51401 ZIP Code — Carroll, IA
Carroll County, Iowa
ZIP code 51401 is located in Carroll, Iowa, within Carroll County. It covers approximately 168.58 square miles and serves a population of 12,174 residents. This is a standard ZIP code in the Central (CT) timezone, served by area code 712.
About ZIP code 51401
The housing stock consists of predominantly single-family detached homes. Most homes were built in the 1970s, giving the area an established character. Median home value is $182,000. Owner-occupancy sits near the national average at 71%.
Median household income is $66,768. 33% 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 11 minutes is near the national average.
Educational attainment is near the national average, with 24% of residents holding a bachelor's degree or higher.
12,174
population
168.58
sq mi land
Standard
ZIP type
Central (CT)
timezone
51401 ZIP code map
Cities in ZIP code 51401
Below are the cities the US Postal Service accepts for ZIP code 51401. Using any city not on this list may result in mail delivery delays.
| City | Status |
|---|---|
| Carroll | Acceptable |
| Carroll | Preferred |
Nearby ZIP codes
51430 Arcadia (8.1 mi)
51443 Glidden (8.9 mi)
51436 Breda (10.6 mi)
51463 Templeton (11.6 mi)
51440 Dedham (12.1 mi)
51467 Westside (12.9 mi)
51433 Auburn (15 mi)
51455 Manning (16.2 mi)
51449 Lake City (16.2 mi)
51465 Vail (16.7 mi)
50058 Coon Rapids (16.8 mi)
51466 Wall Lake (17.4 mi)
Demographics
updated 05/2026
| Population | |
|---|---|
| Total population | 12,174 |
| Population density | 72 / sq mi |
| State FIPS | 19 |
| County FIPS | 027 |
| Geography | |
|---|---|
| Land area | 168.58 sq mi |
| Water area | 0.24 sq mi |
| Latitude | 42.0723 |
| Longitude | -94.8796 |
| 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 | 46.6% | 43.0% | 40.1% |
| $50k – $100k | 25.9% | 31.6% | 33.4% |
| $100k – $200k | 24.8% | 22.6% | 21.5% |
| Over $200k | 2.7% | 2.7% | 5.0% |
Demographics & statistics
12,174
Population
72
People per sq mi
43.6
Median age
$66,768
Median household income
$37,084
Per capita income
$182,000
Median home value
$696
Median monthly rent
71.2%
Home ownership
8.0%
Poverty rate
2.4%
Unemployment
4,160
Housing units
24.4%
Bachelor's or higher
Age distribution
Male
Female
276
Under 5
300
383
5–9
415
437
10–14
474
382
15–19
414
296
20–24
321
617
25–34
669
651
35–44
706
720
45–54
782
373
55–59
405
389
60–64
422
683
65–74
742
412
75–84
448
219
85+
238
← Male
Female →
Age summary
| Group | Count | % |
|---|---|---|
| Under 18 | 2,801 | 23.0% |
| 18 and over | 9,373 | 77.0% |
| 65 and over | 2,742 | 22.5% |
| Median age | 43.6 years | |
Race & ethnicity
White
91%
Hispanic or Latino
2.8%
Two or more races
2.7%
Black or African American
1.7%
Other race
0.8%
Asian
0.5%
American Indian / Alaska Native
0.4%
| Group | Count | % |
|---|---|---|
| White | 11,409 | 91% |
| Hispanic or Latino | 357 | 2.8% |
| Two or more races | 341 | 2.7% |
| Black or African American | 210 | 1.7% |
| Other race | 98 | 0.8% |
| Asian | 67 | 0.5% |
| American Indian / Alaska Native | 49 | 0.4% |
Household income
| Income range | This ZIP | County avg | State avg |
|---|---|---|---|
| Under $50k | 46.6% | 43.0% | 40.1% |
| $50k – $100k | 25.9% | 31.6% | 33.4% |
| $100k – $200k | 24.8% | 22.6% | 21.5% |
| Over $200k | 2.7% | 2.7% | 5.0% |
Under $10k
4.1%
$10k–$15k
6.0%
$15k–$25k
9.2%
$25k–$35k
8.5%
$35k–$50k
12.8%
