At A Glance

Population (2020): 20,417

Zip Code(s): 63123

Area Code: 314

Average Home Sale Price: $199,900


Affton, Missouri, is a quiet, family-friendly suburb just minutes from the excitement of the city. The town has easy access to I-44, making it a great place to commute to work. There are also several parks and golf courses in the area for residents to enjoy, as well as several shopping options. Most of the homes in Affton are single-family homes, but there are also a few duplexes and triplex homes.


Affton, Missouri is a small census-designated area in St. Louis County. It is situated to the southwest just 15 minutes from the Gateway Arch and Downtown St. Louis. In addition to being close to major attractions, Affton is also close to many educational facilities, including Washington University, Chesterfield Academy, and the Missouri Botanical Garden. The area is also home to the Affton Cider Mill, which produces hard ciders and apple-based soft drinks.


The Affton area is serviced by Affton School District and includes schools such as: 

  • Affton Early Childhood
  • Mesnier Primary School
  • Gotsch Intermediate
  • Rogers Middle School
  • Affton High School
  • Bayless Elementary School
  • Bayless High School


The crime rate in Affton is very low, making it a very safe place to live. The most common type of crime is property crime, which includes things like car break-ins and theft. The average Affton resident will not feel unsafe walking at any time of day or night. The police department is small, but well-trained and equipped to handle any situation.


Though Affton may not have the large number other local areas have, it’s still home to some really nice family parks. Be sure to check out: 

  • County Ohlendorf Park
  • Mathilda Welmering Park
  • St. George Park
  • Officer Blake C. Snyder Park
  • Whitecliff Park
  • Bohrer County Park
  • Willmore Park

Notable People

  • Jack Dorsey grew up in Affton and attended Bishop DuBourg
  • John Goodman was born and raised in Affton and is a graduate of Affton High School.
  • Markus Goldman is an NFL player for the Arizona Cardinals and also graduated from Affton High School.


Is Affton a good place to live?

Affton is a great place to live. The crime rate is very low, making it a very safe place to raise a family. The schools are excellent, and the area is close to many major attractions, making it easy for residents to get to work and have fun. Most of the homes in Affton are single-family, which is a great choice for those who want a small, private backyard. 

How big is Affton, Missouri?

Affton, Missouri is 69,715 square miles. 

Who is the mayor of Affton?

Affton, MO does not have a mayor since it’s a census-designated area. The resident’s representation comes from St. Louis’ City Council. 

When was Affton founded?

This area was first settled in 1872 by Johann Aff who opened a general store. Aside from owning the store and operating a truck garden, he was also the region’s first postmaster. For mailing purposes, the area was first simply called Aff’s town until it was later changed to Affton. 

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