51555 ZIP Code — Missouri Valley, IA
Harrison County, Iowa
ZIP code 51555 is located in Missouri Valley, Iowa, within Harrison County. It covers approximately 146.11 square miles and serves a population of 4,858 residents. This is a standard ZIP code in the Central (CT) timezone, served by area code 712.
About ZIP code 51555
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 $157,200. Owner-occupancy sits near the national average at 73%.
Median household income is $79,592. The poverty rate of 6% is below the national average. 30% 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 24 minutes is near the national average.
Educational attainment is near the national average, with 22% of residents holding a bachelor's degree or higher.
4,858
population
146.11
sq mi land
Standard
ZIP type
Central (CT)
timezone
51555 ZIP code map
Cities in ZIP code 51555
Below are the cities the US Postal Service accepts for ZIP code 51555. Using any city not on this list may result in mail delivery delays.
| City | Status |
|---|---|
| Missouri Valley | Acceptable |
| Missouri Valley | Preferred |
Nearby ZIP codes
68023 Fort Calhoun (7.1 mi)
51556 Modale (7.4 mi)
51546 Logan (10.8 mi)
51526 Crescent (12.7 mi)
68112 Omaha (12.9 mi)
51557 Mondamin (13 mi)
68008 Blair (13.1 mi)
68152 Omaha (13.6 mi)
68122 Omaha (14.5 mi)
68142 Omaha (15.4 mi)
51559 Neola (15.7 mi)
68034 Kennard (16.3 mi)
Demographics
updated 05/2026
| Population | |
|---|---|
| Total population | 4,858 |
| Population density | 33 / sq mi |
| State FIPS | 19 |
| County FIPS | 085 |
| Geography | |
|---|---|
| Land area | 146.11 sq mi |
| Water area | 2.44 sq mi |
| Latitude | 41.5587 |
| Longitude | -95.9390 |
| 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 | 38.1% | 37.9% | 40.1% |
| $50k – $100k | 34.7% | 35.3% | 33.4% |
| $100k – $200k | 24.0% | 23.0% | 21.5% |
| Over $200k | 3.1% | 3.8% | 5.0% |
Demographics & statistics
4,858
Population
33
People per sq mi
42.1
Median age
$79,592
Median household income
$37,441
Per capita income
$157,200
Median home value
$767
Median monthly rent
73.4%
Home ownership
5.9%
Poverty rate
2.9%
Unemployment
1,701
Housing units
21.8%
Bachelor's or higher
Age distribution
Male
Female
101
Under 5
113
106
5–9
118
202
10–14
227
160
15–19
179
125
20–24
140
224
25–34
252
300
35–44
337
331
45–54
371
153
55–59
172
174
60–64
196
211
65–74
236
142
75–84
159
61
85+
68
← Male
Female →
Age summary
| Group | Count | % |
|---|---|---|
| Under 18 | 1,046 | 21.5% |
| 18 and over | 3,812 | 78.5% |
| 65 and over | 877 | 18.1% |
| Median age | 42.1 years | |
Race & ethnicity
White
90.3%
Two or more races
5.5%
Hispanic or Latino
3.6%
American Indian / Alaska Native
0.4%
Asian
0.2%
Other race
0.1%
| Group | Count | % |
|---|---|---|
| White | 4,548 | 90.3% |
| Two or more races | 276 | 5.5% |
| Hispanic or Latino | 180 | 3.6% |
| American Indian / Alaska Native | 21 | 0.4% |
| Asian | 9 | 0.2% |
| Other race | 4 | 0.1% |
Household income
| Income range | This ZIP | County avg | State avg |
|---|---|---|---|
| Under $50k | 38.1% | 37.9% | 40.1% |
| $50k – $100k | 34.7% | 35.3% | 33.4% |
| $100k – $200k | 24.0% | 23.0% | 21.5% |
| Over $200k | 3.1% | 3.8% | 5.0% |
Under $10k
1.9%
$10k–$15k
3.1%
$15k–$25k
8.5%
$25k–$35k
6.0%
$35k–$50k
8.8%
$50k–$75k
18.1%
$75k–$100k
19.1%
$100k–$150k
21.1%
$150k–$200k
7.2%
$200k+
