Affton is a census-designated place (CDP) in south St. Louis County, Missouri, United States, near St. Louis. The population was 20,417 at the 2020 United States Census.
| Name: | Affton CDP |
|---|---|
| LSAD Code: | 57 |
| LSAD Description: | CDP (suffix) |
| State: | Missouri |
| County: | St. Louis County |
| Elevation: | 558 ft (170 m) |
| Total Area: | 4.57 sq mi (11.84 km²) |
| Land Area: | 4.57 sq mi (11.84 km²) |
| Water Area: | 0.00 sq mi (0.00 km²) |
| Total Population: | 20,417 |
| Population Density: | 4,467.61/sq mi (1,724.78/km²) |
| FIPS code: | 2900280 |
| GNISfeature ID: | 2393314 |
Online Interactive Map
Click on 
to view map in "full screen" mode.
Affton location map. Where is Affton CDP?
Affton Road Map
Affton city Satellite Map
Geography
According to the United States Census Bureau, the community has a total area of 4.6 square miles (12 km), all land.
See also
Map of Missouri State and its subdivision:- Adair
- Andrew
- Atchison
- Audrain
- Barry
- Barton
- Bates
- Benton
- Bollinger
- Boone
- Buchanan
- Butler
- Caldwell
- Callaway
- Camden
- Cape Girardeau
- Carroll
- Carter
- Cass
- Cedar
- Chariton
- Christian
- Clark
- Clay
- Clinton
- Cole
- Cooper
- Crawford
- Dade
- Dallas
- Daviess
- De Kalb
- Dent
- Douglas
- Dunklin
- Franklin
- Gasconade
- Gentry
- Greene
- Grundy
- Harrison
- Henry
- Hickory
- Holt
- Howard
- Howell
- Iron
- Jackson
- Jasper
- Jefferson
- Johnson
- Knox
- Laclede
- Lafayette
- Lawrence
- Lewis
- Lincoln
- Linn
- Livingston
- Macon
- Madison
- Maries
- Marion
- McDonald
- Mercer
- Miller
- Mississippi
- Moniteau
- Monroe
- Montgomery
- Morgan
- New Madrid
- Newton
- Nodaway
- Oregon
- Osage
- Ozark
- Pemiscot
- Perry
- Pettis
- Phelps
- Pike
- Platte
- Polk
- Pulaski
- Putnam
- Ralls
- Randolph
- Ray
- Reynolds
- Ripley
- Saint Charles
- Saint Clair
- Saint Francois
- Saint Louis
- Sainte Genevieve
- Saline
- Schuyler
- Scotland
- Scott
- Shannon
- Shelby
- Stoddard
- Stone
- Sullivan
- Taney
- Texas
- Vernon
- Warren
- Washington
- Wayne
- Webster
- Worth
- Wright
- Alabama
- Alaska
- Arizona
- Arkansas
- California
- Colorado
- Connecticut
- Delaware
- District of Columbia
- Florida
- Georgia
- Hawaii
- Idaho
- Illinois
- Indiana
- Iowa
- Kansas
- Kentucky
- Louisiana
- Maine
- Maryland
- Massachusetts
- Michigan
- Minnesota
- Mississippi
- Missouri
- Montana
- Nebraska
- Nevada
- New Hampshire
- New Jersey
- New Mexico
- New York
- North Carolina
- North Dakota
- Ohio
- Oklahoma
- Oregon
- Pennsylvania
- Rhode Island
- South Carolina
- South Dakota
- Tennessee
- Texas
- Utah
- Vermont
- Virginia
- Washington
- West Virginia
- Wisconsin
- Wyoming
