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Iowa ZIP Codes
Clay County
Fostoria, IA
51340
51340 ZIP Code — Fostoria, IA
Clay County, Iowa
ZIP code 51340 is located in
Fostoria ,
Iowa ,
within Clay County .
It covers approximately 0.12 square miles and serves a population of
93 residents.
This is a standard ZIP code in the Central (CT) timezone,
served by area code 712 .
51340 ZIP code map
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Cities in ZIP code 51340
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Demographics
updated 05/2026
Population
Total population
93
Population density
775 / sq mi
State FIPS
19
County FIPS
041
Geography
Land area
0.12 sq mi
Water area
0.00 sq mi
Latitude
43.2148
Longitude
-95.2127
Timezone
Central (CT)
Area code
712
Demographics & statistics
$80,000
Median household income
30.7%
Bachelor's or higher
Age distribution
Age summary
Group Count %
Under 18 5 5.4%
18 and over 88 94.6%
65 and over 24 25.8%
Median age 54.8 years
Race & ethnicity
American Indian / Alaska Native
2.1%
Black or African American
1%
Group Count %
White 87 90.6%
Hispanic or Latino 3 3.1%
Two or more races 3 3.1%
American Indian / Alaska Native 2 2.1%
Black or African American 1 1%
Household income
Range % of households
$15k–$25k 2.0%
$25k–$35k 8.0%
$35k–$50k 20.0%
$50k–$75k 18.0%
$75k–$100k 34.0%
$100k–$150k 16.0%
$150k–$200k 2.0%
Median income $80,000
Housing
Housing overview
Metric Value
Median home value $82,000
Median rent / month $0
Owner occupied 96.0%
Renter occupied 4.0%
Vacant 5.7%
Single-family detached 94.3%
Large apartment buildings 0.0%
Mobile homes 0.0%
Median rooms 5.3
Avg household size (owned) 1.88
Year built
Era %
2020 or later 1.9%
2010–2019 0.0%
2000–2009 13.2%
1990–1999 0.0%
1980–1989 0.0%
1970–1979 7.5%
1960–1969 18.9%
1950–1959 7.5%
1940–1949 15.1%
1939 or earlier 35.8%
Bedrooms
Size % of units
No bedroom (studio) 0.0%
1 bedroom 1.9%
2 bedrooms 34.0%
3 bedrooms 52.8%
4 bedrooms 11.3%
5+ bedrooms 0.0%
Vehicles per household
Vehicles % of households
No vehicle 0.0%
1 vehicle 26.0%
2 vehicles 24.0%
3 or more 50.0%
Heating fuel
Fuel type %
Utility gas 78.0%
Electricity 8.0%
Wood 14.0%
Households & families
Household type Count %
Married-couple family 17 34.0%
Cohabiting couple 6 12.0%
Male householder, no spouse 2 4.0%
Female householder, no spouse 25 50.0%
Households with children under 18 3 6.0%
Households with seniors (65+) 18 36.0%
Average household size 1.86
Marital status
Status Male Female
Never married 41.9% 20.8%
Married 44.2% 35.4%
Separated 0.0% 0.0%
Widowed 0.0% 31.3%
Divorced 14.0% 12.5%
Education
Some college, no degree
21.3%
Graduate / professional
8.0%
Metric %
HS diploma or higher 92.0%
Bachelor's or higher 30.7%
School enrollment (ages 3–17)
Type Count %
Nursery / preschool 0 0.0%
Kindergarten 0 0.0%
Elementary school 2 40.0%
High school 3 60.0%
College / grad school 0 0.0%
Employment
Industry of employment
Professional & management
16.9%
Education & healthcare
14.1%
Transportation & utilities
9.9%
Arts, food & hospitality
2.8%
Occupation
Category %
Management, business & arts 29.6%
Service 8.5%
Sales & office 9.9%
Natural resources & construction 11.3%
Production & transportation 40.8%
Employment type
Type %
Private sector 73.2%
Government 16.9%
Self-employed 9.9%
Unpaid family workers 0.0%
Commute
Method %
Drive alone 80.3%
Carpool 15.5%
Public transit 0.0%
Walk 0.0%
Work from home 4.2%
Other means 0.0%
Avg commute (minutes) 18.8
Poverty
Married-couple families
0.0%
Female-led households
0.0%
Income support
Source % of households
Social Security 30.0%
Retirement income 22.0%
Supplemental Security 4.0%
Cash public assistance 0.0%
Food stamps / SNAP 0.0%
Health indicators
Condition %
Obesity 0.0%
High blood pressure 0.0%
High cholesterol 0.0%
Diabetes 0.0%
Heart disease 0.0%
Stroke 0.0%
Asthma 0.0%
Arthritis 0.0%
Kidney disease 0.0%
Pulmonary disease 0.0%
Cancer 0.0%
Behavior / access %
Smoking 0.0%
Binge drinking 0.0%
No physical activity 0.0%
Less than 7 hrs sleep 0.0%
Depression 0.0%
Fair or poor health 0.0%
Poor mental health 0.0%
Poor physical health 0.0%
No health insurance 0.0%
Visited doctor (checkup) 0.0%
Visited dentist 0.0%
Cholesterol screening 0.0%
Teeth loss 0.0%
Veterans & disability
Veterans Count %
Civilian veterans 4 4.5%
Disability %
Any disability 8.6%
Under 18 20.0%
18–64 years 0.0%
65 and over 29.2%
Health insurance coverage
Type %
Private insurance 89.2%
Public insurance 29.0%
No insurance 0.0%
Uninsured under 19 0.0%
Language & origin
Language spoken at home (age 5+)
Language Count %
English only 93 100.0%
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) 93 100.0%
Born in same state 93 100.0%
Born in different state 81 87.1%
Foreign born 0 0.0%
Naturalized citizen 0 0.0%
Not a US citizen 0 0.0%
Ancestry
Ancestry Count %
Italian 30 32.3%
Polish 7 7.5%
English 6 6.5%
Ancestry Count %
Arab 5 5.4%
French 3 3.2%
Technology access
Metric % of households
Computer access 53.8%
Internet access 92.0%
Source: U.S. Census Bureau, American Community Survey 2025 estimates.
Frequently asked questions about ZIP code 51340
What city is ZIP code 51340 in?
ZIP code 51340 is primarily assigned to Fostoria, Iowa.
What county is ZIP code 51340 in?
ZIP code 51340 falls within Clay County, Iowa.
Is ZIP code 51340 mostly owner-occupied?
96% of occupied units in ZIP code 51340 are owner-occupied, well above the national average.
Does ZIP code 51340 have an older population?
26% of residents in ZIP code 51340 are 65 or older, above the national average of ~17%.
What is the typical home value in ZIP code 51340?
The median home value in ZIP code 51340 is $82,000.
What is the population of ZIP code 51340?
ZIP code 51340 has an estimated population of 93 residents, with a density of 775 people per square mile.
What timezone is ZIP code 51340 in?
ZIP code 51340 observes the CST timezone.
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