Plainfield, IL Profile: Facts, Map & Data


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Plainfield, Illinois - Basic Facts

The Village of Plainfield had a population of 42,717 as of July 1, 2017. Plainfield ranks in the upper quartile for Population Density and Diversity Index when compared to the other cities, towns and Census Designated Places (CDPs) in Illinois. See peer rankings below.

The primary coordinate point for Plainfield is located at latitude 41.6305 and longitude -88.245 in Will County. The formal boundaries for the Village of Plainfield (see map below) encompass a land area of 23.32 sq. miles and a water area of 0.98 sq. miles. Will County is in the Central time zone (GMT -6). The elevation is 617 feet.

The Village of Plainfield (GNIS ID: 2399684) has a C1 Census Class Code which indicates an active incorporated place that does not serve as a county subdivision equivalent. It also has a Functional Status Code of "A" which identifies an active government providing primary general-purpose functions.

The Village of Plainfield is located within Township of Plainfield, a minor civil division (MCD) of Will County.

Beneath the boundary map are tables with Plainfield population, income and housing data, five-year growth projections and peer comparisons for key demographic data. The estimates are for July 1, 2017.

Alternate Unofficial Names for Plainfield: Walkers Grove.

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Village of Plainfield, IL Boundary Map

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Boundary Maps: Township of Plainfield | Will County | Illinois Counties

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Plainfield, IL Data & Demographics (As of July 1, 2017)


Total Population 42,717
Daytime Population: Workers 14,862
Daytime Population: Residents 20,922
Total Daytime Population (TDP) 35,784
Ratio TDP/Total Population1 0.84
Population in Households 42,607
Population in Familes 39,508
Population in Group Qrtrs 110
Population Density2 1,832
Diversity Index3 52


Median Household Income $109,932
Average Household Income $128,456
Per Capita Income $38,753


Total Housing Units 13,114 (100%)
Owner Occupied HU 11,236 (85.7%)
Renter Occupied HU 1,551 (11.8%)
Vacant Housing Units 327 ( 2.5%)
Median Home Value $301,515
Average Home Value $329,873


Total Households 12,787
Average Household Size 3.33
Family Households 10,782
Average Family Size 4
  1. If the ratio of the TDP to Total Population is greater than 1, the location gains population during the day when commuting workers are present. If the ratio is less than 1, the location is more of a bedroom community where people commute to another place for work.
  2. Population Density = Total Population per square mile.
  3. The Diversity Index is a scale of 0 to 100 that represents the likelihood that two persons, chosen at random from the same area, belong to different race or ethnic groups. If an area's entire population belongs to one race AND one ethnic group, then the area has zero diversity. An area's diversity index increases to 100 when the population is evenly divided into two or more race/ethnic groups.


2010-2017 2017-2022
Population 1.09% 1.11%
Households 1.0% 1.08%
Families 0.86% 1.02%
Median Household Income   1.45%
Per Capita Income   2.53%

Plainfield, IL - Peer Comparisons by Rank and Percentile

The table below compares Plainfield to the other 1,368 incorporated cities, towns and CDPs in Illinois by rank and percentile using July 1, 2017 data. The location Ranked # 1 has the highest value. A location that ranks higher than 75% of its peers would be in the 75th percentile of the peer group.

Variable Description Rank Percentile
Total Population # 37 97th
Population Density # 327 76th
Diversity Index # 171 88th
Median Household Income # 46 97th
Per Capita Income # 147 89th

Additional comparisons and rankings can be made with a VERY EASY TO USE Illinois Census Data Comparison Tool.

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