Postal Codes

52550 ZIP Code

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ZIP code 52550 covers Delta, Iowa, with a population of about 635 and a median household income of $55,984.

Population
63517 per square mile
Median age
36.52.2 points below the US average
Median household income
$55,98423% below the Iowa median
Poverty rate
9%3.4 points below the US average
Typical home value
$106,299
Median rent
$928about the Iowa median
Degree or higher
6.2%28.8 points below the US average
Homeownership
92.4%27.4 points above the US average
Time zone
Central UTC-06:00observes daylight saving time

Where 52550 is

Delta, 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

Population635
Median age36.5
Family households45.6%
Born outside the US2.5%
Speaks a language other than English at home3.9%
White (non-Hispanic)91.8%
Black (non-Hispanic)0.8%
Asian (non-Hispanic)0%
Hispanic or Latino3.3%
Veterans11.3%
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$55,984
Income per person$29,228
Poverty rate9%
Households on SNAP or cash assistance10.6%

Household income distribution

Under $10k8.0%
$10–15k3.0%
$15–20k2.3%
$20–25k12.5%
$25–30k6.1%
$30–35k1.1%
$35–40k1.9%
$40–45k1.1%
$45–50k2.3%
$50–60k24.7%
$60–75k6.8%
$75–100k2.3%
$100–125k9.5%
$125–150k11.4%
$150–200k6.8%
$200k or more0.0%

Income as declared to the IRS

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

Tax returns filed220
Mean adjusted gross income$52,232
Returns declaring $200,000 or more0%
Returns, under $25k27.3%
Returns, $25k–$50k31.8%
Returns, $50k–$75k13.6%
Returns, $75k–$100k13.6%
Returns, $100k–$200k13.6%
Returns, $200k or more0.0%
Housing

American Community Survey 2019–2023 five-year estimates

Median home value$115,100
Median gross rent$928
Rent as a share of household income23.9%
Owner-occupied92.4%
Vacant homes12.3%
Median year built1945

What the homes are

Detached house89.3%
Attached house1%
2 to 4 units5.3%
5 to 19 units1.3%
20 or more units0.3%
Mobile home2.7%
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$106,299as of 2026-07
Typical home value, 1 yearup 4.1%
Typical home value since 2000
202220242026$117,477$102,079

$117,477 in 2022 to $106,299 in 2026.

Work, commuting and education

American Community Survey 2019–2023 five-year estimates

Unemployment rate1.4%
Bachelor's degree or higher6.2%
High school diploma or higher94.7%
Works from home5.5%
Drives to work alone78.6%
Takes public transport0%
Commutes 45 minutes or more22.3%
Health

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

Obesity41.9% 8.5 pts above the national average of 33.4%
Diagnosed diabetes14.7% 2.7 pts above the national average of 12%
Currently smokes18.1% 4.9 pts above the national average of 13.2%
High blood pressure42.9% 8.8 pts above the national average of 34.1%
Fair or poor general health21.5% 1.2 pts above the national average of 20.3%
No health insurance (18–64)6.9% 4.4 pts below the national average of 11.3%
Depression20.1% 1.8 pts below the national average of 21.9%
No leisure-time physical activity29.8% 4.4 pts above the national average of 25.4%
Arthritis33.7% 8.6 pts above the national average of 25.1%
Binge drinking17.8% 1.8 pts above the national average of 16%
Taking blood pressure medication81.8% 7.1 pts above the national average of 74.7%
Cancer (non-skin)11.3% 3.6 pts above the national average of 7.7%
Current asthma10% same as the national average of 10.4%
Coronary heart disease9.3% 3.1 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 screening86.9% 1 pts above the national average of 85.9%
Cognitive disability14% 0.8 pts below the national average of 14.8%
Colorectal screening64.4% same as the national average of 64.3%
COPD9.6% 3 pts above the national average of 6.6%
Visited a dentist65.3% 4 pts above the national average of 61.3%
Any disability33.3% 2.6 pts above the national average of 30.7%
Lacks emotional support23.4% 1.4 pts below the national average of 24.8%
Food insecurity12.5% 4.6 pts below the national average of 17.1%
Received food stamps11.4% 2.9 pts below the national average of 14.3%
Hearing disability10.5% 3.8 pts above the national average of 6.7%
High cholesterol39.4% 3.2 pts above the national average of 36.2%
Housing insecurity9.1% 4.7 pts below the national average of 13.8%
Independent living disability8.8% same as the national average of 8.4%
Lacks transport6.8% 2.4 pts below the national average of 9.2%
Loneliness31.1% 3.3 pts below the national average of 34.4%
Mammography use74.3% 1.6 pts below the national average of 75.9%
Poor mental health (14+ days)15.8% 1 pts below the national average of 16.8%
Mobility disability17.4% 3.4 pts above the national average of 14%
Poor physical health (14+ days)15.4% 1.9 pts above the national average of 13.5%
Self-care disability4.5% 0.5 pts above the national average of 4%
Utility shut-off threat6.8% 2 pts below the national average of 8.8%
Sleeps under 7 hours32.3% 4.1 pts below the national average of 36.4%
Stroke4.7% 1.3 pts above the national average of 3.4%
All natural teeth lost16.3% 3.3 pts above the national average of 13%
Vision disability5.4% same as the national average of 5.6%
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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 65.7% of US census tracts
FEMA ratingRelatively Moderate
Expected annual loss61.5 out of 100
Community resilience73.6 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.

