Postal Codes

51551 ZIP Code

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ZIP code 51551 covers Malvern, Iowa, with a population of about 1,877 and a median household income of $82,218.

Population
1,87723 per square mile
Median age
423.3 points above the US average
Median household income
$82,2181.1× the Iowa median
Poverty rate
4.8%7.6 points below the US average
Typical home value
$253,501up 21.3% in five years
Median rent
$8679% below the Iowa median
Degree or higher
29.4%5.6 points below the US average
Homeownership
87.1%22.1 points above the US average
Time zone
Central UTC-06:00observes daylight saving time
Businesses
37

Where 51551 is

Malvern, Iowa — the area the Census Bureau draws for this ZIP code. ZIP codes are sets of delivery routes rather than areas, so this is the Census approximation of one, not a Postal Service boundary.

People and households

American Community Survey 2019–2023 five-year estimates

Population1,877
Median age42
Family households62.6%
Born outside the US0.3%
Speaks a language other than English at home0.6%
White (non-Hispanic)96.4%
Black (non-Hispanic)0.1%
Asian (non-Hispanic)0.3%
Hispanic or Latino1.4%
Veterans10.1%
Population by age
MaleFemale0-45-910-1415-1920-2425-3435-4445-5455-6465-7475-8485+
Income and poverty

American Community Survey 2019–2023 five-year estimates

Median household income$82,218
Income per person$46,939
Poverty rate4.8%
Households on SNAP or cash assistance6.8%

Household income distribution

Under $10k2.6%
$10–15k2.1%
$15–20k1.5%
$20–25k5.6%
$25–30k1.7%
$30–35k2.7%
$35–40k1.8%
$40–45k2.0%
$45–50k3.6%
$50–60k6.1%
$60–75k8.8%
$75–100k22.8%
$100–125k12.9%
$125–150k4.4%
$150–200k9.4%
$200k or more11.9%

Income as declared to the IRS

Filed returns rather than survey responses, so this counts tax units and not households.

Tax returns filed860
Mean adjusted gross income$82,188
Returns declaring $200,000 or more7%
Returns, under $25k19.8%
Returns, $25k–$50k22.1%
Returns, $50k–$75k17.4%
Returns, $75k–$100k14.0%
Returns, $100k–$200k19.8%
Returns, $200k or more7.0%
Housing

American Community Survey 2019–2023 five-year estimates

Median home value$184,300
Median gross rent$867
Rent as a share of household income17.2%
Owner-occupied87.1%
Vacant homes13.1%
Median year built1946

What the homes are

Detached house89.2%
Attached house0.7%
2 to 4 units2.5%
20 or more units2.8%
Mobile home4.9%
Home values and rents today

Zillow Home Value Index and Zillow Observed Rent Index, courtesy of Zillow. Monthly and current, where the Census figures above are a five-year average and are capped at $2,000,000.

Typical home value$253,501as of 2026-07
Typical home value, 1 yearup 2.4%
Typical home value, 5 yearsup 21.3%
Typical home value, 10 yearsup 91.3%
Typical home value since 2000
200920172026$253,501$100,325

$108,066 in 2009 to $253,501 in 2026.

Work, commuting and education

American Community Survey 2019–2023 five-year estimates

Unemployment rate4.2%
Bachelor's degree or higher29.4%
High school diploma or higher93.8%
Works from home10.3%
Drives to work alone76.3%
Takes public transport0%
Commutes 45 minutes or more18.1%
Health

CDC PLACES 2025 release, model-based estimates. These are modelled small-area estimates for adults, not counts of diagnosed cases.

