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 2026 population of 362. Plymouth is currently declining at a rate of -0.82% annually and its population has decreased by -4.49% since the most recent census, which recorded a population of 379 in 2020.

The median household income in Plymouth is $80,000 with a poverty rate of 13.02%. The median age in Plymouth is 38.8 years: 31 years for males, and 44.6 years for females. For every 100 females there are 140.8 males.

362
Total Population
820
Density (mi²)
-3 -0.82%
Growth

Plymouth Population

Plymouth Population

Data after 2023 is projected based on recent change

Year ↓
Population
Growth
Annual Change
2026362-3-0.82%
2025365-3-0.82%
202436800%
202336800%
2022368-4-1.08%
2021372-7-1.85%
2020379-1-0.26%
2019366-1-0.27%
2018367-3-0.81%
2017370-3-0.8%
201637300%
2015373-3-0.8%
2014376-3-0.79%
2013379-1-0.26%
2012380-4-1.04%
201138420.52%
2010385-1-0.26%

Median Age

Overall: 38.8 years
Female: 44.6 years
Male: 31 years

Plymouth Adults

There are 313 adults, (50 of whom are seniors) in Plymouth.

Sex Ratio

Female: 169 (41.5%)
Male: 238 (58.5%)

Demographics

The racial composition of Plymouth includes 97.54% 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)
White39797.54%
Two or more races51.23%
Black or African American30.74%
Native American10.25%
Asian10.25%
Race
Population ↓
Percentage (of total)
White20.49%
Native American10.25%
Race
Population ↓
Percentage (of total)
White39597.05%
Two or more races51.23%
Black or African American30.74%
Asian10.25%

Plymouth Marital Status

Economics and Income Statistics

Plymouth 's average per capita income is $49,643. Household income levels show a median of $80,000. The poverty rate stands at 13.02%.

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$107,679-
Families$90,625$91,137
Households$80,000$77,182
Non Families$41,094$42,279

$49,643

Average Income

$80,000

Median Household Income

13.02%

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)