Andover Township, Henry County, Illinois
Andover Township is a township in Henry County, Illinois. About 606 people live there (2020–2024 estimate). It covers 36.6 sq mi (94.7 km²) of land and uses Central Time. It has its own local government.
- Population, 2020–2024 estimate
- 606 ± 157
- County
- Henry County
- School district
- Cambridge Community Unit School District 227
- Land area
- 36.6 sq mi (94.7 km²)
- Type
- TownshipIts own local government
- Time zone
- Central TimeUTC-06:00 in January; UTC-05:00 in July
- Median household income
- $67,917 ± $29,169
- Median home value
- $196,000 ± $28,711
- State
- Illinois
- Census code (GEOID)
- 1707301504
- Coordinates (central point)
- 41.280628, -90.261594
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.
Census place in Andover Township
- Andover (village)434 people
This place’s central point lies inside Andover 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
- Clover Township6.0 mi south
- Osco Township6.0 mi north
- Cambridge Township6.6 mi east
- Lynn Township6.9 mi west
- Weller Township8.7 mi southeast
These towns, townships, cities and boroughs share a boundary with Andover Township. Distances are straight lines between central points, not driving distances.
Other townships in Henry County, largest first
- Kewanee Township9,622 people
- Geneseo Township7,520 people
- Colona Township6,633 people
- Wethersfield Township3,746 people
- Western Township2,887 people
- Hanna Township2,872 people
- Galva Township2,669 people
- Cambridge Township2,255 people
- Phenix Township1,780 people
- Oxford Township1,213 people
- Annawan Township1,084 people
- Atkinson Township1,070 people
All 23
- Lynn Township917 people
- Clover Township818 people
- Edford Township563 people
- Yorktown Township503 people
- Osco Township386 people
- Munson Township339 people
- Weller Township290 people
- Loraine Township280 people
- Cornwall Township239 people
- Burns Township230 people
- Alba Township121 people
People counts are American Community Survey 2020–2024 5-year estimates. See Henry County for its cities, ZIP Code areas and county seat.
Sunrise and sunset in Andover Township
- Longest day
- 15 hours 9 minutes around June 21
- Shortest day
- 9 hours 11 minutes around December 21
- Earliest sunrise
- 5:27 AM around June 14
- Latest sunrise
- 7:38 AM the day before clocks go back in November
- Earliest sunset
- 4:31 PM around December 8
- Latest sunset
- 8:38 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 | 7:24 AM | 4:56 PM | 9 h 32 min |
| Feb 15 | 6:55 AM | 5:34 PM | 10 h 39 min |
| Mar 15 | 7:12 AM | 7:07 PM | 11 h 55 min |
| Apr 15 | 6:21 AM | 7:41 PM | 13 h 20 min |
| May 15 | 5:42 AM | 8:12 PM | 14 h 30 min |
| Jun 15 | 5:27 AM | 8:35 PM | 15 h 8 min |
| Jul 15 | 5:40 AM | 8:32 PM | 14 h 52 min |
| Aug 15 | 6:10 AM | 8:00 PM | 13 h 50 min |
| Sep 15 | 6:41 AM | 7:10 PM | 12 h 29 min |
| Oct 15 | 7:12 AM | 6:20 PM | 11 h 8 min |
| Nov 15 | 6:49 AM | 4:41 PM | 9 h 52 min |
| Dec 15 | 7:19 AM | 4:32 PM | 9 h 13 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 Henry County or the local office.
Find the township or town where you are now or find your county.