Postal Codes

51004 ZIP Code

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ZIP code 51004 covers Anthon, Iowa, with a population of about 853 and a median household income of $49,821.

Population
85310 per square mile
Median age
48.59.8 points above the US average
Median household income
$49,82132% below the Iowa median
Poverty rate
13%0.6 points above the US average
Typical home value
$196,963
Median rent
$1,0141.1× the Iowa median
Degree or higher
24%11 points below the US average
Homeownership
73.5%8.5 points above the US average
Time zone
Central UTC-06:00observes daylight saving time
Businesses
20

Where 51004 is

Anthon, 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

Population853
Median age48.5
Family households63.5%
Born outside the US2.1%
Speaks a language other than English at home2.8%
White (non-Hispanic)91.9%
Black (non-Hispanic)0%
Asian (non-Hispanic)0%
Hispanic or Latino4%
Veterans9.8%
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$49,821
Income per person$34,263
Poverty rate13%
Households on SNAP or cash assistance6.4%

Household income distribution

Under $10k9.8%
$10–15k3.6%
$15–20k2.1%
$20–25k2.1%
$25–30k3.1%
$30–35k15.8%
$35–40k6.9%
$40–45k4.1%
$45–50k2.6%
$50–60k5.5%
$60–75k12.6%
$75–100k7.6%
$100–125k5.7%
$125–150k6.0%
$150–200k8.8%
$200k or more3.6%

Income as declared to the IRS

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

Tax returns filed460
Mean adjusted gross income$78,352
Returns declaring $200,000 or more4.3%
Returns, under $25k26.1%
Returns, $25k–$50k23.9%
Returns, $50k–$75k19.6%
Returns, $75k–$100k10.9%
Returns, $100k–$200k15.2%
Returns, $200k or more4.3%
Housing

American Community Survey 2019–2023 five-year estimates

Median home value$100,700
Median gross rent$1,014
Rent as a share of household income23.8%
Owner-occupied73.5%
Vacant homes16%
Median year built1938

What the homes are

Detached house97.2%
2 to 4 units0.6%
Mobile home2.2%
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$196,963as of 2026-07
Typical home value, 1 yearup 8.7%
Typical home value since 2000
202220242026$196,963$172,736

$172,736 in 2022 to $196,963 in 2026.

Work, commuting and education

American Community Survey 2019–2023 five-year estimates

Unemployment rate1%
Bachelor's degree or higher24%
High school diploma or higher97%
Works from home5.5%
Drives to work alone81.3%
Takes public transport1.3%
Commutes 45 minutes or more24%
Health

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

Obesity39.3% 5.9 pts above the national average of 33.4%
Diagnosed diabetes13.3% 1.3 pts above the national average of 12%
Currently smokes16.8% 3.6 pts above the national average of 13.2%
High blood pressure39.4% 5.3 pts above the national average of 34.1%
Fair or poor general health20.2% same as the national average of 20.3%
No health insurance (18–64)7% 4.3 pts below the national average of 11.3%
Depression20.6% 1.3 pts below the national average of 21.9%
No leisure-time physical activity28% 2.6 pts above the national average of 25.4%
Arthritis30.2% 5.1 pts above the national average of 25.1%
Binge drinking19% 3 pts above the national average of 16%
Taking blood pressure medication81.5% 6.8 pts above the national average of 74.7%
Cancer (non-skin)10% 2.3 pts above the national average of 7.7%
Current asthma9.9% 0.5 pts below the national average of 10.4%
Coronary heart disease8.1% 1.9 pts above the national average of 6.2%
Routine check-up in past year79.5% 2.8 pts above the national average of 76.7%
Cholesterol screening85.9% same as the national average of 85.9%
Cognitive disability13.7% 1.1 pts below the national average of 14.8%
Colorectal screening68.6% 4.3 pts above the national average of 64.3%
COPD8.8% 2.2 pts above the national average of 6.6%
Visited a dentist64.1% 2.8 pts above the national average of 61.3%
Any disability30.1% 0.6 pts below the national average of 30.7%
Lacks emotional support23% 1.8 pts below the national average of 24.8%
Food insecurity11.5% 5.6 pts below the national average of 17.1%
Received food stamps10.6% 3.7 pts below the national average of 14.3%
Hearing disability8.9% 2.2 pts above the national average of 6.7%
High cholesterol38.1% 1.9 pts above the national average of 36.2%
Housing insecurity8.8% 5 pts below the national average of 13.8%
Independent living disability8.2% same as the national average of 8.4%
Lacks transport6.7% 2.5 pts below the national average of 9.2%
Loneliness30.6% 3.8 pts below the national average of 34.4%
Mammography use78.4% 2.5 pts above the national average of 75.9%
Poor mental health (14+ days)16.6% same as the national average of 16.8%
Mobility disability15.1% 1.1 pts above the national average of 14%
Poor physical health (14+ days)15% 1.5 pts above the national average of 13.5%
Self-care disability4.1% same as the national average of 4%
Utility shut-off threat6.4% 2.4 pts below the national average of 8.8%
Sleeps under 7 hours30.8% 5.6 pts below the national average of 36.4%
Stroke4% 0.6 pts above the national average of 3.4%
All natural teeth lost13.3% same as the national average of 13%
Vision disability4.9% 0.7 pts below the national average of 5.6%
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Business and employment

