51440 ZIP Code — Dedham, IA

Carroll County, Iowa

ZIP code 51440 is located in Dedham, Iowa, within Carroll County. It covers approximately 26.41 square miles and serves a population of 287 residents. This is a standard ZIP code in the Central (CT) timezone, served by area code 712.

About ZIP code 51440

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 $136,700. Owner-occupancy is high at 95%, well above the national average.

Median household income is $65,000.

The dominant occupation class is management, business, and professional, with education and healthcare as the leading industry. The average commute of 20 minutes is near the national average.

College attainment at 11% is below the national average, consistent with a trades and production-oriented local economy.

Overall, ZIP code 51440 reflects a community defined by a trades-oriented workforce and high homeownership.

287
population
26.41
sq mi land
Standard
ZIP type
Central (CT)
timezone
51440 ZIP code map
Cities in ZIP code 51440

Below are the cities the US Postal Service accepts for ZIP code 51440. Using any city not on this list may result in mail delivery delays.

City Status
Dedham Preferred
Nearby ZIP codes
51463 Templeton (5.9 mi) 50058 Coon Rapids (6 mi) 51401 Carroll (12.1 mi) 51443 Glidden (12.2 mi) 51455 Manning (13.1 mi) 50025 Audubon (13.1 mi) 50029 Bayard (14.1 mi) 51462 Scranton (15.1 mi) 51430 Arcadia (15.6 mi) 50026 Bagley (19.3 mi)
Demographics updated 05/2026
Population
Total population 287
Population density 11 / sq mi
State FIPS 19
County FIPS 027
Geography
Land area 26.41 sq mi
Water area 0.00 sq mi
Latitude 41.9064
Longitude -94.8026
Timezone Central (CT)
Area code 712
Total population by age
Gender
Race & ethnicity
Economics updated 05/2026
Household income
Income range This ZIP County avg State avg
Under $50k 41.2% 43.0% 40.1%
$50k – $100k 34.6% 31.6% 33.4%
$100k – $200k 24.3% 22.6% 21.5%
Over $200k 0.0% 2.7% 5.0%

Demographics & statistics

287
Population
11
People per sq mi
32.1
Median age
$65,000
Median household income
$27,926
Per capita income
$136,700
Median home value
$0
Median monthly rent
95.2%
Home ownership
17.4%
Poverty rate
1.3%
Unemployment
99
Housing units
11.4%
Bachelor's or higher

Age distribution

Male Female
11
Under 5
10
7
5–9
6
20
10–14
17
11
15–19
9
11
20–24
10
23
25–34
20
20
35–44
17
12
45–54
11
6
55–59
5
13
60–64
11
10
65–74
9
8
75–84
7
2
85+
1
← Male
Female →

Age summary

GroupCount%
Under 188730.3%
18 and over20069.7%
65 and over3712.9%
Median age32.1 years

Race & ethnicity

White 98.6%
Hispanic or Latino 0.7%
Two or more races 0.7%
GroupCount%
White28598.6%
Hispanic or Latino20.7%
Two or more races20.7%

Household income

Income range This ZIP County avg State avg
Under $50k 41.2% 43.0% 40.1%
$50k – $100k 34.6% 31.6% 33.4%
$100k – $200k 24.3% 22.6% 21.5%
Over $200k 0.0% 2.7% 5.0%
Under $10k 1.9%
$10k–$15k 3.8%
$15k–$25k 5.8%
$25k–$35k 12.5%
$35k–$50k 3.8%
$50k–$75k 26.9%
$75k–$100k 22.1%
$100k–$150k 20.2%
$150k–$200k 1.9%
$200k+ 1.0%
Range% of households
Under $10k1.9%
$10k–$15k3.8%
$15k–$25k5.8%
$25k–$35k12.5%
$35k–$50k3.8%
$50k–$75k26.9%
$75k–$100k22.1%
$100k–$150k20.2%
$150k–$200k1.9%
$200k+1.0%
Median income$65,000

Housing

Home values

Under $50k 5.1%
$50k–$100k 9.1%
$100k–$150k 44.4%
$150k–$200k 4.0%
$200k–$300k 27.3%
$300k–$500k 10.1%

Housing overview

MetricValue
Median home value$136,700
Median rent / month$0
Owner occupied95.2%
Renter occupied4.8%
Vacant0.0%
Single-family detached99.0%
Large apartment buildings0.0%
Mobile homes1.0%
Median rooms7.0
Avg household size (owned)2.79

Year built

Era%
2020 or later0.0%
2010–20195.8%
2000–20093.8%
1990–199910.6%
1980–198919.2%
1970–197910.6%
1960–196914.4%
1950–19598.7%
1940–19496.7%
1939 or earlier20.2%

Bedrooms

Size% of units
No bedroom (studio)0.0%
1 bedroom1.0%
2 bedrooms19.2%
3 bedrooms47.1%
4 bedrooms27.9%
5+ bedrooms4.8%

