Portsmouth Flag

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 2026 population of 187. Portsmouth is currently declining at a rate of 0% annually and its population has increased by 0.54% since the most recent census, which recorded a population of 186 in 2020.

The median household income in Portsmouth is $80,781 with a poverty rate of 4.9%. The median age in Portsmouth is 47.3 years: 49 years for males, and 45 years for females. For every 100 females there are 88.9 males.

187
Total Population
609
Density (mi²)

Portsmouth Population

Portsmouth Population

Data after 2023 is projected based on recent change

Year ↓
Population
Growth
Annual Change
202618700%
202518700%
2024187-2-1.06%
202318910.53%
202218810.53%
202118710.54%
2020186-1-0.53%
2019179-1-0.56%
2018180-2-1.1%
2017182-2-1.09%
2016184-2-1.08%
2015186-1-0.53%
2014187-1-0.53%
2013188-2-1.05%
2012190-2-1.04%
2011192-3-1.54%
201019500%

Median Age

Overall: 47.3 years
Female: 45 years
Male: 49 years

Portsmouth Adults

There are 157 adults, (32 of whom are seniors) in Portsmouth.

Sex Ratio

Female: 108 (52.9%)
Male: 96 (47.1%)

Demographics

The racial composition of Portsmouth includes 91.67% White, and smaller percentages for and multiracial populations.

Population by Race

Race
Population ↓
Percentage (of total)
White18791.67%
Two or more races178.33%
Race
Population ↓
Percentage (of total)
Two or more races41.96%
Race
Population ↓
Percentage (of total)
White18791.67%
Two or more races136.37%

Portsmouth Marital Status

Economics and Income Statistics

Portsmouth 's average per capita income is $63,068. Household income levels show a median of $80,781. The poverty rate stands at 4.9%.

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$117,500-
Families$99,583$104,140
Households$80,781$83,483
Non Families$72,868$54,300

$63,068

Average Income

$80,781

Median Household Income

4.9%

Poverty Rate

Nearby Cities

Sources

  1. US Census State Population Estimates - Most recent state estimates from the Census Bureau's Population Estimates Program
  2. US Census County Population Estimates - Most recent county estimates from the Census Bureau's Population Estimates Program
  3. American Community Survey (2009 - 2013)
  4. Census QuickFacts
  5. Historical Populations of States and Counties (1790 - 1990)