Affton, Missouri
Affton: census designated place
About
Affton is a CDP located in the county of Saint Louis in the U.S. state of Missouri.
Quick Facts about Affton
| Population | 20,307 |
| Country | United States of America |
| State | Missouri (United States) |
| County | Saint Louis County |
| Postal code | 63123 |
| Area | 12.37 km2 |
| Latitude & Longitude | 38.5506,-90.3332 |
| Altitude | 617 feet / 188 meters |
| Time Zone | Central Time Zone |
| Local time | 22:26:07 (14th April 2026) |
| Weather | 89℉ Partly Sunny then Chance Showers And Thunderstorms 7-days weather |
Geography
Affton is located at 38°33'2"N 90°19'59"W (38.5506100, -90.3331700).
Affton map
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Weather
A chance of showers and thunderstorms after 1pm. Partly sunny, with a high near 89. Southwest wind 9 to 13 mph, with gusts as high as 24 mph. Chance o...
7-Day ForecastPeople born in Affton (1)
American baseball player Ed Albrecht was born in Affton
Nearby Schools and Colleges
Schools and campuses linked to Affton, MO. Select a name to open its map and contact details.
| Code | Name | City | ZIP |
|---|---|---|---|
| 177816 | Kenrick Glennon Seminary | Saint Louis (MO) | 63119-4399 |
Nearby Transit Stations (8)
Rail and bus stations connected to Affton, MO. Select a station to open its map and address details.
| Code | Name | Address | Type |
|---|---|---|---|
| KWD | Kirkwood | 110 West Argonne Dr. | RAIL |
| STL | Gateway Transportation Center | 551 South 16th St. | RAIL |
| ALN | Alton | 3400 College Ave. | RAIL |
| WAH | Washington | 301 West Front St. | RAIL |
| CRV | Carlinville | 128 Alton Rd. | RAIL |
Closest post offices linked to Affton.
| Post Office Name | City | ZIP |
|---|---|---|
| Affton Post Office | Saint Louis (MO) | 63123 |
Other cities in Saint Louis County
Cities, towns, neighborhoods & other populated places in Saint Louis County , MO. (more)
| City Name | Population | Title |
|---|---|---|
| Castle Point | 90,070 | A census-designated place in Jefferson County, Missouri. |
| Florissant | 50,795 | The most populous city in St. |
| Chesterfield | 47,570 | A city in St. |
| Oakville | 36,143 | City in Halton Region, Ontario |
| Wildwood | 35,460 | City in New Jersey |
| University City | 34,165 | Suburb in St. |
| Ballwin | 30,094 | City in Saint Louis County, Missouri, United States |
| Mehlville | 28,380 | Census designated place |
| Kirkwood | 27,866 | Suburb of St. |
| Maryland Heights | 26,895 | City in Missouri, United States |
| Hazelwood | 25,042 | Suburb city of St. |
| Webster Groves | 22,896 | City in Missouri |
| Ferguson | 20,457 | Town in St. |
| Spanish Lake | 19,650 | Census designated place |
| Creve Coeur | 18,624 | City in St. |
| Manchester | 18,081 | City in Missouri |
Distance to Other Cities
Affton distances to largest Missouri cities