Obesity39.9% 6.5 pts above the national average of 33.4%
Diagnosed diabetes11.9% same as the national average of 12%
Currently smokes15.2% 2 pts above the national average of 13.2%
High blood pressure36.8% 2.7 pts above the national average of 34.1%
Fair or poor general health17.6% 2.7 pts below the national average of 20.3%
No health insurance (18–64)6.5% 4.8 pts below the national average of 11.3%
Depression20.3% 1.6 pts below the national average of 21.9%
No leisure-time physical activity24.5% 0.9 pts below the national average of 25.4%
Arthritis28.9% 3.8 pts above the national average of 25.1%
Binge drinking19.9% 3.9 pts above the national average of 16%
Taking blood pressure medication79.5% 4.8 pts above the national average of 74.7%
Cancer (non-skin)9.8% 2.1 pts above the national average of 7.7%
Current asthma10% same as the national average of 10.4%
Coronary heart disease7.3% 1.1 pts above the national average of 6.2%
Routine check-up in past year78% 1.3 pts above the national average of 76.7%
Cholesterol screening85.3% 0.6 pts below the national average of 85.9%
Cognitive disability13.2% 1.6 pts below the national average of 14.8%
Colorectal screening69.4% 5.1 pts above the national average of 64.3%
COPD7.5% 0.9 pts above the national average of 6.6%
Visited a dentist67.9% 6.6 pts above the national average of 61.3%
Any disability28.4% 2.3 pts below the national average of 30.7%
Lacks emotional support22.4% 2.4 pts below the national average of 24.8%
Food insecurity10.6% 6.5 pts below the national average of 17.1%
Received food stamps9% 5.3 pts below the national average of 14.3%
Hearing disability8.2% 1.5 pts above the national average of 6.7%
High cholesterol38.4% 2.2 pts above the national average of 36.2%
Housing insecurity8.4% 5.4 pts below the national average of 13.8%
Independent living disability7.4% 1 pts below the national average of 8.4%
Lacks transport6.2% 3 pts below the national average of 9.2%
Loneliness30.9% 3.5 pts below the national average of 34.4%
Mammography use78.6% 2.7 pts above the national average of 75.9%
Poor mental health (14+ days)16.1% 0.7 pts below the national average of 16.8%
Mobility disability13.4% 0.6 pts below the national average of 14%
Poor physical health (14+ days)13% 0.5 pts below the national average of 13.5%
Self-care disability3.5% 0.5 pts below the national average of 4%
Utility shut-off threat5.8% 3 pts below the national average of 8.8%
Sleeps under 7 hours30.4% 6 pts below the national average of 36.4%
Stroke3.6% same as the national average of 3.4%
All natural teeth lost9.6% 3.4 pts below the national average of 13%
Vision disability4.2% 1.4 pts below the national average of 5.6%
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Business and employment

Census ZIP Code Business Patterns 2022

Business establishments37
People employed264
Annual payroll$11,531,000
Natural hazard risk

FEMA National Risk Index, estimated for this ZIP code from census tract data — the NRI is not published per ZIP.

Overall riskHigher than 66.7% of US census tracts
FEMA ratingRelatively Moderate
Expected annual loss75.3 out of 100
Community resilience73.3 out of 100

By hazard

Score is out of 100 and is the area-weighted average across the census tracts this ZIP code covers. The rating beside it is the highest any one of those tracts carries.

Drought97.1Relatively Moderate at its worst in this ZIP code
Hail96.3Relatively High at its worst in this ZIP code
Landslide91.6Relatively Moderate at its worst in this ZIP code
Tornado90.7Relatively High at its worst in this ZIP code
Strong wind89.7Relatively High at its worst in this ZIP code
Wildfire80.8Relatively Moderate at its worst in this ZIP code
Winter weather79.5Relatively High at its worst in this ZIP code
Ice storm77.3Relatively Moderate at its worst in this ZIP code
Cold wave69.8Relatively Moderate at its worst in this ZIP code
River flooding66Relatively Moderate at its worst in this ZIP code
Heat wave62.6Relatively Moderate at its worst in this ZIP code
Lightning50.3Relatively Moderate at its worst in this ZIP code
Earthquake13.3Very Low at its worst in this ZIP code
Compared with Iowa and the United States

State and national columns are figures for those areas, not for this ZIP code. American Community Survey 2019–2023 five-year estimates

