Postal Codes

51022 ZIP Code

Advertisement

English Español

ZIP code 51022 covers Granville, Iowa, with a population of about 966 and a median household income of $91,133.

Population
96613 per square mile
Median age
52.313.6 points above the US average
Median household income
$91,1331.2× the Iowa median
Poverty rate
3.7%8.7 points below the US average
Typical home value
$280,678
Median rent
$78817% below the Iowa median
Degree or higher
17.3%17.7 points below the US average
Homeownership
91.7%26.7 points above the US average
Time zone
Central UTC-06:00observes daylight saving time
Businesses
16

Where 51022 is

Granville, 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

Population966
Median age52.3
Family households84.8%
Born outside the US0.2%
Speaks a language other than English at home0.8%
White (non-Hispanic)99.5%
Black (non-Hispanic)0%
Asian (non-Hispanic)0%
Hispanic or Latino0.1%
Veterans14.6%
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$91,133
Income per person$37,788
Poverty rate3.7%
Households on SNAP or cash assistance1.3%

Household income distribution

Under $10k2.4%
$10–15k3.5%
$15–20k3.2%
$20–25k0.8%
$25–30k1.3%
$30–35k0.5%
$35–40k4.0%
$40–45k0.0%
$45–50k3.5%
$50–60k2.1%
$60–75k16.6%
$75–100k37.2%
$100–125k7.0%
$125–150k10.2%
$150–200k4.0%
$200k or more3.7%

Income as declared to the IRS

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

Tax returns filed330
Mean adjusted gross income$95,703
Returns declaring $200,000 or more9.1%
Returns, under $25k21.2%
Returns, $25k–$50k18.2%
Returns, $50k–$75k18.2%
Returns, $75k–$100k12.1%
Returns, $100k–$200k21.2%
Returns, $200k or more9.1%
Housing

American Community Survey 2019–2023 five-year estimates

Median home value$169,400
Median gross rent$788
Rent as a share of household income9%
Owner-occupied91.7%
Vacant homes3.4%
Median year built1938

What the homes are

Detached house99%
Attached house1%
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$280,678as of 2026-07
Typical home value, 1 yearup 8.1%
Typical home value since 2000
202220242026$280,678$227,864

$227,864 in 2022 to $280,678 in 2026.

Work, commuting and education

American Community Survey 2019–2023 five-year estimates

Unemployment rate7.8%
Bachelor's degree or higher17.3%
High school diploma or higher90.6%
Works from home8.9%
Drives to work alone87.3%
Takes public transport0%
Commutes 45 minutes or more0%
Health

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

Obesity35.8% 2.4 pts above the national average of 33.4%
Diagnosed diabetes10.8% 1.2 pts below the national average of 12%
Currently smokes14.1% 0.9 pts above the national average of 13.2%
High blood pressure35% 0.9 pts above the national average of 34.1%
Fair or poor general health16.3% 4 pts below the national average of 20.3%
No health insurance (18–64)7% 4.3 pts below the national average of 11.3%
Depression20.1% 1.8 pts below the national average of 21.9%
No leisure-time physical activity23.8% 1.6 pts below the national average of 25.4%
Arthritis26.4% 1.3 pts above the national average of 25.1%
Binge drinking19.9% 3.9 pts above the national average of 16%
Taking blood pressure medication78.1% 3.4 pts above the national average of 74.7%
Cancer (non-skin)9.3% 1.6 pts above the national average of 7.7%
Current asthma9.7% 0.7 pts below the national average of 10.4%
Coronary heart disease6.4% same as the national average of 6.2%
Routine check-up in past year78.3% 1.6 pts above the national average of 76.7%
Cholesterol screening86.2% same as the national average of 85.9%
Cognitive disability12.6% 2.2 pts below the national average of 14.8%
Colorectal screening65.7% 1.4 pts above the national average of 64.3%
COPD6.6% same as the national average of 6.6%
Visited a dentist69.8% 8.5 pts above the national average of 61.3%
Any disability26.3% 4.4 pts below the national average of 30.7%
Lacks emotional support22.7% 2.1 pts below the national average of 24.8%
Food insecurity10.1% 7 pts below the national average of 17.1%
Received food stamps7.9% 6.4 pts below the national average of 14.3%
Hearing disability7.3% 0.6 pts above the national average of 6.7%
High cholesterol36.8% 0.6 pts above the national average of 36.2%
Housing insecurity8.4% 5.4 pts below the national average of 13.8%
Independent living disability6.7% 1.7 pts below the national average of 8.4%
Lacks transport5.8% 3.4 pts below the national average of 9.2%
Loneliness31.6% 2.8 pts below the national average of 34.4%
Mammography use80.4% 4.5 pts above the national average of 75.9%
Poor mental health (14+ days)15.4% 1.4 pts below the national average of 16.8%
Mobility disability12% 2 pts below the national average of 14%
Poor physical health (14+ days)12.6% 0.9 pts below the national average of 13.5%
Self-care disability3.2% 0.8 pts below the national average of 4%
Utility shut-off threat5.5% 3.3 pts below the national average of 8.8%
Sleeps under 7 hours29.1% 7.3 pts below the national average of 36.4%
Stroke3.2% same as the national average of 3.4%
All natural teeth lost5.5% 7.5 pts below the national average of 13%
Vision disability3.9% 1.7 pts below the national average of 5.6%
Business and employment

