Postal Codes

51023 ZIP Code

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ZIP code 51023 covers Hawarden, Iowa, with a population of about 3,437 and a median household income of $74,205.

Population
3,43729 per square mile
Median age
35.33.4 points below the US average
Median household income
$74,205about the Iowa median
Poverty rate
9.5%2.9 points below the US average
Typical home value
$197,419up 37.8% in five years
Median rent
$8817% below the Iowa median
Degree or higher
20.4%14.6 points below the US average
Homeownership
70.6%5.6 points above the US average
Time zone
Central UTC-06:00observes daylight saving time
Businesses
89

Where 51023 is

Hawarden, 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

Population3,437
Median age35.3
Family households77.6%
Born outside the US19%
Speaks a language other than English at home20.8%
White (non-Hispanic)70.6%
Black (non-Hispanic)0.1%
Asian (non-Hispanic)0%
Hispanic or Latino29.1%
Veterans4.5%
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$74,205
Income per person$35,118
Poverty rate9.5%
Households on SNAP or cash assistance5.5%

Household income distribution

Under $10k4.8%
$10–15k2.8%
$15–20k5.5%
$20–25k2.8%
$25–30k4.9%
$30–35k0.8%
$35–40k3.0%
$40–45k3.0%
$45–50k6.3%
$50–60k2.1%
$60–75k14.6%
$75–100k9.0%
$100–125k13.3%
$125–150k8.4%
$150–200k8.8%
$200k or more10.0%

Income as declared to the IRS

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

Tax returns filed1,350
Mean adjusted gross income$65,004
Returns declaring $200,000 or more3%
Returns, under $25k23.7%
Returns, $25k–$50k26.7%
Returns, $50k–$75k19.3%
Returns, $75k–$100k12.6%
Returns, $100k–$200k14.8%
Returns, $200k or more3.0%
Housing

American Community Survey 2019–2023 five-year estimates

Median home value$148,500
Median gross rent$881
Rent as a share of household income19.7%
Owner-occupied70.6%
Vacant homes8.4%
Median year built1970

What the homes are

Detached house80.6%
Attached house1.3%
2 to 4 units7.3%
5 to 19 units3.8%
20 or more units1.5%
Mobile home4.8%
Boat, RV or van0.7%
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$197,419as of 2026-07
Typical home value, 1 yearup 5.4%
Typical home value, 5 yearsup 37.8%
Typical home value, 10 yearsup 111.4%
Typical home value since 2000
200920172026$197,419$71,230

$71,230 in 2009 to $197,419 in 2026.

Work, commuting and education

American Community Survey 2019–2023 five-year estimates

Unemployment rate4%
Bachelor's degree or higher20.4%
High school diploma or higher79.3%
Works from home11.7%
Drives to work alone77.1%
Takes public transport0%
Commutes 45 minutes or more10%
Health

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

Obesity35.7% 2.3 pts above the national average of 33.4%
Diagnosed diabetes12.1% same as the national average of 12%
Currently smokes16.1% 2.9 pts above the national average of 13.2%
High blood pressure36.9% 2.8 pts above the national average of 34.1%
Fair or poor general health20.3% same as the national average of 20.3%
No health insurance (18–64)11.6% same as the national average of 11.3%
Depression19.9% 2 pts below the national average of 21.9%
No leisure-time physical activity28.8% 3.4 pts above the national average of 25.4%
Arthritis27% 1.9 pts above the national average of 25.1%
Binge drinking18.4% 2.4 pts above the national average of 16%
Taking blood pressure medication78.2% 3.5 pts above the national average of 74.7%
Cancer (non-skin)9.3% 1.6 pts above the national average of 7.7%
Current asthma9.9% 0.5 pts below the national average of 10.4%
Coronary heart disease7.4% 1.2 pts above the national average of 6.2%
Routine check-up in past year77.5% 0.8 pts above the national average of 76.7%
Cholesterol screening84.3% 1.6 pts below the national average of 85.9%
Cognitive disability14.7% same as the national average of 14.8%
Colorectal screening62.7% 1.6 pts below the national average of 64.3%
COPD7.9% 1.3 pts above the national average of 6.6%
Visited a dentist65.9% 4.6 pts above the national average of 61.3%
Any disability30.6% same as the national average of 30.7%
Lacks emotional support25.5% 0.7 pts above the national average of 24.8%
Food insecurity14.7% 2.4 pts below the national average of 17.1%
Received food stamps11.2% 3.1 pts below the national average of 14.3%
Hearing disability8.5% 1.8 pts above the national average of 6.7%
High cholesterol37.9% 1.7 pts above the national average of 36.2%
Housing insecurity11.2% 2.6 pts below the national average of 13.8%
Independent living disability8.3% same as the national average of 8.4%
Lacks transport7.6% 1.6 pts below the national average of 9.2%
Loneliness34.1% same as the national average of 34.4%
Mammography use79% 3.1 pts above the national average of 75.9%
Poor mental health (14+ days)15.9% 0.9 pts below the national average of 16.8%
Mobility disability14.7% 0.7 pts above the national average of 14%
Poor physical health (14+ days)14.2% 0.7 pts above the national average of 13.5%
Self-care disability3.9% same as the national average of 4%
Utility shut-off threat6.9% 1.9 pts below the national average of 8.8%
Sleeps under 7 hours27.5% 8.9 pts below the national average of 36.4%
Stroke3.7% same as the national average of 3.4%
All natural teeth lost13.3% same as the national average of 13%
Vision disability5.2% same as the national average of 5.6%
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Business and employment

