Greenfield Township, Grundy County, Illinois
Greenfield Township is a township in Grundy County, Illinois. About 789 people live there (2020–2024 estimate). It covers 17.3 sq mi (44.9 km²) of land and uses Central Time. It has its own local government.
- Population, 2020–2024 estimate
- 789 ± 163
- County
- Grundy County
- School district
- Gardner-South Wilmington Township High School District9–12 · high school
- Land area
- 17.3 sq mi (44.9 km²)
- Type
- TownshipIts own local government
- Time zone
- Central TimeUTC-06:00 in January; UTC-05:00 in July
- Median household income
- $88,750 ± $10,075
- Median home value
- $182,800 ± $13,380
- Water area
- 0.74 sq mi (1.91 km²)
- State
- Illinois
- Census code (GEOID)
- 1706331381
- Coordinates (central point)
- 41.148911, -88.269848
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 Greenfield Township, largest first
- South Wilmington (village)600 people
- East Brooklyn (village)50 people
These places’ central points lie inside Greenfield 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
- Garfield Township3.1 mi west
- Essex Township, Kankakee County4.6 mi east
- Round Grove Township, Livingston County5.9 mi south
- Braceville Township6.6 mi north
- Norton Township, Kankakee County7.6 mi southeast
These towns, townships, cities and boroughs share a boundary with Greenfield Township. Distances are straight lines between central points, not driving distances.
Other townships in Grundy County, largest first
- Aux Sable Township15,630 people
- Morris Township7,239 people
- Braceville Township6,529 people
- Saratoga Township6,483 people
- Felix Township4,469 people
- Wauponsee Township2,742 people
- Erienna Township2,626 people
- Mazon Township1,663 people
- Garfield Township1,511 people
- Goose Lake Township1,170 people
- Nettle Creek Township805 people
- Vienna Township600 people
All 16
- Highland Township285 people
- Norman Township243 people
- Goodfarm Township234 people
- Maine Township201 people
People counts are American Community Survey 2020–2024 5-year estimates. See Grundy County for its cities, ZIP Code areas and county seat.
Sunrise and sunset in Greenfield Township
- Longest day
- 15 hours 9 minutes around June 21
- Shortest day
- 9 hours 13 minutes around December 21
- Earliest sunrise
- 5:19 AM around June 14
- Latest sunrise
- 7:29 AM the day before clocks go back in November
- Earliest sunset
- 4:24 PM around December 8
- Latest sunset
- 8:29 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.
| Day | Sunrise | Sunset | Daylight |
|---|---|---|---|
| Jan 15 | 7:16 AM | 4:49 PM | 9 h 33 min |
| Feb 15 | 6:47 AM | 5:27 PM | 10 h 40 min |
| Mar 15 | 7:04 AM | 6:59 PM | 11 h 55 min |
| Apr 15 | 6:13 AM | 7:32 PM | 13 h 19 min |
| May 15 | 5:35 AM | 8:04 PM | 14 h 29 min |
| Jun 15 | 5:19 AM | 8:27 PM | 15 h 8 min |
| Jul 15 | 5:33 AM | 8:24 PM | 14 h 51 min |
| Aug 15 | 6:02 AM | 7:51 PM | 13 h 49 min |
| Sep 15 | 6:33 AM | 7:02 PM | 12 h 29 min |
| Oct 15 | 7:04 AM | 6:12 PM | 11 h 8 min |
| Nov 15 | 6:40 AM | 4:34 PM | 9 h 54 min |
| Dec 15 | 7:11 AM | 4:25 PM | 9 h 14 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 Grundy County or the local office.
Find the township or town where you are now or find your county.