Plainville is located in Norfolk County, Massachusetts. Plainville has a 2025 population of 10,177 . Plainville is currently growing at a rate of 1.09% annually and its population has increased by 2.48% since the most recent census, which recorded a population of 9,931 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. For every 100 females there are 98.0 males.
Data after 2023 is projected based on recent change
The racial composition of Plainville includes 81.03% White, 6.43% Black or African American, 4.86% other race, and smaller percentages for Asian and multiracial populations.
White (81.03%)
Black or African American (6.43%)
Two or more races (4.98%)
Other race (4.86%)
Asian (2.69%)
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% |
Married
Widowed
Divorced
Separated
Never Married
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%.
Name | Median | Mean |
|---|---|---|
| Married Families | $116,964 | - |
| Families | $110,101 | $140,047 |
| Households | $95,625 | $120,495 |
| Non Families | $44,861 | $66,698 |
Average Income
Median Household Income
Poverty Rate