Plainville

County:: Norfolk County
County Seat:: No
Area (mi²):: 10.988
State:: Massachusetts

Plainville is located in Norfolk County, Massachusetts. Plainville has a 2025 population of 9,891. Plainville is currently growing at a rate of 0.05% annually but its population has decreased by -0.39% since the most recent census, which recorded a population of 9,930 in 2020.

The average household income in Plainville is $120,495 with a poverty rate of 8.21%. The median age in Plainville is 43.6 years: 39 years for males, and 47.6 years for females.

Demographics

The racial composition of Plainville includes 81.03% White, 6.43% Black or African American, 4.86% other race, and smaller percentages for Asian, Native American, Native Hawaiian or Pacific Islander and multiracial populations.

Population by Race

White

Black or African American

Two or more races

Other race

Asian

Native American

Native Hawaiian or Pacific Islander

Race	Population	Percentage (of total)
White	7,999	81.03%
Black or African American	635	6.43%
Two or more races	492	4.98%
Other race	480	4.86%
Asian	266	2.69%
Native American	0	0%
Native Hawaiian or Pacific Islander	0	0%

Plainville Marital Status

Married

Widowed

Divorced

Separated

Never Married

Economics and Income Statistics

Plainville's average per capita income is $61,230. Household income levels show a median of $95,625. The poverty rate stands at 8.21%.

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	$116,964	-
Families	$110,101	$140,047
Households	$95,625	$120,495
Non Families	$44,861	$66,698

$61,230

Average Income

$95,625

Median Household Income

8.21%

Poverty Rate