South Flannigan Township, Hamilton County, Illinois

South Flannigan Township is a township in Hamilton County, Illinois. About 112 people live there (2020–2024 estimate). It covers 18.3 sq mi (47.5 km²) of land and uses Central Time. It has its own local government.

ChicagoAurora
South Flannigan Township in Illinois
South Flannigan Township and its neighbors (simplified outlines). Open in OpenStreetMap ↗
Population, 2020–2024 estimate
112 ± 62
County
Hamilton County
Land area
18.3 sq mi (47.5 km²)
Type
TownshipIts own local government
Time zone
Central TimeUTC-06:00 in January; UTC-05:00 in July
Median household income
$73,333 ± $56,480
Median home value
$159,400 ± $115,323
Water area
0.04 sq mi (0.1 km²)
State
Illinois
Census code (GEOID)
1706570785
Coordinates (central point)
37.929810, -88.650877

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.

Bordering areas, nearest first

  1. Tate Township, Saline County3.2 mi south
  2. Flannigan Township4.1 mi north
  3. South Twigg Township5.7 mi east
  4. Cave Township, Franklin County5.9 mi west

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

Other townships in Hamilton County, largest first

  1. McLeansboro Township3,644 people
  2. Dahlgren Township1,390 people
  3. Mayberry Township557 people
  4. Knight Prairie Township530 people
  5. Crouch Township427 people
  6. Crook Township358 people
  7. Twigg Township301 people
  8. Flannigan Township266 people
  9. Beaver Creek Township148 people
  10. South Crouch Township101 people
  11. South Twigg Township82 people

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

Sunrise and sunset in South Flannigan Township

Longest day
14 hours 48 minutes around June 21
Shortest day
9 hours 32 minutes around December 21
Earliest sunrise
5:31 AM around June 13
Latest sunrise
7:25 AM the day before clocks go back in November
Earliest sunset
4:35 PM around December 6
Latest sunset
8:21 PM around June 28

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 157:09 AM4:59 PM9 h 50 min
Feb 156:44 AM5:33 PM10 h 49 min
Mar 157:05 AM7:01 PM11 h 56 min
Apr 156:19 AM7:30 PM13 h 11 min
May 155:44 AM7:57 PM14 h 13 min
Jun 155:31 AM8:18 PM14 h 47 min
Jul 155:44 AM8:16 PM14 h 32 min
Aug 156:09 AM7:47 PM13 h 38 min
Sep 156:36 AM7:02 PM12 h 26 min
Oct 157:02 AM6:17 PM11 h 15 min
Nov 156:34 AM4:42 PM10 h 8 min
Dec 157:03 AM4:36 PM9 h 33 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 Hamilton County or the local office.

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

See this area on Census.gov ↗