Postal Codes

51565 ZIP Code

Advertisement

English Español

ZIP code 51565 covers Portsmouth, Iowa, with a population of about 482 and a median household income of $96,667.

Population
48211 per square mile
Median age
54.716 points above the US average
Median household income
$96,6671.3× the Iowa median
Poverty rate
7.9%4.5 points below the US average
Typical home value
$276,160up 52.6% in five years
Median rent
$83412% below the Iowa median
Degree or higher
11.5%23.5 points below the US average
Homeownership
61.3%3.7 points below the US average
Time zone
Central UTC-06:00observes daylight saving time
Businesses
12

Where 51565 is

Portsmouth, 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

Population482
Median age54.7
Family households83.1%
Born outside the US0%
Speaks a language other than English at home0%
White (non-Hispanic)86.1%
Black (non-Hispanic)0%
Asian (non-Hispanic)0%
Hispanic or Latino9.8%
Veterans12.5%
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$96,667
Income per person$43,339
Poverty rate7.9%
Households on SNAP or cash assistance1.2%

Household income distribution

Under $10k0.4%
$10–15k0.8%
$15–20k9.3%
$20–25k0.4%
$25–30k0.0%
$30–35k0.4%
$35–40k7.3%
$40–45k4.0%
$45–50k0.4%
$50–60k1.6%
$60–75k9.7%
$75–100k16.5%
$100–125k34.7%
$125–150k8.5%
$150–200k1.2%
$200k or more4.8%

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$95,650
Returns declaring $200,000 or more9.1%
Returns, under $25k22.7%
Returns, $25k–$50k18.2%
Returns, $50k–$75k13.6%
Returns, $75k–$100k13.6%
Returns, $100k–$200k22.7%
Returns, $200k or more9.1%
Housing

American Community Survey 2019–2023 five-year estimates

Median home value$117,300
Median gross rent$834
Owner-occupied61.3%
Vacant homes2.7%
Median year built1938

What the homes are

Detached house99.2%
2 to 4 units0.4%
Mobile home0.4%
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$276,160as of 2026-07
Typical home value, 1 yearup 9.1%
Typical home value, 5 yearsup 52.6%
Typical home value since 2000
201720212026$276,160$130,773

$130,773 in 2017 to $276,160 in 2026.

Work, commuting and education

American Community Survey 2019–2023 five-year estimates

Unemployment rate0%
Bachelor's degree or higher11.5%
High school diploma or higher93.6%
Works from home5.9%
Drives to work alone73.5%
Takes public transport0%
Commutes 45 minutes or more23%
Health

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

Obesity38.2% 4.8 pts above the national average of 33.4%
Diagnosed diabetes13.1% 1.1 pts above the national average of 12%
Currently smokes16.1% 2.9 pts above the national average of 13.2%
High blood pressure39% 4.9 pts above the national average of 34.1%
Fair or poor general health19.2% 1.1 pts below the national average of 20.3%
No health insurance (18–64)6.3% 5 pts below the national average of 11.3%
Depression19.7% 2.2 pts below the national average of 21.9%
No leisure-time physical activity26.6% 1.2 pts above the national average of 25.4%
Arthritis31.7% 6.6 pts above the national average of 25.1%
Binge drinking19.4% 3.4 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)10.8% 3.1 pts above the national average of 7.7%
Current asthma9.9% 0.5 pts below the national average of 10.4%
Coronary heart disease8.5% 2.3 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 screening86.6% 0.7 pts above the national average of 85.9%
Cognitive disability13.1% 1.7 pts below the national average of 14.8%
Colorectal screening67.7% 3.4 pts above the national average of 64.3%
COPD8.2% 1.6 pts above the national average of 6.6%
Visited a dentist66.9% 5.6 pts above the national average of 61.3%
Any disability31.1% same as the national average of 30.7%
Lacks emotional support23% 1.8 pts below the national average of 24.8%
Food insecurity10.6% 6.5 pts below the national average of 17.1%
Received food stamps9.1% 5.2 pts below the national average of 14.3%
Hearing disability9.5% 2.8 pts above the national average of 6.7%
High cholesterol39.5% 3.3 pts above the national average of 36.2%
Housing insecurity8.2% 5.6 pts below the national average of 13.8%
Independent living disability7.7% 0.7 pts below the national average of 8.4%
Lacks transport6.1% 3.1 pts below the national average of 9.2%
Loneliness29.8% 4.6 pts below the national average of 34.4%
Mammography use75.3% 0.6 pts below the national average of 75.9%
Poor mental health (14+ days)15.5% 1.3 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)14.1% 0.6 pts above the national average of 13.5%
Self-care disability3.8% same as the national average of 4%
Utility shut-off threat5.8% 3 pts below the national average of 8.8%
Sleeps under 7 hours31.1% 5.3 pts below the national average of 36.4%
Stroke4% 0.6 pts above the national average of 3.4%
All natural teeth lost11.2% 1.8 pts below the national average of 13%
Vision disability4.5% 1.1 pts below the national average of 5.6%
Business and employment

