Plymouth Flag

Plymouth

County:
Marshall County
County Seat:
Yes
Area (mi²):
7.571
State:
Indiana

Plymouth is a city located in Marshall County, Indiana. Plymouth has a 2025 population of 11,507. It is also the county seat of Marshall County. Plymouth is currently growing at a rate of 2.3% annually and its population has increased by 12.68% since the most recent census, which recorded a population of 10,212 in 2020.

The average household income in Plymouth is $69,851 with a poverty rate of 14.98%.The median age in Plymouth is 34.9 years: 30.4 years for males, and 39.3 years for females.

11.5K
Total Population
1,520
Density (mi²)
259 2.3%
Growth

Plymouth Population

Plymouth Population

Data after 2023 is projected based on recent change

Demographics

The racial composition of Plymouth includes 81.02% White, 12.74% other race, and smaller percentages for Black or African American, Asian, Native American, Native Hawaiian or Pacific Islander and multiracial populations.

Population by Race

Race
Population
Percentage (of total)
White8,51281.02%
Other race1,33812.74%
Two or more races4724.49%
Black or African American740.7%
Asian690.66%
Native American290.28%
Native Hawaiian or Pacific Islander120.11%

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 $41,953. Household income levels show a median of $53,115. The poverty rate stands at 14.98%.

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$93,006-
Families$82,517$83,859
Households$53,115$69,851
Non Families$43,154$51,426

$41,953

Average Income

$53,115

Median Household Income

14.98%

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)