Postal Codes

50603 ZIP Code

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ZIP code 50603 covers Alta Vista, Iowa, with a population of about 410 and a median household income of $62,667.

Population
4109 per square mile
Median age
45.46.7 points above the US average
Median household income
$62,66714% below the Iowa median
Poverty rate
3.7%8.7 points below the US average
Typical home value
$205,959
Median rent
$82513% below the Iowa median
Degree or higher
8.2%26.8 points below the US average
Homeownership
89.8%24.8 points above the US average
Time zone
Central UTC-06:00observes daylight saving time
Businesses
12

Where 50603 is

Alta Vista, 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

Population410
Median age45.4
Family households69.4%
Born outside the US0.5%
Speaks a language other than English at home0.5%
White (non-Hispanic)99.5%
Black (non-Hispanic)0%
Asian (non-Hispanic)0%
Hispanic or Latino0.5%
Veterans1.5%
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$62,667
Income per person$35,619
Poverty rate3.7%
Households on SNAP or cash assistance3.2%

Household income distribution

Under $10k1.6%
$10–15k4.8%
$15–20k3.8%
$20–25k1.6%
$25–30k0.5%
$30–35k0.0%
$35–40k9.1%
$40–45k6.5%
$45–50k3.2%
$50–60k7.5%
$60–75k29.0%
$75–100k11.3%
$100–125k1.6%
$125–150k11.8%
$150–200k6.5%
$200k or more1.1%

Income as declared to the IRS

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

Tax returns filed280
Mean adjusted gross income$65,325
Returns declaring $200,000 or more0%
Returns, under $25k25.0%
Returns, $25k–$50k25.0%
Returns, $50k–$75k21.4%
Returns, $75k–$100k10.7%
Returns, $100k–$200k17.9%
Returns, $200k or more0.0%
Housing

American Community Survey 2019–2023 five-year estimates

Median home value$97,000
Median gross rent$825
Rent as a share of household income16.5%
Owner-occupied89.8%
Vacant homes2.6%
Median year built1938

What the homes are

Detached house91.6%
Attached house0.5%
2 to 4 units7.9%
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$205,959as of 2026-07
Typical home value, 1 yearup 8.5%
Typical home value since 2000
202220242026$205,959$169,244

$169,244 in 2022 to $205,959 in 2026.

Work, commuting and education

American Community Survey 2019–2023 five-year estimates

Unemployment rate6.5%
Bachelor's degree or higher8.2%
High school diploma or higher85.6%
Works from home9.7%
Drives to work alone77.6%
Takes public transport0%
Commutes 45 minutes or more27.4%
Health

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

Obesity39.7% 6.3 pts above the national average of 33.4%
Diagnosed diabetes12.5% 0.5 pts above the national average of 12%
Currently smokes16.5% 3.3 pts above the national average of 13.2%
High blood pressure38.1% 4 pts above the national average of 34.1%
Fair or poor general health19.7% 0.6 pts below the national average of 20.3%
No health insurance (18–64)7.1% 4.2 pts below the national average of 11.3%
Depression19.6% 2.3 pts below the national average of 21.9%
No leisure-time physical activity27.6% 2.2 pts above the national average of 25.4%
Arthritis29.9% 4.8 pts above the national average of 25.1%
Binge drinking20.7% 4.7 pts above the national average of 16%
Taking blood pressure medication79.3% 4.6 pts above the national average of 74.7%
Cancer (non-skin)9.9% 2.2 pts above the national average of 7.7%
Current asthma10% same as the national average of 10.4%
Coronary heart disease7.9% 1.7 pts above the national average of 6.2%
Routine check-up in past year77% same as the national average of 76.7%
Cholesterol screening84.6% 1.3 pts below the national average of 85.9%
Cognitive disability14.2% 0.6 pts below the national average of 14.8%
Colorectal screening67.1% 2.8 pts above the national average of 64.3%
COPD8.1% 1.5 pts above the national average of 6.6%
Visited a dentist66.3% 5 pts above the national average of 61.3%
Any disability30.5% same as the national average of 30.7%
Lacks emotional support24.4% same as the national average of 24.8%
Food insecurity11.8% 5.3 pts below the national average of 17.1%
Received food stamps10% 4.3 pts below the national average of 14.3%
Hearing disability9.1% 2.4 pts above the national average of 6.7%
High cholesterol36.2% same as the national average of 36.2%
Housing insecurity8.9% 4.9 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%
Loneliness31.4% 3 pts below the national average of 34.4%
Mammography use74.5% 1.4 pts below the national average of 75.9%
Poor mental health (14+ days)16.4% same as the national average of 16.8%
Mobility disability14.7% 0.7 pts above the national average of 14%
Poor physical health (14+ days)14.1% 0.6 pts above the national average of 13.5%
Self-care disability3.9% same as the national average of 4%
Utility shut-off threat6.3% 2.5 pts below the national average of 8.8%
Sleeps under 7 hours32.4% 4 pts below the national average of 36.4%
Stroke3.9% 0.5 pts above the national average of 3.4%
All natural teeth lost13.2% same as the national average of 13%
Vision disability4.7% 0.9 pts below the national average of 5.6%
Business and employment

