51565 ZIP Code — Portsmouth, IA

Shelby County, Iowa

ZIP code 51565 is located in Portsmouth, Iowa, within Shelby County. It covers approximately 45.66 square miles and serves a population of 530 residents. This is a standard ZIP code in the Central (CT) timezone, served by area code 712.

About ZIP code 51565

The housing stock consists of predominantly single-family detached homes. Most homes were built in the pre-1940, giving the area an established character. Median home value is $121,800. Owner-occupancy sits near the national average at 62%.

Median household income is $95,308. 55% of households receive Social Security income, suggesting a notable retiree or disability population.

The dominant occupation class is sales and office, with education and healthcare as the leading industry. The average commute of 25 minutes is near the national average.

College attainment at 12% is below the national average, consistent with a trades and production-oriented local economy.

Notable community characteristics include a notable veteran presence at 12% of civilians, above the national average of 7%; and disability rates above the national average at 25%.

Overall, ZIP code 51565 reflects a community defined by a trades-oriented workforce, a strong veteran community, and a significant Social Security-dependent population.

530

population

45.66

sq mi land

Standard

ZIP type

Central (CT)

timezone

51565 ZIP code map

Cities in ZIP code 51565

Below are the cities the US Postal Service accepts for ZIP code 51565. Using any city not on this list may result in mail delivery delays.

City	Status
Portsmouth	Preferred

Nearby ZIP codes

51563 Persia (6.2 mi) 51562 Panama (6.3 mi) 51570 Shelby (8.8 mi) 51530 Earling (11.2 mi) 51546 Logan (11.5 mi) 51579 Woodbine (11.7 mi) 51537 Harlan (14 mi) 51521 Avoca (14.2 mi) 51559 Neola (14.8 mi) 51529 Dunlap (15.8 mi) 51527 Defiance (16 mi) 51553 Minden (16.6 mi)

Demographics updated 05/2026

Population
Total population	530
Population density	12 / sq mi
State FIPS	19
County FIPS	165

Geography
Land area	45.66 sq mi
Water area	0.01 sq mi
Latitude	41.6459
Longitude	-95.5384
Timezone	Central (CT)
Area code	712

Total population by age

Gender

Race & ethnicity

Economics updated 05/2026

Household income

Income range	This ZIP	County avg	State avg
Under $50k	28.5%	43.2%	40.1%
$50k – $100k	48.1%	31.4%	33.4%
$100k – $200k	13.5%	20.5%	21.5%
Over $200k	10.0%	4.8%	5.0%

Demographics & statistics

530

Population

People per sq mi

48.8

Median age

$95,308

Median household income

$36,948

Per capita income

$121,800

Median home value

$764

Median monthly rent

62.0%

Home ownership

8.1%

Poverty rate

0.0%

Unemployment

158

Housing units

12.0%

Bachelor's or higher

Age distribution

Male Female

Under 5

5–9

10–14

15–19

20–24

25–34

35–44

45–54

55–59

60–64

65–74

75–84

85+

← Male

Female →

Age summary

Group	Count	%
Under 18	120	22.6%
18 and over	410	77.4%
65 and over	157	29.6%
Median age	48.8 years

Race & ethnicity

White 94.7%

Two or more races 2.9%

Hispanic or Latino 2.4%

Group	Count	%
White	514	94.7%
Two or more races	16	2.9%
Hispanic or Latino	13	2.4%

Household income

Income range	This ZIP	County avg	State avg
Under $50k	28.5%	43.2%	40.1%
$50k – $100k	48.1%	31.4%	33.4%
$100k – $200k	13.5%	20.5%	21.5%
Over $200k	10.0%	4.8%	5.0%

Under $10k 1.2%

$10k–$15k 2.5%

$15k–$25k 9.1%

$25k–$35k 0.4%

$35k–$50k 12.8%

$50k–$75k 5.0%

$75k–$100k 45.5%

$100k–$150k 16.9%

$150k–$200k 2.5%

$200k+ 4.1%

Range	% of households
Under $10k	1.2%
$10k–$15k	2.5%
$15k–$25k	9.1%
$25k–$35k	0.4%
$35k–$50k	12.8%
$50k–$75k	5.0%
$75k–$100k	45.5%
$100k–$150k	16.9%
$150k–$200k	2.5%
$200k+	4.1%
Median income	$95,308

Housing

Home values

Under $50k 3.3%

$50k–$100k 10.7%

$100k–$150k 44.7%

$150k–$200k 31.3%

$200k–$300k 8.0%

$300k–$500k 1.3%

$500k–$1M 0.7%

Housing overview

Metric	Value
Median home value	$121,800
Median rent / month	$764
Owner occupied	62.0%
Renter occupied	38.0%
Vacant	3.2%
Single-family detached	98.4%
Large apartment buildings	0.0%
Mobile homes	0.4%
Median rooms	7.0
Avg household size (owned)	2.59

Year built

Era	%
2020 or later	0.0%
2010–2019	0.0%
2000–2009	5.6%
1990–1999	1.6%
1980–1989	1.2%
1970–1979	3.2%
1960–1969	9.2%
1950–1959	12.4%
1940–1949	0.8%
1939 or earlier	66.0%

Bedrooms

Size	% of units
No bedroom (studio)	0.8%
1 bedroom	4.8%
2 bedrooms	8.8%
3 bedrooms	58.8%
4 bedrooms	21.2%
5+ bedrooms	5.6%

