Plainfield, Indiana Population 2026
Updated April 2026 · US Census ACS 2023 5-Year Estimates
The population of Plainfield, Indiana is 35,783 as of the 2023 American Community Survey, making it the 27th-largest city in Indiana. The median household income is $85,074, the median home value is $263,900, and the median age is 38.0.
The population has grown 36.0% since 2010 (27,791 → 37,796).
35,783
Population
1329
People / sq mi
$85,074
Median Income
$263,900
Median Home Value
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Plainfield covers 26.9 sq mi of land at 1329 people per square mile.
About Plainfield, IN
What distinguishes Plainfield is density: among the most sparsely settled of US cities, around 1,329 people per square mile. With 35,783 residents, Plainfield is a city in Indiana. It ranks #27 among cities in Indiana by population.
The typical household here earns about $85,074, above the US median of $78,538. The poverty rate, 3.8%, is on the lower side for US cities and below the national 12.4%. Homes carry a median value of $263,900, with typical rent around $1,313.
Roughly 33.7% of adults have a bachelor’s, near the national 35.0%. Remote work is below the national 14.0% at 12.9%, and the average commute runs about 23 minutes each way.
Plainfield town Population History (2010-2024)
The city of Plainfield town had a population of 27,791 in 2010 and 37,796 in 2024, a 36.0% growth over 14 years. The peak was 37,796 in 2024. Average annual growth rate: 2.23%.
37,796
Population (2024)
27,791
Population (2010)
37,796
Peak (2024)
2.23%
Avg Annual Growth
| Year | Population |
|---|---|
| 2010 | 27,791 |
| 2011 | 28,482 |
| 2012 | 29,271 |
| 2013 | 30,122 |
| 2014 | 30,468 |
| 2015 | 30,590 |
| 2016 | 31,419 |
| 2017 | 32,938 |
| 2018 | 34,344 |
| 2019 | 35,287 |
| 2020 | 34,899 |
| 2021 | 35,558 |
| 2022 | 36,239 |
| 2023 | 37,167 |
| 2024 | 37,796 |
Race & Ethnicity
| White | 73.7% |
| Black or African American | 8.7% |
| Asian | 0.0% |
| Hispanic or Latino (any race) | 1.5% |
| Two or More Races | 0.0% |
Economy & Income
$85,074
Median Household Income
$40,108
Per Capita Income
3.8%
Poverty Rate
1.8%
Unemployment Rate
Housing
$263,900
Median Home Value
$1,313
Median Rent
63.7%
Owner-Occupied
Education
89.9%
High School+
33.7%
Bachelor's+
Commute
0.4%
Drive Alone
75.6%
Public Transit
12.9%
Work From Home
22.9 min
Avg Commute
Community Profile
27.2%
Foreign Born
85.8%
Non-English at Home
6.0%
Veterans
11.2%
With Disability
91.5%
Health Insurance
96.0%
Internet Access
Employment by Industry
| Professional, Scientific & Management | 20.9% |
| Retail Trade | 14.2% |
| Finance, Insurance & Real Estate | 13.1% |
| Manufacturing | 10.7% |
| Education, Health Care & Social Services | 7.3% |
| Construction | 5.9% |
| Information | 4.9% |
| Public Administration | 4.3% |
| Arts, Entertainment & Food Services | 3.6% |
| Transportation & Warehousing | 1.0% |
| Agriculture & Mining | 0.6% |
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Frequently Asked Questions
Plainfield, Indiana has a population of 35,783 according to the US Census Bureau's 2023 American Community Survey 5-year estimates, making it the 27th-largest city in Indiana.
The median household income in Plainfield, Indiana is $85,074, with 3.8% of residents living below the federal poverty level.
The median home value in Plainfield, Indiana is $263,900, with median monthly rent at $1,313 and a homeownership rate of 63.7%.
The median age in Plainfield, Indiana is 38.0 years. The population is 54.6% male and 45.4% female.
The population has grown 36.0% since 2010 (27,791 → 37,796).
Plainfield town, IN Climate
Plainfield town, IN has an average annual temperature of 11°C (52°F) and receives about 1040 mm of precipitation per year. The warmest month is July and the coldest is January. Figures are 1970–2000 climate normals.
11°C
Avg Temp
1040
Precip (mm/yr)
Jul
Hottest Month
Jan
Coldest Month
| Month | Avg (°C/°F) | Precip |
|---|---|---|
| January | -4° / 26° | 59 mm |
| February | -1° / 30° | 60 mm |
| March | 5° / 41° | 87 mm |
| April | 11° / 51° | 97 mm |
| May | 17° / 62° | 111 mm |
| June | 22° / 71° | 98 mm |
| July | 24° / 75° | 114 mm |
| August | 23° / 73° | 96 mm |
| September | 19° / 66° | 76 mm |
| October | 12° / 54° | 72 mm |
| November | 6° / 42° | 92 mm |
| December | 0° / 31° | 78 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 town, IN
The most comfortable months to visit Plainfield town, IN are typically June, September and August, when temperatures are mildest and rainfall is relatively low. The hottest month is July (around 30°C high). The coldest is January (near -8°C low). July 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.