Census ZIP Code Business Patterns 2022

Business establishments16
People employed61
Annual payroll$3,950,000
Advertisement
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 77.9% of US census tracts
FEMA ratingRelatively Moderate to Relatively High across the 5 census tracts this ZIP code covers
Expected annual loss86.7 out of 100
Community resilience93 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.

Hail98.9Very High at its worst in this ZIP code
Winter weather97.4Very High at its worst in this ZIP code
Drought96.9Relatively High at its worst in this ZIP code
Tornado93Very High at its worst in this ZIP code
Strong wind88.5Relatively High at its worst in this ZIP code
Ice storm87Relatively High at its worst in this ZIP code
Cold wave86.2Relatively High at its worst in this ZIP code
Wildfire73.3Relatively Low at its worst in this ZIP code
River flooding70Relatively High at its worst in this ZIP code
Landslide67Very Low at its worst in this ZIP code
Lightning62.2Relatively Moderate at its worst in this ZIP code
Heat wave34.3Relatively Low at its worst in this ZIP code
Earthquake14.1Very 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$91,133$73,147$78,538
Income per person$37,788$39,728$43,289
Poverty rate3.7%11%12.4%
Median home value$169,400$195,900$303,400
Median gross rent$788$949$1,348
Homeownership91.7%71.5%65%
Bachelor's degree or higher17.3%30.9%35%
Unemployment rate7.8%3.6%5.2%
Works from home8.9%10.4%13.5%
Born outside the US0.2%5.7%13.9%
Median age52.338.638.7
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 stationSIOUX CTR 2 SE, IA US22.9 km away
Rain in a year30 in
Snow in a year35 in

Average high and low by month

January27.4°F / 9.4°F0.67 in rain, 6.8 in snow
February32.9°F / 13.9°F0.88 in rain, 7.7 in snow
March46.3°F / 25.2°F1.72 in rain, 5.6 in snow
April61.2°F / 36.1°F2.98 in rain, 3.1 in snow
May73.2°F / 48.4°F4.15 in rain, 0.1 in snow
June82.4°F / 58.9°F4.51 in rain
July84.8°F / 61.8°F3.45 in rain
August82.3°F / 59.5°F3.4 in rain
September77.1°F / 51.2°F3.21 in rain
October63.6°F / 38.6°F2.46 in rain, 0.9 in snow
November45.8°F / 25.4°F1.43 in rain, 3.9 in snow
December31.5°F / 14.5°F0.99 in rain, 6.7 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.

South O'Brien Community School District53.7% of this ZIP code's land area
MOC-Floyd Valley Community School District41% of this ZIP code's land area
Remsen-Union Community School District4.3% 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 vulnerability31more vulnerable than 31% of US census tracts
Socioeconomic status21more vulnerable than 21% of US census tracts
Household characteristics44more vulnerable than 44% of US census tracts
Racial and ethnic minority status7more vulnerable than 7% of US census tracts
Housing type and transport57more vulnerable than 57% of US census tracts
Walkability6 out of 20Below average
Nearby ZIP codes

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

51003 Alton, IA9.8 km away
51238 Hospers, IA12.3 km away
51041 Orange City, IA14.1 km away
51046 Paullina, IA15.4 km away
51050 Remsen, IA17.8 km away
51035 Marcus, IA18.3 km away
51231 Archer, IA20.8 km away
51045 Oyens, IA21.1 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.

O'Brien County57.9% of this ZIP code's land area
Sioux County39.5% of this ZIP code's land area
Plymouth County2.5% of this ZIP code's land area
Time zoneCentral (UTC-06:00 standard)
Daylight saving timeObserved
Land area76.18 sq mi
Population density13 people per sq mi
Latitude, longitude42.9693, -95.8972

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.

Advertisement