$50k–$75k
14.8%
$75k–$100k
10.4%
$100k–$150k
21.7%
$150k–$200k
7.7%
$200k+
4.7%
| Range | % of households |
|---|---|
| Under $10k | 4.1% |
| $10k–$15k | 6.0% |
| $15k–$25k | 9.2% |
| $25k–$35k | 8.5% |
| $35k–$50k | 12.8% |
| $50k–$75k | 14.8% |
| $75k–$100k | 10.4% |
| $100k–$150k | 21.7% |
| $150k–$200k | 7.7% |
| $200k+ | 4.7% |
| Median income | $66,768 |
Housing
Home values
Under $50k
4.3%
$50k–$100k
9.0%
$100k–$150k
24.2%
$150k–$200k
20.5%
$200k–$300k
21.8%
$300k–$500k
16.2%
$500k–$1M
3.8%
$1M+
0.1%
Housing overview
| Metric | Value |
|---|---|
| Median home value | $182,000 |
| Median rent / month | $696 |
| Owner occupied | 71.2% |
| Renter occupied | 28.8% |
| Vacant | 8.0% |
| Single-family detached | 75.7% |
| Large apartment buildings | 7.3% |
| Mobile homes | 0.6% |
| Median rooms | 6.5 |
| Avg household size (owned) | 2.46 |
Year built
| Era | % |
|---|---|
| 2020 or later | 0.1% |
| 2010–2019 | 2.7% |
| 2000–2009 | 13.6% |
| 1990–1999 | 8.9% |
| 1980–1989 | 8.7% |
| 1970–1979 | 20.4% |
| 1960–1969 | 13.7% |
| 1950–1959 | 10.6% |
| 1940–1949 | 5.3% |
| 1939 or earlier | 16.0% |
Bedrooms
| Size | % of units |
|---|---|
| No bedroom (studio) | 1.5% |
| 1 bedroom | 8.4% |
| 2 bedrooms | 23.4% |
| 3 bedrooms | 39.8% |
| 4 bedrooms | 19.9% |
| 5+ bedrooms | 7.0% |
Vehicles per household
| Vehicles | % of households |
|---|---|
| No vehicle | 8.7% |
| 1 vehicle | 32.2% |
| 2 vehicles | 41.3% |
| 3 or more | 17.9% |
Heating fuel
| Fuel type | % |
|---|---|
| Utility gas | 62.6% |
| Electricity | 29.3% |
| Propane / LP gas | 7.4% |
| Fuel oil | 0.3% |
| Wood | 0.1% |
| No fuel used | 0.3% |
Households & families
| Household type | Count | % |
|---|---|---|
| Married-couple family | 2,412 | 46.3% |
| Cohabiting couple | 332 | 6.4% |
| Male householder, no spouse | 887 | 17.0% |
| Female householder, no spouse | 1,574 | 30.2% |
| Households with children under 18 | 1,354 | 26.0% |
| Households with seniors (65+) | 1,863 | 35.8% |
| Average household size | 2.28 | |
Marital status
| Status | Male | Female |
|---|---|---|
| Never married | 33.6% | 27.7% |
| Married | 54.6% | 46.8% |
| Separated | 0.0% | 0.8% |
| Widowed | 3.7% | 15.0% |
| Divorced | 8.0% | 9.7% |
Education
Less than 9th grade
2.4%
Some HS, no diploma
2.8%
HS graduate
34.3%
Some college, no degree
21.7%
Associate's degree
14.4%
Bachelor's degree
18.1%
Graduate / professional
6.3%
| Metric | % |
|---|---|
| HS diploma or higher | 94.8% |
| Bachelor's or higher | 24.4% |
School enrollment (ages 3–17)
| Type | Count | % |
|---|---|---|
| Nursery / preschool | 108 | 4.0% |
| Kindergarten | 217 | 8.0% |
| Elementary school | 1,375 | 50.6% |
| High school | 644 | 23.7% |
| College / grad school | 372 | 13.7% |
Employment
Industry of employment
Education & healthcare
24.6%
Manufacturing
15.3%
Retail trade
10.7%
Transportation & utilities
8.0%
Finance & real estate
8.0%
Wholesale trade
5.8%
Agriculture & mining
5.5%
Arts, food & hospitality
5.5%
Construction
4.2%
Other services
4.0%
Professional & management
3.6%
Information
2.4%
Public administration
2.3%
Occupation
| Category | % |
|---|---|
| Management, business & arts | 32.4% |
| Service | 17.4% |
| Sales & office | 22.3% |
| Natural resources & construction | 7.8% |
| Production & transportation | 20.0% |
Employment type
| Type | % |
|---|---|
| Private sector | 79.3% |
| Government | 10.7% |
| Self-employed | 9.9% |
