Affton, MO
Looking to move to Affton, MO? You’ve come to the right place. Livability helps people find their perfect places to live, and we’ve got everything you need to know to decide if moving to Affton, MO is right for you.
Let’s start with the basics: Affton, MO has a population of 19541. What about cost of living in Affton, MO? The median income in Affton, MO is $76,542 and the median home value is $198,782.
Read on to learn more about Affton, MO, and if you’d like some tips and advice for making your big move, check out our Make Your Move page, where you’ll find all kinds of stories and insights including How to Start Over in a New City, Tips for Getting to Know a New City Before You Move and so much more.
Weather in Affton, MO
Average Temperatures
66 high / 46 low
Average Annual Rainfall
43 in
Average Annual Snowfall
14 in
Quick Facts about Affton, Missouri
- Median Home Value
- $198,782
- Median Property Tax
- $2,605
- Total Population
- 19,541
- Average Commute
- 21 min
- Median Household Income
- $76,542
- Median Monthly Rent
- $879
Map of Affton, MO
Data used on Livability.com is provided from the most recent release (November 2025) by Applied Geographic Solutions (AGS). Our LivScore is calculated in partnership with AGS. Sales tax sources: Sales Tax Clearinghouse, Tax Foundation, and State Revenue Departments. Local rates are population-weighted to account for municipal variations.