Census ZIP Code Business Patterns 2022

Business establishments12
People employed29
Annual payroll$1,733,000
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 88.6% of US census tracts
FEMA ratingRelatively Moderate to Relatively High across the 3 census tracts this ZIP code covers
Expected annual loss85.5 out of 100
Community resilience74.6 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.

Hail99Very High at its worst in this ZIP code
Drought98.7Relatively High at its worst in this ZIP code
Strong wind97.5Very High at its worst in this ZIP code
Tornado97.3Very High at its worst in this ZIP code
Landslide96.9Relatively Moderate at its worst in this ZIP code
Cold wave88.6Very High at its worst in this ZIP code
Ice storm88.4Relatively Moderate at its worst in this ZIP code
Winter weather86.8Relatively High at its worst in this ZIP code
Wildfire81.1Relatively Moderate at its worst in this ZIP code
River flooding78.8Relatively High at its worst in this ZIP code
Heat wave62.1Relatively Moderate at its worst in this ZIP code
Lightning55.9Relatively Moderate at its worst in this ZIP code
Earthquake13.7Very 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$96,667$73,147$78,538
Income per person$43,339$39,728$43,289
Poverty rate7.9%11%12.4%
Median home value$117,300$195,900$303,400
Median gross rent$834$949$1,348
Homeownership61.3%71.5%65%
Bachelor's degree or higher11.5%30.9%35%
Unemployment rate0%3.6%5.2%
Works from home5.9%10.4%13.5%
Born outside the US0%5.7%13.9%
Median age54.738.638.7
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 stationHARLAN, IA US14.7 km away
Rain in a year34 in
Snow in a year30 in

Average high and low by month

January30.7°F / 10.3°F0.9 in rain, 7.6 in snow
February35.7°F / 13.7°F0.98 in rain, 7.6 in snow
March49.9°F / 25.3°F2.05 in rain, 4 in snow
April63.3°F / 36.4°F3.34 in rain, 1.5 in snow
May74.1°F / 49.3°F4.74 in rain
June83.6°F / 59.9°F5.17 in rain
July85.9°F / 63.6°F3.72 in rain
August84°F / 60.8°F4.32 in rain
September78.5°F / 51.7°F4 in rain
October65.4°F / 39.1°F2.37 in rain, 0.9 in snow
November49.3°F / 25.9°F1.43 in rain, 2.2 in snow
December35.9°F / 15.7°F1.31 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 5 school districts, so the address decides which one, not the ZIP code.

Harlan Community School District65.9% of this ZIP code's land area
Woodbine Community School District14.4% of this ZIP code's land area
AHSTW Community School District11.2% of this ZIP code's land area
Tri-Center Community School District7% of this ZIP code's land area
Logan-Magnolia Community School District1.5% 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 vulnerability27more vulnerable than 27% of US census tracts
Socioeconomic status21more vulnerable than 21% of US census tracts
Household characteristics39more vulnerable than 39% of US census tracts
Racial and ethnic minority status8more vulnerable than 8% of US census tracts
Housing type and transport52more vulnerable than 52% of US census tracts
Walkability4.4 out of 20Least walkable
Nearby ZIP codes

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

51562 Panama, IA9.2 km away
51563 Persia, IA10.4 km away
51578 Westphalia, IA12.5 km away
51570 Shelby, IA13.8 km away
51537 Harlan, IA16.6 km away
51530 Earling, IA17.7 km away
51579 Woodbine, IA18.6 km away
51553 Minden, IA20.6 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.

Shelby County74% of this ZIP code's land area
Harrison County26% of this ZIP code's land area
Time zoneCentral (UTC-06:00 standard)
Daylight saving timeObserved
Land area45.66 sq mi
Water area0.01 sq mi
Population density11 people per sq mi
Latitude, longitude41.6484, -95.5108

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