Portsmouth

County:: Shelby County
County Seat:: No
Area (mi²):: 0.307
State:: Iowa

Portsmouth is a city located in Shelby County, Iowa. Portsmouth has a 2025 population of 191. Portsmouth is currently growing at a rate of 0.53% annually and its population has increased by 2.69% since the most recent census, which recorded a population of 186 in 2020.

The average household income in Portsmouth is $87,070 with a poverty rate of 3%. The median age in Portsmouth is 43.5 years: 45.5 years for males, and 37.3 years for females.

Demographics

The racial composition of Portsmouth includes 87% White, and smaller percentages for Black or African American, Native American, Asian, Native Hawaiian or Pacific Islander, other race and multiracial populations.

Population by Race

White

Two or more races

Black or African American

Native American

Asian

Native Hawaiian or Pacific Islander

Other race

Race	Population	Percentage (of total)
White	174	87%
Two or more races	26	13%
Black or African American	0	0%
Native American	0	0%
Asian	0	0%
Native Hawaiian or Pacific Islander	0	0%
Other race	0	0%

Portsmouth Marital Status

Married

Widowed

Divorced

Separated

Never Married

Economics and Income Statistics

Portsmouth's average per capita income is $60,208. Household income levels show a median of $79,643. The poverty rate stands at 3%.

Families: A family includes the owner or renter of the home along with everyone related to them - whether through birth, marriage, or adoption. This includes relatives like spouses, children, parents, siblings, grandparents, and any other family members.

Households: A household includes all the people who occupy a housing unit (such as a house or apartment) as their usual place of residence.

Non Families: A nonfamily household is either someone living alone or when the owner/renter lives with people they aren't related to, like roommates.

Name	Median	Mean
Married Families	$120,833	-
Families	$97,083	$102,794
Households	$79,643	$87,070
Non Families	$70,357	$57,474

$60,208

Average Income

$79,643

Median Household Income

3%

Poverty Rate