Census ZIP Code Business Patterns 2022

Business establishments12
People employed65
Annual payroll$2,270,000
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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 91.9% of US census tracts
FEMA ratingRelatively High
Expected annual loss93.6 out of 100
Community resilience74.8 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.

Drought99.1Relatively High at its worst in this ZIP code
Hail98.4Very High at its worst in this ZIP code
Strong wind98Very High at its worst in this ZIP code
Tornado95.6Very High at its worst in this ZIP code
River flooding92.6Very High at its worst in this ZIP code
Winter weather89.9Relatively High at its worst in this ZIP code
Cold wave88.1Relatively High at its worst in this ZIP code
Landslide77.6Very Low at its worst in this ZIP code
Wildfire76Relatively Low at its worst in this ZIP code
Ice storm61.9Relatively Low at its worst in this ZIP code
Lightning59.6Relatively High at its worst in this ZIP code
Hurricane36.6Very Low at its worst in this ZIP code
Heat wave28.6Relatively Low at its worst in this ZIP code
Earthquake10.5Very 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$62,667$73,147$78,538
Income per person$35,619$39,728$43,289
Poverty rate3.7%11%12.4%
Median home value$97,000$195,900$303,400
Median gross rent$825$949$1,348
Homeownership89.8%71.5%65%
Bachelor's degree or higher8.2%30.9%35%
Unemployment rate6.5%3.6%5.2%
Works from home9.7%10.4%13.5%
Born outside the US0.5%5.7%13.9%
Median age45.438.638.7
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 stationNEW HAMPTON, IA US14.6 km away
Rain in a year41 in
Snow in a year38 in

Average high and low by month

January23.3°F / 5.5°F1.31 in rain, 9.7 in snow
February27.8°F / 9.8°F1.38 in rain, 10.3 in snow
March41°F / 22.4°F2.35 in rain, 6.2 in snow
April56.3°F / 34.1°F4.18 in rain, 1.4 in snow
May68°F / 46.5°F4.95 in rain
June78°F / 56.9°F6.59 in rain
July80.8°F / 60.2°F4.99 in rain
August78.8°F / 58°F4.59 in rain
September72.6°F / 49.3°F3.83 in rain
October59.1°F / 36.9°F2.66 in rain, 0.1 in snow
November42.8°F / 23.8°F2.07 in rain, 2.9 in snow
December29.1°F / 12.4°F1.67 in rain, 7.9 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.

New Hampton Community School District86.6% of this ZIP code's land area
Howard-Winneshiek Community School District7.7% of this ZIP code's land area
Riceville Community School District3.1% of this ZIP code's land area
Charles City 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 vulnerability39more vulnerable than 39% of US census tracts
Socioeconomic status39more vulnerable than 39% of US census tracts
Household characteristics61more vulnerable than 61% of US census tracts
Racial and ethnic minority status4more vulnerable than 4% of US census tracts
Housing type and transport46more vulnerable than 46% of US census tracts
Walkability3.4 out of 20Least walkable
Nearby ZIP codes

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

50661 North Washington, IA3.5 km away
50645 Ionia, IA13 km away
50620 Colwell, IA13.6 km away
50659 New Hampton, IA13.6 km away
50628 Elma, IA14.6 km away
50616 Charles City, IA22.3 km away
50658 Nashua, IA23.4 km away
52154 Lawler, IA23.5 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.

Chickasaw County83.3% of this ZIP code's land area
Howard County16.7% of this ZIP code's land area
Time zoneCentral (UTC-06:00 standard)
Daylight saving timeObserved
Land area45.11 sq mi
Population density9 people per sq mi
Latitude, longitude43.1482, -92.4237

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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