Plymouth Flag

Plymouth

County Seat:
No
Area (mi²):
0.441
State:
Iowa

Plymouth is a city located in Cerro Gordo County, Iowa. Plymouth has a 2025 population of 361. Plymouth is currently declining at a rate of -1.1% annually and its population has decreased by -5.25% since the most recent census, which recorded a population of 381 in 2020.

The average household income in Plymouth is $74,799 with a poverty rate of 7.65%.The median age in Plymouth is 38 years: 33.5 years for males, and 43 years for females.

361
Total Population
818
Density (mi²)
-4 -1.1%
Growth

Plymouth Population

Plymouth Population

Data after 2023 is projected based on recent change

Demographics

The racial composition of Plymouth includes 98.02% White, and smaller percentages for Two or more races, Black or African American, Native American, Asian and multiracial populations.

Population by Race

Race
Population
Percentage (of total)
White39798.02%
Two or more races40.99%
Black or African American20.49%
Native American10.25%
Asian10.25%

Plymouth Marital Status

OverallMalesFemales0%10%20%30%40%50%60%70%80%90%100%

Married

Widowed

Divorced

Separated

Never Married

Economics and Income Statistics

Plymouth's average per capita income is $41,792. Household income levels show a median of $66,250. The poverty rate stands at 7.65%.

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$105,156-
Families$76,250$84,639
Households$66,250$74,799
Non Families$40,455$41,807

$41,792

Average Income

$66,250

Median Household Income

7.65%

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)