Where is Affton, Missouri, USA?

Written and Fact-checked by | Updated On: April 28, 2026 | 14:51 ET

Where is Affton Located? - Affton is a city located in the St. Louis County of Missouri, United States. Affton lies between 43.7022451 Degrees North latitudes and 72.2895526 Degrees West longitudes.

Location Map of Affton, Missouri

Where is Affton, Missouri

Affton Map, Missouri, USA

Where is Affton?: The Google Map showing the location of Affton in the U.S. state of Missouri.

Where is Affton Located?

Affton is a city located in the St. Louis County of Missouri, United States. Affton lies between 43.7022451 Degrees North latitudes and 72.2895526 Degrees West longitudes. According to 2020 U.S.census, the population of Affton city is 20417 people and the city has a total area of 4.57 sq mi. The city has numerous parks and recreational facilities.

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Affton, Missouri Quick Facts

FactDetails
CommunityAffton
CountySt. Louis County
StateMissouri
CountryUnited States
RegionGreater St. Louis
Latitude38.5509° N
Longitude90.3246° W
Elevation594 ft (181 m)
Land Area4.6 sq mi
Water Area0.0 sq mi
Total Area4.6 sq mi
Population (Census 2020)20,417
Population DensityApproximately 4,438 per sq mi
ZIP Codes63123
Area Code314
Time Zone StandardCentral Time (UTC-6)
Time Zone DaylightCentral Daylight Time (UTC-5)
CurrencyUnited States Dollar (USD)
GNIS Feature ID0754387

Nearby Cities and Communities to Affton, Missouri

  • Lakeshire, Missouri - 1 mi South
  • Marlborough, Missouri - 2 mi West
  • Shrewsbury, Missouri - 3 mi North
  • Crestwood, Missouri - 4 mi Southwest
  • Webster Groves, Missouri - 5 mi Northwest
  • Kirkwood, Missouri - 7 mi West
  • Sunset Hills, Missouri - 7 mi Southwest
  • St. Louis, Missouri - 9 mi Northeast
  • Clayton, Missouri - 10 mi North
  • Belleville, Illinois - 18 mi East

Affton, Missouri Climate and Weather Overview

MonthAvg High (°F)Avg Low (°F)Avg Rainfall (in)
January40232.3
April66464.2
July89703.8
October69483.0
Annual664741.0
Climate AttributeDetails
Climate Classification (Köppen)Cfa - Humid Subtropical
Annual RainfallApproximately 41 inches
Annual Sunshine DaysApproximately 205 days
Severe Weather RiskModerate Thunderstorm and Tornado Risk
Average SnowfallApproximately 16 inches annually

Driving Distances from Affton, Missouri

CityStateDistance (mi)Approx. Drive Time
LakeshireMissouri15 min
MarlboroughMissouri25 min
ShrewsburyMissouri310 min
CrestwoodMissouri410 min
Webster GrovesMissouri512 min
KirkwoodMissouri715 min
Sunset HillsMissouri715 min
St. LouisMissouri920 min
ClaytonMissouri1020 min
BellevilleIllinois1830 min

Transportation and Connectivity in Affton, Missouri

Nearest AirportSt. Louis Lambert International Airport
IATA CodeSTL
Major HighwaysInterstate 55, Interstate 270, Missouri Route 30
Rail ServiceMetroLink Stations Nearby
Public TransitMetro Transit Bus Service
  • Interstate 55 provides direct access to downtown St. Louis and southern Missouri.
  • Interstate 270 connects Affton with the St. Louis metropolitan beltway.
  • Missouri Route 30 is a major commercial corridor through the community.
  • Metro Transit buses provide public transportation throughout St. Louis County.
  • St. Louis Lambert International Airport is approximately 18 miles north of Affton.

Key Landmarks and Places to Visit in Affton, Missouri

Landmark NameType
Grant's FarmHistoric Attraction
Laumeier Sculpture ParkSculpture Park
Tower Tee Golf and RecreationRecreation Center
Whitecliff ParkCommunity Park
Affton Community CenterCommunity Facility
St. Louis Carousel at Faust ParkFamily Attraction
Missouri Civil War MuseumMuseum
Clydesdale ParkPark
Magic HouseChildren's Museum
Forest ParkRegional Park

Colleges and Universities Near Affton, Missouri

Institution NameTypeDistanceNotable For
Webster UniversityPrivate University5 miBusiness and international studies
St. Louis Community College - MeramecCommunity College6 miTransfer and workforce programs
Saint Louis UniversityPrivate University10 miResearch and health sciences
Washington University in St. LouisPrivate University11 miResearch and medicine
University of Missouri-St. LouisPublic University14 miHigher education and research

Waterbodies in and Near Affton, Missouri

River des Peres, Mississippi River, Meramec River, Deer Creek, Gravois Creek, Creve Coeur Lake, Jefferson Lake, Simpson Lake, Suson Park Lake, George Winter Park Lake

Golf Courses in and Near Affton, Missouri

Tower Tee Golf and Recreation, Sunset Country Club, Tapawingo National Golf Club, Riverside Golf Club, Forest Park Golf Course, Greenbriar Hills Country Club, Gateway National Golf Links, Crescent Farms Golf Club

Affton, Missouri - Key Historical Facts

  • Affton developed during the nineteenth century as a rural settlement southwest of St. Louis.
  • The community's name is believed to have originated from the River Afton in Scotland.
  • Growth accelerated after World War II as suburban development expanded across St. Louis County.
  • Affton became known for its residential neighborhoods, schools and community parks.
  • The area benefits from its proximity to major attractions such as Grant's Farm and Forest Park.
  • Today, Affton is a well-established suburban community within the Greater St. Louis metropolitan area.

References

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