Plainfield, Illinois Population 2026
Updated April 2026 · US Census ACS 2023 5-Year Estimates
The population of Plainfield, Illinois is 45,705 as of the 2023 American Community Survey, making it the 32nd-largest city in Illinois. The median household income is $142,265, the median home value is $398,000, and the median age is 37.3.
The population has grown 22.2% since 2010 (39,994 → 48,881).
45,705
Population
1764
People / sq mi
$142,265
Median Income
$398,000
Median Home Value
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Plainfield covers 25.9 sq mi of land at 1764 people per square mile.
About Plainfield, IL
Homeownership is the standout figure in Plainfield: 88.7% of homes are owner-occupied, higher than the national rate. With 45,705 residents, Plainfield is a city in Illinois. It ranks #32 among cities in Illinois by population.
Households here are among the highest-earning of all US cities: median income is $142,265, above the US median of $78,538. Only 2.6% of residents live in poverty, below the national 12.4%. The typical home is valued at $398,000, with typical rent around $1,889.
About 54.9% of adults 25 and older have a bachelor’s degree, above the 35.0% national figure. About 21.3% of workers primarily work from home, above the national 14.0%, and the average commute runs about 34 minutes each way.
The ownership rate anchors the housing story in Plainfield, and tends to move with the age structure and home-value figures above.
Plainfield village Population History (2010-2024)
The city of Plainfield village had a population of 39,994 in 2010 and 48,881 in 2024, a 22.2% growth over 14 years. The peak was 48,881 in 2024. Average annual growth rate: 1.45%.
48,881
Population (2024)
39,994
Population (2010)
48,881
Peak (2024)
1.45%
Avg Annual Growth
| Year | Population |
|---|---|
| 2010 | 39,994 |
| 2011 | 40,208 |
| 2012 | 40,515 |
| 2013 | 41,800 |
| 2014 | 42,137 |
| 2015 | 42,518 |
| 2016 | 42,941 |
| 2017 | 43,832 |
| 2018 | 44,084 |
| 2019 | 44,308 |
| 2020 | 44,970 |
| 2021 | 45,626 |
| 2022 | 46,349 |
| 2023 | 47,607 |
| 2024 | 48,881 |
Race & Ethnicity
| White | 72.3% |
| Black or African American | 9.0% |
| Asian | 0.0% |
| Hispanic or Latino (any race) | 1.1% |
| Two or More Races | 0.0% |
Economy & Income
$142,265
Median Household Income
$53,675
Per Capita Income
2.6%
Poverty Rate
2.7%
Unemployment Rate
Housing
$398,000
Median Home Value
$1,889
Median Rent
88.7%
Owner-Occupied
Education
95.4%
High School+
54.9%
Bachelor's+
Commute
1.6%
Drive Alone
70.6%
Public Transit
21.3%
Work From Home
34.1 min
Avg Commute
Community Profile
18.9%
Foreign Born
82.0%
Non-English at Home
4.0%
Veterans
8.3%
With Disability
96.7%
Health Insurance
98.8%
Internet Access
Employment by Industry
| Professional, Scientific & Management | 24.2% |
| Finance, Insurance & Real Estate | 13.8% |
| Retail Trade | 8.9% |
| Manufacturing | 8.7% |
| Information | 8.7% |
| Education, Health Care & Social Services | 7.1% |
| Arts, Entertainment & Food Services | 5.0% |
| Construction | 4.2% |
| Public Administration | 2.7% |
| Transportation & Warehousing | 1.0% |
| Agriculture & Mining | 1.0% |
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Frequently Asked Questions
Plainfield, Illinois has a population of 45,705 according to the US Census Bureau's 2023 American Community Survey 5-year estimates, making it the 32nd-largest city in Illinois.
The median household income in Plainfield, Illinois is $142,265, with 2.6% of residents living below the federal poverty level.
The median home value in Plainfield, Illinois is $398,000, with median monthly rent at $1,889 and a homeownership rate of 88.7%.
The median age in Plainfield, Illinois is 37.3 years. The population is 50.3% male and 49.7% female.
The population has grown 22.2% since 2010 (39,994 → 48,881).
Plainfield village, IL Climate
Plainfield village, IL has an average annual temperature of 9.9°C (50°F) and receives about 941 mm of precipitation per year. The warmest month is July and the coldest is January. Figures are 1970–2000 climate normals.
9.9°C
Avg Temp
941
Precip (mm/yr)
Jul
Hottest Month
Jan
Coldest Month
| Month | Avg (°C/°F) | Precip |
|---|---|---|
| January | -6° / 21° | 39 mm |
| February | -3° / 27° | 36 mm |
| March | 3° / 38° | 68 mm |
| April | 10° / 49° | 98 mm |
| May | 16° / 61° | 98 mm |
| June | 21° / 70° | 105 mm |
| July | 24° / 74° | 99 mm |
| August | 22° / 72° | 99 mm |
| September | 18° / 65° | 94 mm |
| October | 12° / 53° | 68 mm |
| November | 4° / 40° | 76 mm |
| December | -3° / 27° | 61 mm |
1970–2000 normals from WorldClim 2.1 (~9 km grid). Precipitation can be less precise near mountains or coastlines, where rainfall varies sharply over short distances.
Best time to visit Plainfield village, IL
The most comfortable months to visit Plainfield village, IL are typically June, August and July, when temperatures are mildest and rainfall is relatively low. The hottest month is July (around 30°C high). The coldest is January (near -11°C low). June is usually the wettest month.
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Data from the American Community Survey (ACS) 5-Year estimates.
Source: U.S. Census Bureau ACS, 2026.