Vehicles per household

Vehicles% of households
No vehicle1.0%
1 vehicle17.3%
2 vehicles48.1%
3 or more33.7%

Heating fuel

Fuel type%
Electricity30.8%
Propane / LP gas69.2%

Households & families

Household typeCount%
Married-couple family6057.7%
Cohabiting couple65.8%
Male householder, no spouse2019.2%
Female householder, no spouse1817.3%
Households with children under 183836.5%
Households with seniors (65+)2423.1%
Average household size2.76

Marital status

StatusMaleFemale
Never married32.2%19.8%
Married54.8%64.4%
Separated0.0%0.0%
Widowed5.2%5.9%
Divorced7.8%9.9%

Education

Less than 9th grade 2.3%
Some HS, no diploma 1.1%
HS graduate 40.6%
Some college, no degree 19.4%
Associate's degree 25.1%
Bachelor's degree 5.1%
Graduate / professional 6.3%
Metric%
HS diploma or higher96.6%
Bachelor's or higher11.4%

School enrollment (ages 3–17)

TypeCount%
Nursery / preschool22.4%
Kindergarten11.2%
Elementary school4148.2%
High school2023.5%
College / grad school2124.7%

Employment

Industry of employment

Education & healthcare 18.9%
Agriculture & mining 14.2%
Construction 11.5%
Retail trade 11.5%
Arts, food & hospitality 11.5%
Manufacturing 10.1%
Wholesale trade 6.1%
Finance & real estate 6.1%
Professional & management 6.1%
Other services 3.4%
Transportation & utilities 0.7%

Occupation

Category%
Management, business & arts25.7%
Service20.9%
Sales & office22.3%
Natural resources & construction17.6%
Production & transportation13.5%

Employment type

Type%
Private sector73.6%
Government12.2%
Self-employed14.2%
Unpaid family workers0.0%

Commute

Method%
Drive alone81.1%
Carpool7.4%
Public transit4.1%
Walk0.7%
Work from home4.7%
Other means2.0%
Avg commute (minutes)19.7

Poverty

All people 17.4%
Under 18 years 29.9%
18 and over 12.0%
Married-couple families 6.7%
Female-led households 27.8%

Income support

Source% of households
Social Security21.2%
Retirement income11.5%
Supplemental Security1.0%
Cash public assistance0.0%
Food stamps / SNAP0.0%

Health indicators

Condition%
Obesity35.0%
High blood pressure31.8%
High cholesterol32.3%
Diabetes9.2%
Heart disease6.2%
Stroke2.8%
Asthma9.1%
Arthritis23.3%
Kidney disease2.7%
Pulmonary disease6.4%
Cancer6.5%
Behavior / access%
Smoking18.4%
Binge drinking24.7%
No physical activity21.7%
Less than 7 hrs sleep31.0%
Depression17.7%
Fair or poor health11.8%
Poor mental health13.6%
Poor physical health9.1%
No health insurance9.2%
Visited doctor (checkup)72.6%
Visited dentist64.0%
Cholesterol screening87.5%
Teeth loss12.5%

Veterans & disability

VeteransCount%
Civilian veterans2211.0%
Disability%
Any disability6.3%
Under 180.0%
18–64 years5.5%
65 and over24.3%

Health insurance coverage

Type%
Private insurance83.3%
Public insurance23.3%
No insurance0.7%
Uninsured under 190.0%

Language & origin

Language spoken at home (age 5+)

LanguageCount%
English only26692.7%
Spanish00.0%
Other Indo-European00.0%
Asian & Pacific Islander00.0%
Other languages00.0%

Place of birth & citizenship

OriginCount%
Native born (US)287100.0%
Born in same state287100.0%
Born in different state27796.5%
Foreign born00.0%
Naturalized citizen00.0%
Not a US citizen00.0%

Ancestry

AncestryCount%
Italian3612.5%
Arab279.4%
AncestryCount%
French72.4%
English41.4%

Technology access

Metric% of households
Computer access36.2%
Internet access94.2%

Source: U.S. Census Bureau, American Community Survey 2025 estimates.

Frequently asked questions about ZIP code 51440

What city is ZIP code 51440 in?

ZIP code 51440 is primarily assigned to Dedham, Iowa.

What county is ZIP code 51440 in?

ZIP code 51440 falls within Carroll County, Iowa.

Is ZIP code 51440 mostly owner-occupied?

95% of occupied units in ZIP code 51440 are owner-occupied, well above the national average.

Is ZIP code 51440 family-oriented?

30% of residents in ZIP code 51440 are under 18, reflecting a younger, family-oriented community.

How educated is the population of ZIP code 51440?

11% 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 poverty rate in ZIP code 51440?

17% of residents in ZIP code 51440 live below the poverty line, above the national average.

What timezone is ZIP code 51440 in?

ZIP code 51440 observes the CST timezone.

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