Affton, Missouri.
Typical home $243,269 (+2.9% in a year), asking rent $1,614 . St. Louis, MO-IL metro.
to buy the typical home at today's mortgage rate — +$683 (+115%) since Jan 2020.
- 1 year
- Up $6,952 +3%
- $236,318$243,269 since Sep 2025
- 5 years
- Up $50,317 +26%
- $192,952$243,269 since Sep 2021
Monthly payment to buy the typical home
Home value × that month's 30-year mortgage rate, 20% down, principal and interest. This is the line households feel: prices and rates compound each other.
- Affton$1,277
- Missouri$1,393
- United States$1,922
At the last five years' pace, a typical home here doubles in price every 15 years.
Typical home values in Affton, MO rose 2.9% over the past year — faster than the nation's +1.2%.
Living in Affton, St. Louis County, Missouri
Affton, in St. Louis County, had 20,417 people in the 2020 census. Half its households earn more than $79,539 a year and half less, against $82,936 across St. Louis County; 7% of its people live below the poverty line. 81% of its homes are lived in by their owners and 19% are rented. Unemployment in St. Louis County was 4.2% in August 2026, and the county had 1.2% fewer jobs in 2025 than the year before. The most residents work in schools and health care, then professional services.
Written by AI Claude Sonnet 5.5 wrote this on 23 October 2026 from the figures here, a list of nearby places and what it knows. It can be wrong or out of date.
What it’s like
The place. Affton is a community in St. Louis County where most homes are lived in by their owners, and the share of owners is high for the area. Residents tend to be somewhat older than in many towns, and household incomes sit a little below the county's, with only a small share of people living below the poverty line. Winters are cold and summers hot, with rain and melted snow spread through the year.
Work. Many residents work in schools, hospitals and social care, followed by professional and business services, manufacturing and retail. Among the largest workplaces in Affton are Affton Schools, Irca Group, a maker of chocolate and confectionery, and Schnuck Markets. Across St. Louis County, jobs have slipped slightly from a year earlier, and a typical commute is a fairly ordinary one for a metropolitan area.
Things to do. Forest Park, a large city park with gardens, is a short drive away, as are the Saint Louis Zoo and the Saint Louis Art Museum. The Missouri Botanical Garden is also a short drive away, and Gateway Arch National Park is a short drive away too. For a longer day out, Cahokia, an archaeological site, is a longer drive away.
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- 8,695households
- 37%of adults have a degree
- 7%below the poverty line
- 24 mintypical commute
- 12%work from home
What residents work in
Employed residents by industry, from the Census survey. St. Louis County had 589,803 jobs in 2025, 1.2% fewer than the year before (Bureau of Labor Statistics).
Weather through the year
Coldest in January, with highs near 41° and lows near 25°; warmest in July, with highs near 90° and lows near 72°. About 44 inches of rain and melted snow a year.
Average daily high and low, 1991–2020, at the St. Louis Sci Ctr weather station, 6 miles away (NOAA).
Largest workplaces in Affton
- Affton 101 SchoolsSchool district339FTE
- Irca GroupChocolate, confectionery, made from cacao beans190
- Essex Industries INC andManufacturing143
- First Student111
- Schnuck MarketsSupermarket groc not convenience store110
- AfftonMail and parcel delivery83
- Southview Assisted Living & Memory CareAssisted-living facilities with on-site nursing facilities55
- Multi-Color Corporation - St. LouisPrint shops, lithographic51
Staff on average in 2025, as each workplace reported it to OSHA with its injury records: 12 workplaces with 20 or more staff, 899 people in all. School districts come from the Common Core of Data (NCES, 2023–24); FTE marks full-time equivalent staff. Not listed: many offices and banks, which need not report to OSHA; military bases, whose staff OPM withholds; and, in about half the states, city and county governments.
Natural hazards
- Heat wavesVery high
- HailRelatively high
- Cold wavesRelatively high
- EarthquakesRelatively moderate
- Lightningrelatively high in parts of AfftonRelatively moderate
- Winter weatherRelatively moderate
FEMA’s National Risk Index (December 2025) rates the risk each natural hazard poses to the people, buildings and farms in Affton’s census tracts, against the rest of the country; all of them together, relatively moderate. It is meant for planning, not a substitute for a local risk assessment or a flood map: FEMA’s index.
From the U.S. Census Bureau’s 2020 census and its American Community Survey (2020–2024 five-year estimates), and the Bureau of Labor Statistics. A survey, so each figure has a margin of error, and figures it is not sure of are left out. More on St. Louis County and the St. Louis, MO-IL metro.
Affton home values
Zillow measures a city over its municipal boundary. Against the state and national figures, mid-tier homes, smoothed and seasonally adjusted.
- Affton$243,269
- Missouri$265,387
- United States$366,157
Sellers are cutting prices on about 1 in 4 Affton listings, and the typical home goes pending in 7 days — the market is roughly in balance.
When this market ran hot
Each cell is that month's year-on-year home-value growth. Read left to right, top row is the latest year — the 2021–22 band is the boom.
Market heat, inside the city limits
Share of listings with a price cut
The early-warning dial: sellers cut when buyers stop reaching. Rising cuts cool a market months before prices notice.
- Affton27.34%
- United States26.90%
Days to pending
How long the typical listing takes to go under contract.
- Affton7
- United States27
Homes for sale
Active for-sale inventory. More supply hands power to buyers.
- Affton46
New listings per month
Sellers arriving at the market.
- Affton26
Median sale price
What buyers actually paid — closed sales, not asking prices.
- Affton$257,304
- United States$371,407
Sale-to-list ratio
Above 100%, homes sell over asking; below, buyers negotiate wins.
- Affton104.50%
Zip codes with a Affton address
A different geography, not a breakdown. The figure above covers the municipality; these zips cover everywhere the Post Office calls Affton — often including townships beyond the city limits. Both come straight from Zillow, and they are not expected to average out.