Iowa.
Is ZIP code 50518 family-oriented?
39% of residents in ZIP code 50518 are under 18, reflecting a younger, family-oriented community.
Is ZIP code 50518 mostly owner-occupied?
94% of occupied units in ZIP code 50518 are owner-occupied, well above the national average.
How educated is the population of ZIP code 50518?
7% 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 50518?
The median home value in ZIP code 50518 is $138,800.
What timezone is ZIP code 50518 in?
ZIP code 50518 observes the CST timezone.
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