Chesterfield Township, St. Louis County, Missouri
Chesterfield Township is a township in St. Louis County, Missouri. About 43,607 people live there (2020–2024 estimate). It covers 69.2 sq mi (179 km²) of land and uses Central Time. It is a legal area with no government of its own.
- Population, 2020–2024 estimate
- 43,607 ± 1,564
- County
- St. Louis County
- School district
- Rockwood R-VI School District
- Land area
- 69.2 sq mi (179 km²)
- Type
- TownshipNo government of its own
- Time zone
- Central TimeUTC-06:00 in January; UTC-05:00 in July
- Median household income
- $155,390 ± $13,090
- Median home value
- $583,400 ± $20,945
- Water area
- 2.08 sq mi (5.4 km²)
- State
- Missouri
- Census code (GEOID)
- 2918913605
- Coordinates (central point)
- 38.624774, -90.640160
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 Chesterfield Township, largest first
- Chesterfield (city)49,574 people
- Wildwood (city)35,133 people
- Clarkson Valley (city)2,584 people
These places’ central points lie inside Chesterfield 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
- Wildhorse Township3.9 mi southeast
- Lafayette Township5.1 mi east
- Cottleville Township, St. Charles County6.4 mi north
- Harvester Township, St. Charles County7.5 mi northeast
- Meramec Township7.6 mi south
- Missouri River Township9.3 mi east
- Maryland Heights Township9.6 mi northeast
- Boone Township, St. Charles County12 mi west
- Boles Township, Franklin County13 mi southwest
These towns, townships, cities and boroughs share a boundary with Chesterfield Township. Distances are straight lines between central points, not driving distances.
Other townships in St. Louis County, largest first
- Meramec Township41,348 people
- Lewis and Clark Township38,705 people
- Tesson Ferry Township38,647 people
- Clayton Township38,597 people
- Queeny Township38,342 people
- Bonhomme Township37,971 people
- Creve Coeur Township37,727 people
- Maryland Heights Township37,485 people
- Concord Township37,302 people
- Jefferson Township37,258 people
- Oakville Township36,966 people
- Missouri River Township36,328 people
All 27
- Lemay Township35,996 people
- Spanish Lake Township35,714 people
- Hadley Township34,988 people
- Airport Township34,926 people
- Wildhorse Township34,686 people
- Gravois Township34,422 people
- Midland Township33,996 people
- Florissant Township33,887 people
- Ferguson Township33,263 people
- Lafayette Township33,077 people
- Northwest Township32,935 people
- University Township30,442 people
- Normandy Township30,173 people
- St. Ferdinand Township29,631 people
- Norwood Township27,150 people
People counts are American Community Survey 2020–2024 5-year estimates. See St. Louis County for its cities, ZIP Code areas and county seat.
Sunrise and sunset in Chesterfield Township
- Longest day
- 14 hours 52 minutes around June 21
- Shortest day
- 9 hours 28 minutes around December 21
- Earliest sunrise
- 5:37 AM around June 14
- Latest sunrise
- 7:34 AM the day before clocks go back in November
- Earliest sunset
- 4:41 PM around December 7
- Latest sunset
- 8:31 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 | 7:18 AM | 5:05 PM | 9 h 47 min |
| Feb 15 | 6:53 AM | 5:40 PM | 10 h 47 min |
| Mar 15 | 7:13 AM | 7:09 PM | 11 h 56 min |
| Apr 15 | 6:26 AM | 7:39 PM | 13 h 13 min |
| May 15 | 5:50 AM | 8:07 PM | 14 h 17 min |
| Jun 15 | 5:37 AM | 8:28 PM | 14 h 51 min |
| Jul 15 | 5:50 AM | 8:26 PM | 14 h 36 min |
| Aug 15 | 6:16 AM | 7:56 PM | 13 h 40 min |
| Sep 15 | 6:43 AM | 7:10 PM | 12 h 27 min |
| Oct 15 | 7:11 AM | 6:24 PM | 11 h 13 min |
| Nov 15 | 6:44 AM | 4:49 PM | 10 h 5 min |
| Dec 15 | 7:13 AM | 4:42 PM | 9 h 29 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 St. Louis County or the local office.
Find the township or town where you are now or find your county.