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.

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

White

Other race

Two or more races

Black or African American

Asian

Native American

Native Hawaiian or Pacific Islander

Race	Population	Percentage (of total)
White	8,512	81.02%
Other race	1,338	12.74%
Two or more races	472	4.49%
Black or African American	74	0.7%
Asian	69	0.66%
Native American	29	0.28%
Native Hawaiian or Pacific Islander	12	0.11%

Plymouth Marital Status

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