Census ZIP Code Business Patterns 2022

Business establishments89
People employed881
Annual payroll$33,246,000
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 93.2% of US census tracts
FEMA ratingRelatively High
Expected annual loss95.2 out of 100
Community resilience75.8 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.

Hail99.6Very High at its worst in this ZIP code
Winter weather98.9Very High at its worst in this ZIP code
Tornado98.4Very High at its worst in this ZIP code
Drought97.7Relatively High at its worst in this ZIP code
Ice storm93.4Relatively High at its worst in this ZIP code
Strong wind91.2Relatively High at its worst in this ZIP code
River flooding90.8Relatively High at its worst in this ZIP code
Cold wave88.8Relatively High at its worst in this ZIP code
Landslide87.7Relatively Low at its worst in this ZIP code
Wildfire85.9Relatively Low at its worst in this ZIP code
Lightning72.5Relatively High at its worst in this ZIP code
Heat wave56Relatively Moderate at its worst in this ZIP code
Earthquake18.6Very 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$74,205$73,147$78,538
Income per person$35,118$39,728$43,289
Poverty rate9.5%11%12.4%
Median home value$148,500$195,900$303,400
Median gross rent$881$949$1,348
Homeownership70.6%71.5%65%
Bachelor's degree or higher20.4%30.9%35%
Unemployment rate4%3.6%5.2%
Works from home11.7%10.4%13.5%
Born outside the US19%5.7%13.9%
Median age35.338.638.7
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 stationHAWARDEN, IA US1 km away
Rain in a year30 in
Snow in a year31 in

Average high and low by month

January26.9°F / 7.2°F0.7 in rain, 6.8 in snow
February32°F / 11.3°F0.79 in rain, 6.4 in snow
March44.9°F / 22.8°F1.69 in rain, 4.4 in snow
April59.2°F / 34°F3.15 in rain, 2.3 in snow
May70.7°F / 46.7°F4.04 in rain, 0.2 in snow
June80.8°F / 58°F4.36 in rain
July84.9°F / 62.1°F3.19 in rain
August82.7°F / 59.3°F3.57 in rain
September75.9°F / 49.7°F3.25 in rain
October61.8°F / 36.4°F2.54 in rain, 0.1 in snow
November45.2°F / 23.4°F1.31 in rain, 3.1 in snow
December31.4°F / 12.7°F1.27 in rain, 7.3 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 4 school districts, so the address decides which one, not the ZIP code.

West Sioux Community School District66.8% of this ZIP code's land area
Alcester-Hudson School District 61-129.8% of this ZIP code's land area
Rock Valley Community School District2.4% of this ZIP code's land area
Sioux Center Community School District1% 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 vulnerability68more vulnerable than 68% of US census tracts
Socioeconomic status46more vulnerable than 46% of US census tracts
Household characteristics82more vulnerable than 82% of US census tracts
Racial and ethnic minority status33more vulnerable than 33% of US census tracts
Housing type and transport83more vulnerable than 83% of US census tracts
Walkability5.9 out of 20Below average
Nearby ZIP codes

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

51011 Chatsworth, IA10 km away
51027 Ireton, IA12.8 km away
57001 Alcester, SD13 km away
57034 Hudson, SD14.9 km away
51001 Akron, IA18.9 km away
57027 Fairview, SD22 km away
51036 Maurice, IA25.4 km away
51250 Sioux Center, IA25.4 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.

Sioux County70.2% of this ZIP code's land area
Union County29.8% of this ZIP code's land area
Time zoneCentral (UTC-06:00 standard)
Daylight saving timeObserved
Land area119.87 sq mi
Water area0.83 sq mi
Population density29 people per sq mi
Latitude, longitude43.0013, -96.4730

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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