6.2%
| Range | % of households |
|---|---|
| Under $10k | 1.9% |
| $10k–$15k | 3.1% |
| $15k–$25k | 8.5% |
| $25k–$35k | 6.0% |
| $35k–$50k | 8.8% |
| $50k–$75k | 18.1% |
| $75k–$100k | 19.1% |
| $100k–$150k | 21.1% |
| $150k–$200k | 7.2% |
| $200k+ | 6.2% |
| Median income | $79,592 |
Housing
Home values
Under $50k
6.8%
$50k–$100k
18.9%
$100k–$150k
21.9%
$150k–$200k
12.1%
$200k–$300k
20.6%
$300k–$500k
13.3%
$500k–$1M
5.6%
$1M+
0.7%
Housing overview
| Metric | Value |
|---|---|
| Median home value | $157,200 |
| Median rent / month | $767 |
| Owner occupied | 73.4% |
| Renter occupied | 26.6% |
| Vacant | 9.8% |
| Single-family detached | 79.2% |
| Large apartment buildings | 4.9% |
| Mobile homes | 6.9% |
| Median rooms | 6.2 |
| Avg household size (owned) | 2.47 |
Year built
| Era | % |
|---|---|
| 2020 or later | 0.6% |
| 2010–2019 | 1.6% |
| 2000–2009 | 6.7% |
| 1990–1999 | 9.7% |
| 1980–1989 | 6.7% |
| 1970–1979 | 15.3% |
| 1960–1969 | 10.5% |
| 1950–1959 | 4.6% |
| 1940–1949 | 5.0% |
| 1939 or earlier | 39.3% |
Bedrooms
| Size | % of units |
|---|---|
| No bedroom (studio) | 0.6% |
| 1 bedroom | 10.5% |
| 2 bedrooms | 29.3% |
| 3 bedrooms | 36.8% |
| 4 bedrooms | 16.4% |
| 5+ bedrooms | 6.4% |
Vehicles per household
| Vehicles | % of households |
|---|---|
| No vehicle | 5.6% |
| 1 vehicle | 26.1% |
| 2 vehicles | 32.7% |
| 3 or more | 35.6% |
Heating fuel
| Fuel type | % |
|---|---|
| Utility gas | 44.0% |
| Electricity | 36.4% |
| Propane / LP gas | 16.9% |
| Fuel oil | 0.7% |
| Wood | 0.2% |
| Solar | 0.3% |
| No fuel used | 0.7% |
Households & families
| Household type | Count | % |
|---|---|---|
| Married-couple family | 1,108 | 54.9% |
| Cohabiting couple | 109 | 5.4% |
| Male householder, no spouse | 333 | 16.5% |
| Female householder, no spouse | 469 | 23.2% |
| Households with children under 18 | 586 | 29.0% |
| Households with seniors (65+) | 585 | 29.0% |
| Average household size | 2.35 | |
Marital status
| Status | Male | Female |
|---|---|---|
| Never married | 23.8% | 20.7% |
| Married | 60.9% | 54.4% |
| Separated | 2.0% | 3.2% |
| Widowed | 3.6% | 11.5% |
| Divorced | 9.7% | 10.2% |
Education
Less than 9th grade
1.2%
Some HS, no diploma
5.9%
HS graduate
35.1%
Some college, no degree
26.2%
Associate's degree
9.8%
Bachelor's degree
13.7%
Graduate / professional
8.1%
| Metric | % |
|---|---|
| HS diploma or higher | 92.9% |
| Bachelor's or higher | 21.8% |
School enrollment (ages 3–17)
| Type | Count | % |
|---|---|---|
| Nursery / preschool | 57 | 5.3% |
| Kindergarten | 44 | 4.1% |
| Elementary school | 563 | 52.2% |
| High school | 249 | 23.1% |
| College / grad school | 166 | 15.4% |
Employment
Industry of employment
Education & healthcare
29.3%
Retail trade
11.4%
Construction
9.7%
Manufacturing
9.1%
Finance & real estate
9.1%
Transportation & utilities
7.3%
Arts, food & hospitality
6.7%
Professional & management
4.9%
Agriculture & mining
4.2%
Wholesale trade
2.7%
Other services
2.5%
Public administration
1.7%
Information
1.3%
Occupation
| Category | % |
|---|---|
| Management, business & arts | 37.0% |
| Service | 14.9% |
| Sales & office | 22.4% |
| Natural resources & construction | 11.5% |
| Production & transportation | 14.2% |
Employment type
| Type | % |
|---|---|
| Private sector | 80.4% |
| Government | 13.9% |
| Self-employed | 5.7% |