| Unpaid family workers | 0.0% |
Commute
| Method | % |
|---|---|
| Drive alone | 82.4% |
| Carpool | 7.7% |
| Public transit | 0.5% |
| Walk | 3.0% |
| Work from home | 5.5% |
| Other means | 0.8% |
| Avg commute (minutes) | 11.4 |
Poverty
All people
8.0%
Under 18 years
4.6%
18 and over
9.0%
Married-couple families
3.2%
Female-led households
19.7%
Income support
| Source | % of households |
|---|---|
| Social Security | 33.4% |
| Retirement income | 22.2% |
| Supplemental Security | 7.4% |
| Cash public assistance | 0.7% |
| Food stamps / SNAP | 7.5% |
Health indicators
| Condition | % |
|---|---|
| Obesity | 34.3% |
| High blood pressure | 34.3% |
| High cholesterol | 33.2% |
| Diabetes | 10.1% |
| Heart disease | 7.2% |
| Stroke | 3.3% |
| Asthma | 9.2% |
| Arthritis | 26.6% |
| Kidney disease | 3.1% |
| Pulmonary disease | 7.1% |
| Cancer | 7.8% |
| Behavior / access | % |
|---|---|
| Smoking | 17.2% |
| Binge drinking | 22.2% |
| No physical activity | 23.2% |
| Less than 7 hrs sleep | 30.3% |
| Depression | 17.4% |
| Fair or poor health | 12.9% |
| Poor mental health | 13.0% |
| Poor physical health | 9.8% |
| No health insurance | 9.2% |
| Visited doctor (checkup) | 74.7% |
| Visited dentist | 64.5% |
| Cholesterol screening | 89.2% |
| Teeth loss | 13.5% |
Veterans & disability
| Veterans | Count | % |
|---|---|---|
| Civilian veterans | 587 | 6.3% |
| Disability | % |
|---|---|
| Any disability | 13.3% |
| Under 18 | 3.1% |
| 18–64 years | 14.3% |
| 65 and over | 22.2% |
Health insurance coverage
| Type | % |
|---|---|
| Private insurance | 70.9% |
| Public insurance | 43.2% |
| No insurance | 3.3% |
| Uninsured under 19 | 0.5% |
Language & origin
Language spoken at home (age 5+)
| Language | Count | % |
|---|---|---|
| English only | 11,598 | 95.3% |
| Spanish | 194 | 1.7% |
| Other Indo-European | 91 | 0.8% |
| Asian & Pacific Islander | 0 | 0.0% |
| Other languages | 0 | 0.0% |
Place of birth & citizenship
| Origin | Count | % |
|---|---|---|
| Native born (US) | 11,828 | 97.2% |
| Born in same state | 11,784 | 96.8% |
| Born in different state | 9,514 | 78.2% |
| Foreign born | 44 | 0.4% |
| Naturalized citizen | 346 | 2.8% |
| Not a US citizen | 156 | 45.1% |
Ancestry
| Ancestry | Count | % |
|---|---|---|
| Italian | 2,281 | 18.7% |
| Arab | 552 | 4.5% |
| French | 523 | 4.3% |
| Dutch | 192 | 1.6% |
| Ancestry | Count | % |
|---|---|---|
| Polish | 173 | 1.4% |
| English | 140 | 1.1% |
| Norwegian | 43 | 0.4% |
| German | 7 | 0.1% |
Technology access
| Metric | % of households |
|---|---|
| Computer access | 42.8% |
| Internet access | 91.2% |
Source: U.S. Census Bureau, American Community Survey 2025 estimates.
Frequently asked questions about ZIP code 51401
What city is ZIP code 51401 in?
ZIP code 51401 is primarily assigned to Carroll, Iowa.
What county is ZIP code 51401 in?
ZIP code 51401 falls within Carroll County, Iowa.
What is the typical home value in ZIP code 51401?
The median home value in ZIP code 51401 is $182,000.
What is the population of ZIP code 51401?
ZIP code 51401 has an estimated population of 12,174 residents, with a density of 72 people per square mile.
What is the median household income in ZIP code 51401?
The median household income in ZIP code 51401 is $66,768, below the national median of ~$75,000.
What timezone is ZIP code 51401 in?
ZIP code 51401 observes the CST timezone.