Plainfield Flag

Plainfield

County:
Will County
County Seat:
No
Area (mi²):
26.139
State:
Illinois

Plainfield is a village located in Will County, Illinois. Plainfield has a 2026 population of 51,010. Plainfield is currently growing at a rate of 1.93% annually and its population has increased by 13.47% since the most recent census, which recorded a population of 44,955 in 2020.

The median household income in Plainfield is $144,000 with a poverty rate of 4.16%. The median age in Plainfield is 37.5 years: 36.9 years for males, and 37.7 years for females. For every 100 females there are 100.7 males.

51K
Total Population
1,951
Density (mi²)
967 1.93%
Growth

Plainfield Population

Plainfield Population

Year ↓
Population
Growth
Annual Change
202651,0109671.93%
202550,0431,2182.49%
202448,8251,2462.62%
202347,5791,2682.74%
202246,3117011.54%
202145,6106551.46%
202044,955660.15%
201944,2702000.45%
201844,0702500.57%
201743,8208802.05%
201642,9404281.01%
201542,5123770.89%
201442,1353380.81%
201341,7971,2863.17%
201240,5113070.76%
201140,2042140.54%
201039,9904091.03%
200013,0388,481186.11%
19904,55779020.97%
19803,76783928.65%
19702,92800%

Median Age

Overall: 37.5 years
Female: 37.7 years
Male: 36.9 years

Plainfield Adults

There are 33,390 adults, (4,621 of whom are seniors) in Plainfield.

Sex Ratio

Female: 23,277 (49.8%)
Male: 23,431 (50.2%)

Demographics

The racial composition of Plainfield includes 68.61% White, 10.57% Asian, 9.93% Black or African American, and smaller percentages for other race, Native American and multiracial populations.

Population by Race

Race
Population ↓
Percentage (of total)
White32,04668.61%
Asian4,93610.57%
Black or African American4,6369.93%
Two or more races3,7037.93%
Other race1,2002.57%
Native American1870.4%
Race
Population ↓
Percentage (of total)
Two or more races2,0084.3%
White1,0472.24%
Other race9702.08%
Black or African American4160.89%
Asian330.07%
Native American270.06%
Race
Population ↓
Percentage (of total)
White30,99966.37%
Asian4,90310.5%
Black or African American4,2209.03%
Two or more races1,6953.63%
Other race2300.49%
Native American1600.34%

Plainfield Marital Status

Economics and Income Statistics

Plainfield's average per capita income is $79,562. Household income levels show a median of $144,000. The poverty rate stands at 4.16%.

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$172,289-
Families$162,717$186,270
Households$144,000$169,555
Non Families$72,188$76,229

$79,562

Average Income

$144,000

Median Household Income

4.16%

Poverty Rate

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)