Plainfield township Flag

Plainfield township

County:
Will County
County Seat:
No
Area (mi²):
33.208
State:
Illinois

Plainfield township is located in Will County, Illinois. Plainfield township has a 2026 population of 86,406. Plainfield township is currently growing at a rate of 1.1% annually and its population has increased by 5.13% since the most recent census, which recorded a population of 82,191 in 2020.

The median household income in Plainfield township is $127,061 with a poverty rate of 4.66%. The median age in Plainfield township is 35.4 years: 35.4 years for males, and 35.4 years for females. For every 100 females there are 97.6 males.

86.4K
Total Population
2,602
Density (mi²)
937 1.1%
Growth

Plainfield township Population

Plainfield township Population

Data after 2023 is projected based on recent change

Year ↓
Population
Growth
Annual Change
202686,4069371.1%
202585,4699371.11%
202484,5329371.12%
202383,5958180.99%
202282,777750.09%
202182,7025110.62%
202082,191-37-0.04%
201982,159-43-0.05%
201882,202120.01%
201782,1903430.42%
201681,8473080.38%
201581,539770.09%
201481,462760.09%
201381,3864870.6%
201280,8992420.3%
201180,6573390.42%
201080,4741450.18%

Median Age

Overall: 35.4 years
Female: 35.4 years
Male: 35.4 years

Plainfield township Adults

There are 61,384 adults, (7,938 of whom are seniors) in Plainfield township.

Sex Ratio

Female: 42,083 (50.6%)
Male: 41,062 (49.4%)

Demographics

The racial composition of Plainfield township includes 64.84% White, 11.24% Black or African American, 6.12% other race, 4.86% Asian, and smaller percentages for Native American and multiracial populations.

Population by Race

Race
Population ↓
Percentage (of total)
White53,91164.84%
Two or more races10,24912.33%
Black or African American9,34511.24%
Other race5,0876.12%
Asian4,0374.86%
Native American5160.62%
Race
Population ↓
Percentage (of total)
Two or more races7,6299.18%
Other race4,7875.76%
White4,1184.95%
Native American4960.6%
Black or African American4070.49%
Asian540.06%
Race
Population ↓
Percentage (of total)
White49,79359.89%
Black or African American8,93810.75%
Asian3,9834.79%
Two or more races2,6203.15%
Other race3000.36%
Native American200.02%

Plainfield township Marital Status

Economics and Income Statistics

Plainfield township 's average per capita income is $63,837. Household income levels show a median of $127,061. The poverty rate stands at 4.66%.

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$147,422-
Families$136,136$148,892
Households$127,061$141,254
Non Families$77,581$89,769

$63,837

Average Income

$127,061

Median Household Income

4.66%

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)