Vehicles per household

Vehicles	% of households
No vehicle	1.7%
1 vehicle	12.0%
2 vehicles	60.3%
3 or more	26.0%

Heating fuel

Fuel type	%
Utility gas	24.4%
Electricity	22.7%
Propane / LP gas	52.9%

Households & families

Household type	Count	%
Married-couple family	187	77.3%
Cohabiting couple	14	5.8%
Male householder, no spouse	23	9.5%
Female householder, no spouse	18	7.4%
Households with children under 18	54	22.3%
Households with seniors (65+)	119	49.2%
Average household size	2.19

Marital status

Status	Male	Female
Never married	11.5%	10.5%
Married	79.7%	82.3%
Separated	0.0%	0.0%
Widowed	2.6%	1.8%
Divorced	6.3%	5.5%

Education

Less than 9th grade 1.0%

Some HS, no diploma 4.7%

HS graduate 48.2%

Some college, no degree 18.2%

Associate's degree 16.0%

Bachelor's degree 11.5%

Graduate / professional 0.5%

Metric	%
HS diploma or higher	94.3%
Bachelor's or higher	12.0%

School enrollment (ages 3–17)

Type	Count	%
Nursery / preschool	6	8.3%
Kindergarten	19	26.4%
Elementary school	41	56.9%
High school	2	2.8%
College / grad school	4	5.6%

Employment

Industry of employment

Transportation & utilities 23.7%

Education & healthcare 17.7%

Other services 14.0%

Construction 10.7%

Agriculture & mining 10.3%

Finance & real estate 8.3%

Retail trade 5.7%

Arts, food & hospitality 3.0%

Manufacturing 2.7%

Public administration 2.0%

Wholesale trade 1.0%

Professional & management 0.7%

Information 0.3%

Occupation

Category	%
Management, business & arts	34.3%
Service	6.0%
Sales & office	40.7%
Natural resources & construction	11.7%
Production & transportation	7.3%

Employment type

Type	%
Private sector	60.7%
Government	34.0%
Self-employed	5.3%
Unpaid family workers	0.0%

Commute

Method	%
Drive alone	73.7%
Carpool	11.3%
Public transit	0.0%
Walk	4.7%
Work from home	9.0%
Other means	1.3%
Avg commute (minutes)	24.5

Poverty

All people 8.1%

Under 18 years 0.0%

18 and over 10.5%

Married-couple families 9.6%

Female-led households 0.0%

Income support

Source	% of households
Social Security	55.0%
Retirement income	7.4%
Supplemental Security	0.4%
Cash public assistance	1.2%
Food stamps / SNAP	1.2%

Health indicators

Condition	%
Obesity	40.2%
High blood pressure	39.2%
High cholesterol	37.3%
Diabetes	11.8%
Heart disease	8.3%
Stroke	3.7%
Asthma	9.0%
Arthritis	29.2%
Kidney disease	3.4%
Pulmonary disease	8.0%
Cancer	8.5%

Behavior / access	%
Smoking	17.6%
Binge drinking	20.0%
No physical activity	25.9%
Less than 7 hrs sleep	30.3%
Depression	16.6%
Fair or poor health	13.8%
Poor mental health	12.2%
Poor physical health	10.6%
No health insurance	8.9%
Visited doctor (checkup)	76.4%
Visited dentist	69.7%
Cholesterol screening	90.9%
Teeth loss	13.4%

Veterans & disability

Veterans	Count	%
Civilian veterans	51	12.4%

Disability	%
Any disability	24.5%
Under 18	1.7%
18–64 years	19.8%
65 and over	49.7%

Health insurance coverage

Type	%
Private insurance	64.3%
Public insurance	48.9%
No insurance	1.9%
Uninsured under 19	1.7%

Language & origin

Language spoken at home (age 5+)

Language	Count	%
English only	472	89.1%
Spanish	0	0.0%
Other Indo-European	0	0.0%
Asian & Pacific Islander	0	0.0%
Other languages	0	0.0%

Place of birth & citizenship

Origin	Count	%
Native born (US)	530	100.0%
Born in same state	530	100.0%
Born in different state	336	63.4%
Foreign born	0	0.0%
Naturalized citizen	0	0.0%
Not a US citizen	0	0.0%

Ancestry

Ancestry	Count	%
Italian	112	21.1%
Dutch	70	13.2%
French	21	4%

Ancestry	Count	%
Irish	11	2.1%
Arab	11	2.1%
Polish	8	1.5%

Technology access

Metric	% of households
Computer access	45.7%
Internet access	94.2%

Source: U.S. Census Bureau, American Community Survey 2025 estimates.

Frequently asked questions about ZIP code 51565

What city is ZIP code 51565 in?

ZIP code 51565 is primarily assigned to Portsmouth, Iowa.

What county is ZIP code 51565 in?

ZIP code 51565 falls within Shelby County, Iowa.

Does ZIP code 51565 have an older population?

30% of residents in ZIP code 51565 are 65 or older, above the national average of ~17%.

Does ZIP code 51565 have a large retiree population?

55% of households in ZIP code 51565 receive Social Security income, suggesting a significant retiree or disability population.

How educated is the population of ZIP code 51565?

12% of residents hold a bachelor's degree or higher — below the national average of ~33%, consistent with a trades-oriented local economy.

Does ZIP code 51565 have a large veteran population?

12% of civilians in ZIP code 51565 are veterans, above the national average of ~7%.

What timezone is ZIP code 51565 in?

ZIP code 51565 observes the CST timezone.