This ZIPIowaUnited States
Median household income$82,218$73,147$78,538
Income per person$46,939$39,728$43,289
Poverty rate4.8%11%12.4%
Median home value$184,300$195,900$303,400
Median gross rent$867$949$1,348
Homeownership87.1%71.5%65%
Bachelor's degree or higher29.4%30.9%35%
Unemployment rate4.2%3.6%5.2%
Works from home10.3%10.4%13.5%
Born outside the US0.3%5.7%13.9%
Median age4238.638.7
Climate

NOAA US Climate Normals 1991-2020, from the nearest weather station with a full year of records. The station and its distance are named above, because a station forty kilometres away describes somewhere else.

Weather stationGLENWOOD 3SW, IA US15.9 km away
Rain in a year35 in
Snow in a year24 in

Average high and low by month

January33°F / 12.2°F0.66 in rain, 8.2 in snow
February38.2°F / 16.4°F1.03 in rain, 7 in snow
March51.5°F / 27.5°F2.03 in rain, 3.4 in snow
April63.9°F / 38°F3.73 in rain, 0.4 in snow
May74.2°F / 50.2°F5.19 in rain
June83.4°F / 61.2°F5.96 in rain
July86.9°F / 64.7°F4.31 in rain
August85.1°F / 62.1°F3.81 in rain
September79.4°F / 52.7°F3.32 in rain
October66.6°F / 39.9°F2.3 in rain
November50.6°F / 27.7°F1.3 in rain, 1.3 in snow
December37.6°F / 17.5°F1.16 in rain, 3.4 in snow
Access to food

USDA Food Access Research Atlas, estimated for this ZIP code from census tract data. Each figure is the share of the ZIP code's land area that falls in a tract carrying that flag.

Low income and far from a supermarketNone of this ZIP code
Far from a supermarketNone of this ZIP code
No vehicle and far from a supermarketNone of this ZIP code
School districts

NCES Geographic Relationship File 2025, which states the association between each district and each ZIP code tabulation area directly. Elementary and secondary districts can cover the same ground, so shares need not total 100%.

This ZIP code is served by 3 school districts, so the address decides which one, not the ZIP code.

East Mills Community School District89.4% of this ZIP code's land area
Fremont-Mills Community School District8.1% of this ZIP code's land area
Glenwood Community School District2.6% of this ZIP code's land area
Community and walkability

CDC/ATSDR Social Vulnerability Index 2022 and the EPA National Walkability Index, both estimated for this ZIP code from census tract data. Vulnerability figures are national percentile ranks, not measurements.

Overall social vulnerability27more vulnerable than 27% of US census tracts
Socioeconomic status25more vulnerable than 25% of US census tracts
Household characteristics31more vulnerable than 31% of US census tracts
Racial and ethnic minority status6more vulnerable than 6% of US census tracts
Housing type and transport47more vulnerable than 47% of US census tracts
Walkability4.8 out of 20Least walkable
Nearby ZIP codes

The closest ZIP codes by centre point, which is not the same as sharing a border.

51540 Hastings, IA7 km away
51571 Silver City, IA12.3 km away
51534 Glenwood, IA13.7 km away
51653 Tabor, IA14 km away
51533 Emerson, IA14.7 km away
51649 Randolph, IA15.3 km away
51541 Henderson, IA16.8 km away
51554 Mineola, IA17.8 km away
Location, counties and time zone

County shares from Census 2020 ZCTA relationship files. Time zone from the USDOT National Transportation Atlas, which renders the boundaries written into 49 CFR Part 71.

Mills County100% of this ZIP code's land area
Time zoneCentral (UTC-06:00 standard)
Daylight saving timeObserved
Land area81.92 sq mi
Water area0.44 sq mi
Population density23 people per sq mi
Latitude, longitude41.0074, -95.5840

Figures are published for this ZIP code or its Census tabulation area unless a section says otherwise. Estimates whose margin of error made them unreliable are omitted rather than shown. Sources: US Census Bureau, CDC, IRS.

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