| Unpaid family workers | 0.0% |
Commute
| Method | % |
|---|---|
| Drive alone | 77.9% |
| Carpool | 8.4% |
| Public transit | 0.5% |
| Walk | 3.9% |
| Work from home | 9.0% |
| Other means | 0.2% |
| Avg commute (minutes) | 23.8 |
Poverty
All people
5.9%
Under 18 years
4.4%
18 and over
6.3%
Married-couple families
0.8%
Female-led households
8.1%
Income support
| Source | % of households |
|---|---|
| Social Security | 30.2% |
| Retirement income | 22.8% |
| Supplemental Security | 4.0% |
| Cash public assistance | 0.7% |
| Food stamps / SNAP | 9.8% |
Health indicators
| Condition | % |
|---|---|
| Obesity | 41.5% |
| High blood pressure | 35.3% |
| High cholesterol | 34.4% |
| Diabetes | 10.8% |
| Heart disease | 7.2% |
| Stroke | 3.4% |
| Asthma | 9.6% |
| Arthritis | 27.0% |
| Kidney disease | 3.1% |
| Pulmonary disease | 7.8% |
| Cancer | 7.3% |
| Behavior / access | % |
|---|---|
| Smoking | 19.4% |
| Binge drinking | 21.0% |
| No physical activity | 26.9% |
| Less than 7 hrs sleep | 32.1% |
| Depression | 18.8% |
| Fair or poor health | 14.5% |
| Poor mental health | 13.9% |
| Poor physical health | 10.6% |
| No health insurance | 9.8% |
| Visited doctor (checkup) | 74.5% |
| Visited dentist | 65.9% |
| Cholesterol screening | 88.3% |
| Teeth loss | 15.0% |
Veterans & disability
| Veterans | Count | % |
|---|---|---|
| Civilian veterans | 306 | 8.0% |
| Disability | % |
|---|---|
| Any disability | 15.5% |
| Under 18 | 12.5% |
| 18–64 years | 9.5% |
| 65 and over | 41.8% |
Health insurance coverage
| Type | % |
|---|---|
| Private insurance | 70.1% |
| Public insurance | 38.9% |
| No insurance | 2.1% |
| Uninsured under 19 | 1.6% |
Language & origin
Language spoken at home (age 5+)
| Language | Count | % |
|---|---|---|
| English only | 4,644 | 95.6% |
| Spanish | 19 | 0.4% |
| Other Indo-European | 19 | 0.4% |
| Asian & Pacific Islander | 0 | 0.0% |
| Other languages | 0 | 0.0% |
Place of birth & citizenship
| Origin | Count | % |
|---|---|---|
| Native born (US) | 4,815 | 99.1% |
| Born in same state | 4,805 | 98.9% |
| Born in different state | 2,338 | 48.1% |
| Foreign born | 10 | 0.2% |
| Naturalized citizen | 43 | 0.9% |
| Not a US citizen | 10 | 23.3% |
Ancestry
| Ancestry | Count | % |
|---|---|---|
| Italian | 753 | 15.5% |
| French | 475 | 9.8% |
| Dutch | 220 | 4.5% |
| English | 191 | 3.9% |
| Ancestry | Count | % |
|---|---|---|
| Arab | 123 | 2.5% |
| Polish | 92 | 1.9% |
| Irish | 8 | 0.2% |
Technology access
| Metric | % of households |
|---|---|
| Computer access | 41.6% |
| Internet access | 92.5% |
Source: U.S. Census Bureau, American Community Survey 2025 estimates.
Frequently asked questions about ZIP code 51555
What city is ZIP code 51555 in?
ZIP code 51555 is primarily assigned to Missouri Valley, Iowa.
What county is ZIP code 51555 in?
ZIP code 51555 falls within Harrison County, Iowa.
What is the typical home value in ZIP code 51555?
The median home value in ZIP code 51555 is $157,200.
What is the population of ZIP code 51555?
ZIP code 51555 has an estimated population of 4,858 residents, with a density of 33 people per square mile.
What is the median household income in ZIP code 51555?
The median household income in ZIP code 51555 is $79,592, above the national median of ~$75,000.
What timezone is ZIP code 51555 in?
ZIP code 51555 observes the CST timezone.