51556 ZIP Code — Modale, IA
Harrison County, Iowa
ZIP code 51556 is located in Modale, Iowa, within Harrison County. It covers approximately 49.46 square miles and serves a population of 359 residents. This is a standard ZIP code in the Central (CT) timezone, served by area code 712.
About ZIP code 51556
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 $133,300. Owner-occupancy is high at 88%, well above the national average.
Median household income is $71,250.
The dominant occupation class is management, business, and professional, with education and healthcare as the leading industry. The average commute of 31 minutes is near the national average.
Educational attainment is near the national average, with 26% of residents holding a bachelor's degree or higher.
359
population
49.46
sq mi land
Standard
ZIP type
Central (CT)
timezone
51556 ZIP code map
Cities in ZIP code 51556
Below are the cities the US Postal Service accepts for ZIP code 51556. Using any city not on this list may result in mail delivery delays.
| City | Status |
|---|---|
| Modale | Preferred |
Nearby ZIP codes
51557 Mondamin (6.5 mi)
51555 Missouri Valley (7.4 mi)
68008 Blair (11.3 mi)
51564 Pisgah (11.8 mi)
68023 Fort Calhoun (12.2 mi)
51546 Logan (13.3 mi)
68061 Tekamah (14.3 mi)
68029 Herman (15.1 mi)
68034 Kennard (17 mi)
51579 Woodbine (18.2 mi)
51523 Blencoe (18.8 mi)
68002 Arlington (19 mi)
Demographics
updated 05/2026
| Population | |
|---|---|
| Total population | 359 |
| Population density | 7 / sq mi |
| State FIPS | 19 |
| County FIPS | 085 |
| Geography | |
|---|---|
| Land area | 49.46 sq mi |
| Water area | 1.33 sq mi |
| Latitude | 41.6466 |
| Longitude | -96.0192 |
| 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 | 40.1% | 37.9% | 40.1% |
| $50k – $100k | 20.3% | 35.3% | 33.4% |
| $100k – $200k | 29.9% | 23.0% | 21.5% |
| Over $200k | 9.6% | 3.8% | 5.0% |
Demographics & statistics
359
Population
7
People per sq mi
52.6
Median age
$71,250
Median household income
$43,083
Per capita income
$133,300
Median home value
$950
Median monthly rent
88.4%
Home ownership
9.6%
Poverty rate
7.8%
Unemployment
181
Housing units
25.5%
Bachelor's or higher
Age distribution
Male
Female
5
Under 5
3
6
5–9
5
7
10–14
5
5
15–19
3
15
20–24
11
26
25–34
19
10
35–44
8
32
45–54
24
47
55–59
34
18
60–64
14
23
65–74
17
10
75–84
8
2
85+
2
← Male
Female →
Age summary
| Group | Count | % |
|---|---|---|
| Under 18 | 37 | 10.3% |
| 18 and over | 322 | 89.7% |
| 65 and over | 62 | 17.3% |
| Median age | 52.6 years | |
Race & ethnicity
White
97.2%
Asian
1.9%
Two or more races
0.8%
| Group | Count | % |
|---|---|---|
| White | 349 | 97.2% |
| Asian | 7 | 1.9% |
| Two or more races | 3 | 0.8% |
Household income
| Income range | This ZIP | County avg | State avg |
|---|---|---|---|
| Under $50k | 40.1% | 37.9% | 40.1% |
| $50k – $100k | 20.3% | 35.3% | 33.4% |
| $100k – $200k | 29.9% | 23.0% | 21.5% |
| Over $200k | 9.6% | 3.8% | 5.0% |
Under $10k
7.2%
$10k–$15k
1.1%
$15k–$25k
8.8%
$25k–$35k
6.6%
$35k–$50k
11.0%
$50k–$75k
15.5%
$75k–$100k
14.4%
$100k–$150k
21.5%
$150k–$200k
4.4%
$200k+
9.4%
| Range | % of households |
|---|---|
| Under $10k | 7.2% |
| $10k–$15k | 1.1% |
| $15k–$25k | 8.8% |
