Irvington Township, Washington County, Illinois
Irvington Township is a township in Washington County, Illinois. About 1,250 people live there (2020–2024 estimate). It covers 48.5 sq mi (126 km²) of land and uses Central Time. It has its own local government.
- Population, 2020–2024 estimate
- 1,250 ± 163
- County
- Washington County
- School districts
- Centralia High School District 2009–12 · high schoolIrvington County Community Unit School District 11Pre-K to 8 · elementary
- Land area
- 48.5 sq mi (126 km²)
- Type
- TownshipIts own local government
- Time zone
- Central TimeUTC-06:00 in January; UTC-05:00 in July
- Median household income
- $72,115 ± $5,572
- Median home value
- $100,800 ± $18,148
- Water area
- 0.1 sq mi (0.27 km²)
- State
- Illinois
- Census code (GEOID)
- 1718937790
- Coordinates (central point)
- 38.450534, -89.198085
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 Irvington Township, largest first
- Wamac (city)804 people
- Irvington (village)774 people
These places’ central points lie inside Irvington 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
- Richview Township5.4 mi south
- Brookside Township, Clinton County5.8 mi north
- Grand Prairie Township, Jefferson County6.0 mi east
- Hoyleton Township6.4 mi west
- Centralia Township, Marion County7.7 mi northeast
These towns, townships, cities and boroughs share a boundary with Irvington Township. Distances are straight lines between central points, not driving distances.
Other townships in Washington County, largest first
- Nashville Township3,433 people
- Okawville Township1,959 people
- Hoyleton Township1,305 people
- Oakdale Township842 people
- Ashley Township751 people
- Beaucoup Township668 people
- Lively Grove Township561 people
- Du Bois Township434 people
- Pilot Knob Township416 people
- Johannisburg Township391 people
- Venedy Township391 people
- Plum Hill Township388 people
All 15
- Covington Township319 people
- Bolo Township260 people
- Richview Township259 people
People counts are American Community Survey 2020–2024 5-year estimates. See Washington County for its cities, ZIP Code areas and county seat.
Sunrise and sunset in Irvington Township
- Longest day
- 14 hours 51 minutes around June 21
- Shortest day
- 9 hours 29 minutes around December 21
- Earliest sunrise
- 5:32 AM around June 14
- Latest sunrise
- 7:28 AM the day before clocks go back in November
- Earliest sunset
- 4:35 PM around December 7
- Latest sunset
- 8:24 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.
| Day | Sunrise | Sunset | Daylight |
|---|---|---|---|
| Jan 15 | 7:12 AM | 4:59 PM | 9 h 47 min |
| Feb 15 | 6:47 AM | 5:34 PM | 10 h 47 min |
| Mar 15 | 7:08 AM | 7:03 PM | 11 h 55 min |
| Apr 15 | 6:21 AM | 7:33 PM | 13 h 12 min |
| May 15 | 5:45 AM | 8:01 PM | 14 h 16 min |
| Jun 15 | 5:32 AM | 8:22 PM | 14 h 50 min |
| Jul 15 | 5:44 AM | 8:20 PM | 14 h 36 min |
| Aug 15 | 6:11 AM | 7:50 PM | 13 h 39 min |
| Sep 15 | 6:38 AM | 7:05 PM | 12 h 27 min |
| Oct 15 | 7:05 AM | 6:18 PM | 11 h 13 min |
| Nov 15 | 6:38 AM | 4:44 PM | 10 h 6 min |
| Dec 15 | 7:06 AM | 4:36 PM | 9 h 30 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 Washington County or the local office.
Find the township or town where you are now or find your county.