Plainfield Township, Will County, Illinois

Plainfield Township is a township in Will County, Illinois. About 83,145 people live there (2020–2024 estimate). It covers 33.2 sq mi (86 km²) of land and uses Central Time. It has its own local government.

ChicagoAurora
Plainfield Township in Illinois
Plainfield Township and its neighbors (simplified outlines). Open in OpenStreetMap ↗
Population, 2020–2024 estimate
83,145 ± 62
County
Will County
School district
Plainfield School District 202
Land area
33.2 sq mi (86 km²)
Type
TownshipIts own local government
Time zone
Central TimeUTC-06:00 in January; UTC-05:00 in July
Median household income
$127,061 ± $3,489
Median home value
$321,600 ± $6,281
Water area
2.05 sq mi (5.3 km²)
State
Illinois
Census code (GEOID)
1719760300
Coordinates (central point)
41.593806, -88.199675

These coordinates mark a central point for the area, not a street address. Population, income and home value: U.S. Census Bureau, American Community Survey 2020–2024 5-year estimates, ± margin at 90% confidence; checked on October 20, 2026.

Cities, towns and communities in Plainfield Township, largest first

  1. Plainfield (village)46,708 people
  2. Crystal Lawns (CDP)1,766 people
  3. Sunnyland (CDP)1,231 people

These places’ central points lie inside Plainfield Township. A place can reach across the line, and its government, if it has one, can be separate from the township’s.

Bordering areas, nearest first

  1. Lockport Township5.6 mi east
  2. Na-Au-Say Township, Kendall County5.8 mi west
  3. Troy Township5.9 mi south
  4. Wheatland Township6.1 mi north

These towns, townships, cities and boroughs share a boundary with Plainfield Township. Distances are straight lines between central points, not driving distances.

Other townships in Will County, largest first

  1. Wheatland Township90,134 people
  2. Du Page Township87,582 people
  3. Joliet Township85,288 people
  4. Frankfort Township60,045 people
  5. Lockport Township59,827 people
  6. Troy Township49,728 people
  7. New Lenox Township44,199 people
  8. Homer Township40,989 people
  9. Crete Township23,542 people
  10. Monee Township15,425 people
  11. Manhattan Township12,424 people
  12. Channahon Township10,769 people
All 23
  1. Reed Township6,903 people
  2. Washington Township6,459 people
  3. Wilmington Township5,915 people
  4. Peotone Township4,395 people
  5. Jackson Township3,875 people
  6. Green Garden Township3,862 people
  7. Wesley Township1,819 people
  8. Will Township1,691 people
  9. Custer Township1,503 people
  10. Wilton Township1,055 people
  11. Florence Township888 people

People counts are American Community Survey 2020–2024 5-year estimates. See Will County for its cities, ZIP Code areas and county seat.

Sunrise and sunset in Plainfield Township

Longest day
15 hours 12 minutes around June 21
Shortest day
9 hours 9 minutes around December 21
Earliest sunrise
5:18 AM around June 15
Latest sunrise
7:30 AM the day before clocks go back in November
Earliest sunset
4:22 PM around December 8
Latest sunset
8:31 PM around June 27

Clocks go forward an hour on the second Sunday in March and back on the first Sunday in November, so sunrise and sunset jump an hour later in March and an hour earlier in November.

Sunrise and sunset on the 15th of each month
DaySunriseSunsetDaylight
Jan 157:17 AM4:47 PM9 h 30 min
Feb 156:48 AM5:26 PM10 h 38 min
Mar 157:04 AM6:59 PM11 h 55 min
Apr 156:13 AM7:33 PM13 h 20 min
May 155:33 AM8:05 PM14 h 32 min
Jun 155:18 AM8:28 PM15 h 10 min
Jul 155:31 AM8:25 PM14 h 54 min
Aug 156:01 AM7:52 PM13 h 51 min
Sep 156:32 AM7:02 PM12 h 30 min
Oct 157:04 AM6:11 PM11 h 7 min
Nov 156:41 AM4:32 PM9 h 51 min
Dec 157:12 AM4:23 PM9 h 11 min

Approximate times for a flat horizon at the central point; the days move by a day or so from year to year. Hills and weather can change what you see.

Before using this answer on a form

A township line is not always the line on your mail: a mailing address can name another town or post office, and school districts, ZIP Codes and tax districts follow their own lines. For taxes, voting or permits, check the full address with Will County or the local office.

Find the township or town where you are now or find your county.

See this area on Census.gov ↗