Census ZIP Code Business Patterns 2022

Business establishments20
People employed96
Annual payroll$2,107,000
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 90.6% of US census tracts
FEMA ratingRelatively Moderate to Relatively High across the 3 census tracts this ZIP code covers
Expected annual loss93.2 out of 100
Community resilience81.4 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.

Hail98.8Very High at its worst in this ZIP code
Drought98.6Relatively High at its worst in this ZIP code
Tornado97.9Very High at its worst in this ZIP code
Landslide96.8Relatively Moderate at its worst in this ZIP code
Wildfire91.9Relatively Moderate at its worst in this ZIP code
Winter weather90.6Relatively High at its worst in this ZIP code
Strong wind90.5Relatively High at its worst in this ZIP code
Cold wave88.5Relatively High at its worst in this ZIP code
Ice storm87.5Relatively Moderate at its worst in this ZIP code
River flooding86.6Very High at its worst in this ZIP code
Heat wave67.9Relatively Moderate at its worst in this ZIP code
Lightning47.1Relatively Moderate at its worst in this ZIP code
Earthquake14.2Very 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$49,821$73,147$78,538
Income per person$34,263$39,728$43,289
Poverty rate13%11%12.4%
Median home value$100,700$195,900$303,400
Median gross rent$1,014$949$1,348
Homeownership73.5%71.5%65%
Bachelor's degree or higher24%30.9%35%
Unemployment rate1%3.6%5.2%
Works from home5.5%10.4%13.5%
Born outside the US2.1%5.7%13.9%
Median age48.538.638.7
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 stationBATTLE CREEK 3NE, IA US26.3 km away
Rain in a year32 in

Average high and low by month

January27.4°F / 7.8°F0.74 in rain
February32°F / 11.7°F0.87 in rain
March45.2°F / 23.4°F1.78 in rain
April59.5°F / 34.7°F3.42 in rain
May70.9°F / 48.1°F4.4 in rain
June80.7°F / 58.7°F4.8 in rain
July83.9°F / 62.3°F3.71 in rain
August81.9°F / 59°F4.23 in rain
September75.9°F / 49.5°F3.16 in rain
October62.6°F / 35.8°F2.37 in rain
November45.9°F / 23.6°F1.48 in rain
December32.5°F / 13.2°F1.12 in rain
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 2 school districts, so the address decides which one, not the ZIP code.

Maple Valley-Anthon Oto Community School District79.8% of this ZIP code's land area
Woodbury Central Community School District20.2% 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 vulnerability37more vulnerable than 37% of US census tracts
Socioeconomic status22more vulnerable than 22% of US census tracts
Household characteristics78more vulnerable than 78% of US census tracts
Racial and ethnic minority status16more vulnerable than 16% of US census tracts
Housing type and transport43more vulnerable than 43% of US census tracts
Walkability5.2 out of 20Least walkable
Nearby ZIP codes

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

51016 Correctionville, IA13.5 km away
51044 Oto, IA13.9 km away
51048 Pierson, IA16.3 km away
51015 Climbing Hill, IA16.5 km away
51056 Smithland, IA16.8 km away
51039 Moville, IA17.5 km away
51026 Hornick, IA18.6 km away
51019 Danbury, IA19.1 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.

Woodbury County100% of this ZIP code's land area
Time zoneCentral (UTC-06:00 standard)
Daylight saving timeObserved
Land area84.2 sq mi
Water area0.32 sq mi
Population density10 people per sq mi
Latitude, longitude42.3870, -95.8948

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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