| $25k–$35k | 6.6% |
| $35k–$50k | 11.0% |
| $50k–$75k | 15.5% |
| $75k–$100k | 14.4% |
| $100k–$150k | 21.5% |
| $150k–$200k | 4.4% |
| $200k+ | 9.4% |
| Median income | $71,250 |
Housing
Home values
Under $50k
22.5%
$50k–$100k
16.9%
$100k–$150k
11.9%
$150k–$200k
7.5%
$200k–$300k
35.0%
$300k–$500k
3.1%
$500k–$1M
3.1%
Housing overview
| Metric | Value |
|---|---|
| Median home value | $133,300 |
| Median rent / month | $950 |
| Owner occupied | 88.4% |
| Renter occupied | 11.6% |
| Vacant | 10.4% |
| Single-family detached | 80.2% |
| Large apartment buildings | 0.0% |
| Mobile homes | 15.3% |
| Median rooms | 6.1 |
| Avg household size (owned) | 2.06 |
Year built
| Era | % |
|---|---|
| 2020 or later | 0.0% |
| 2010–2019 | 4.0% |
| 2000–2009 | 8.9% |
| 1990–1999 | 4.5% |
| 1980–1989 | 5.4% |
| 1970–1979 | 19.3% |
| 1960–1969 | 2.0% |
| 1950–1959 | 17.3% |
| 1940–1949 | 0.5% |
| 1939 or earlier | 38.1% |
Bedrooms
| Size | % of units |
|---|---|
| No bedroom (studio) | 0.0% |
| 1 bedroom | 15.3% |
| 2 bedrooms | 21.8% |
| 3 bedrooms | 42.6% |
| 4 bedrooms | 18.3% |
| 5+ bedrooms | 2.0% |
Vehicles per household
| Vehicles | % of households |
|---|---|
| No vehicle | 1.7% |
| 1 vehicle | 23.2% |
| 2 vehicles | 28.2% |
| 3 or more | 47.0% |
Heating fuel
| Fuel type | % |
|---|---|
| Utility gas | 3.3% |
| Electricity | 44.2% |
| Propane / LP gas | 52.5% |
Households & families
| Household type | Count | % |
|---|---|---|
| Married-couple family | 87 | 48.1% |
| Cohabiting couple | 16 | 8.8% |
| Male householder, no spouse | 46 | 25.4% |
| Female householder, no spouse | 32 | 17.7% |
| Households with children under 18 | 21 | 11.6% |
| Households with seniors (65+) | 44 | 24.3% |
| Average household size | 1.98 | |
Marital status
| Status | Male | Female |
|---|---|---|
| Never married | 35.9% | 21.3% |
| Married | 46.9% | 67.6% |
| Separated | 1.0% | 0.7% |
| Widowed | 1.6% | 0.7% |
| Divorced | 14.6% | 9.6% |
Education
Less than 9th grade
2.4%
Some HS, no diploma
4.1%
HS graduate
43.2%
Some college, no degree
19.7%
Associate's degree
5.1%
Bachelor's degree
18.7%
Graduate / professional
6.8%
| Metric | % |
|---|---|
| HS diploma or higher | 93.5% |
| Bachelor's or higher | 25.5% |
School enrollment (ages 3–17)
| Type | Count | % |
|---|---|---|
| Nursery / preschool | 2 | 3.8% |
| Kindergarten | 1 | 1.9% |
| Elementary school | 20 | 37.7% |
| High school | 10 | 18.9% |
| College / grad school | 20 | 37.7% |
Employment
Industry of employment
Education & healthcare
22.8%
Construction
21.2%
Retail trade
11.6%
Professional & management
11.6%
Finance & real estate
9.5%
Wholesale trade
5.8%
Information
4.8%
Manufacturing
3.7%
Agriculture & mining
3.2%
Public administration
2.1%
Transportation & utilities
1.6%
Arts, food & hospitality
1.1%
Other services
1.1%
Occupation
| Category | % |
|---|---|
| Management, business & arts | 38.1% |
| Service | 11.1% |
| Sales & office | 18.5% |
| Natural resources & construction | 20.1% |
| Production & transportation | 12.2% |
Employment type
| Type | % |
|---|---|
| Private sector | 83.1% |
| Government | 14.8% |
| Self-employed | 2.1% |
| Unpaid family workers | 0.0% |
Commute
| Method | % |
|---|---|