Strong wind97.9Very High at its worst in this ZIP code
Drought95.8Relatively High at its worst in this ZIP code
Hail93.6Relatively High at its worst in this ZIP code
Landslide87.2Relatively Low at its worst in this ZIP code
Heat wave84.6Relatively High at its worst in this ZIP code
Tornado82.8Relatively High at its worst in this ZIP code
Lightning82.1Relatively High at its worst in this ZIP code
Wildfire81.8Relatively Low at its worst in this ZIP code
Winter weather80.6Relatively High at its worst in this ZIP code
Ice storm63.6Relatively Low at its worst in this ZIP code
River flooding63.6Relatively High at its worst in this ZIP code
Cold wave59.7Relatively High at its worst in this ZIP code
Hurricane29.1Very Low at its worst in this ZIP code
Earthquake27.2Very 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$55,984$73,147$78,538
Income per person$29,228$39,728$43,289
Poverty rate9%11%12.4%
Median home value$115,100$195,900$303,400
Median gross rent$928$949$1,348
Homeownership92.4%71.5%65%
Bachelor's degree or higher6.2%30.9%35%
Unemployment rate1.4%3.6%5.2%
Works from home5.5%10.4%13.5%
Born outside the US2.5%5.7%13.9%
Median age36.538.638.7
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 stationSIGOURNEY, IA US9.3 km away
Rain in a year37 in

Average high and low by month

January29.8°F / 11.5°F1.18 in rain
February34.6°F / 15.1°F1.47 in rain
March47.6°F / 26.3°F2.34 in rain
April60.7°F / 37.2°F3.7 in rain
May71°F / 49.1°F4.95 in rain
June80.6°F / 59.1°F5.11 in rain
July84.6°F / 62.7°F3.93 in rain
August82.8°F / 60.4°F4.76 in rain
September76.4°F / 51.7°F3.47 in rain
October63.4°F / 39.8°F2.78 in rain
November48.2°F / 27.7°F2.18 in rain
December35.3°F / 17.7°F1.54 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.

Sigourney Community School District80.7% of this ZIP code's land area
Tri-County Community School District19.3% 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 vulnerability39more vulnerable than 39% of US census tracts
Socioeconomic status35more vulnerable than 35% of US census tracts
Household characteristics71more vulnerable than 71% of US census tracts
Racial and ethnic minority status6more vulnerable than 6% of US census tracts
Housing type and transport43more vulnerable than 43% of US census tracts
Walkability5.7 out of 20Least walkable
Nearby ZIP codes

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

50268 What Cheer, IA8.9 km away
52591 Sigourney, IA11.3 km away
52586 Rose Hill, IA11.5 km away
52562 Hayesville, IA13.3 km away
52561 Fremont, IA14.4 km away
52568 Martinsburg, IA14.6 km away
52563 Hedrick, IA15.1 km away
50255 Thornburg, IA15.3 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.

Keokuk County97.6% of this ZIP code's land area
Mahaska County2.4% of this ZIP code's land area
Time zoneCentral (UTC-06:00 standard)
Daylight saving timeObserved
Land area38.07 sq mi
Water area0.06 sq mi
Population density17 people per sq mi
Latitude, longitude41.3167, -92.3359

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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