| Drive alone | 76.6% |
| Carpool | 2.7% |
| Public transit | 0.0% |
| Walk | 1.6% |
| Work from home | 19.0% |
| Other means | 0.0% |
| Avg commute (minutes) | 30.9 |
Poverty
All people
9.6%
Under 18 years
11.8%
18 and over
9.3%
Married-couple families
5.7%
Female-led households
5.6%
Income support
| Source | % of households |
|---|---|
| Social Security | 28.2% |
| Retirement income | 21.5% |
| Supplemental Security | 2.8% |
| Cash public assistance | 0.6% |
| Food stamps / SNAP | 4.4% |
Health indicators
| Condition | % |
|---|---|
| Obesity | 40.1% |
| High blood pressure | 34.1% |
| High cholesterol | 34.6% |
| Diabetes | 10.0% |
| Heart disease | 6.7% |
| Stroke | 3.1% |
| Asthma | 9.2% |
| Arthritis | 25.8% |
| Kidney disease | 2.9% |
| Pulmonary disease | 6.8% |
| Cancer | 7.4% |
| Behavior / access | % |
|---|---|
| Smoking | 17.4% |
| Binge drinking | 21.9% |
| No physical activity | 24.5% |
| Less than 7 hrs sleep | 31.3% |
| Depression | 18.0% |
| Fair or poor health | 12.5% |
| Poor mental health | 13.1% |
| Poor physical health | 9.5% |
| No health insurance | 8.8% |
| Visited doctor (checkup) | 74.4% |
| Visited dentist | 69.3% |
| Cholesterol screening | 89.0% |
| Teeth loss | 12.4% |
Veterans & disability
| Veterans | Count | % |
|---|---|---|
| Civilian veterans | 35 | 10.9% |
| Disability | % |
|---|---|
| Any disability | 19.8% |
| Under 18 | 10.8% |
| 18–64 years | 14.6% |
| 65 and over | 46.8% |
Health insurance coverage
| Type | % |
|---|---|
| Private insurance | 69.9% |
| Public insurance | 35.7% |
| No insurance | 5.8% |
| Uninsured under 19 | 7.7% |
Language & origin
Language spoken at home (age 5+)
| Language | Count | % |
|---|---|---|
| English only | 351 | 97.8% |
| 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 | 97.5% |
| Born in same state | 350 | 97.5% |
| Born in different state | 129 | 35.9% |
| Foreign born | 0 | 0.0% |
| Naturalized citizen | 9 | 2.5% |
| Not a US citizen | 0 | 0.0% |
Ancestry
| Ancestry | Count | % |
|---|---|---|
| French | 84 | 23.4% |
| Italian | 74 | 20.6% |
| Dutch | 15 | 4.2% |
| Polish | 13 | 3.6% |
| Ancestry | Count | % |
|---|---|---|
| English | 10 | 2.8% |
| Arab | 10 | 2.8% |
| German | 1 | 0.3% |
Technology access
| Metric | % of households |
|---|---|
| Computer access | 50.4% |
| Internet access | 92.3% |
Source: U.S. Census Bureau, American Community Survey 2025 estimates.
Frequently asked questions about ZIP code 51556
What city is ZIP code 51556 in?
ZIP code 51556 is primarily assigned to Modale, Iowa.
What county is ZIP code 51556 in?
ZIP code 51556 falls within Harrison County, Iowa.
Is ZIP code 51556 mostly owner-occupied?
88% of occupied units in ZIP code 51556 are owner-occupied, well above the national average.
Does ZIP code 51556 have a large veteran population?
11% of civilians in ZIP code 51556 are veterans, above the national average of ~7%.
What is the typical home value in ZIP code 51556?
The median home value in ZIP code 51556 is $133,300.
What is the population of ZIP code 51556?
ZIP code 51556 has an estimated population of 359 residents, with a density of 7 people per square mile.
What timezone is ZIP code 51556 in?
ZIP code 51556 observes the CST timezone.