© OpenMapTiles © OpenStreetMap
Living in
Affton.
Affton is an unincorporated community in St. Louis County, MO. It has no city government: the county runs it, and the Census counts it as its own place.
About
Life in Affton
Living in Affton means getting a solid middle-class suburban life in the St. Louis metro without breaking the bank—the median home value sits around $212,400 and rent averages $1,015 a month, which is genuinely reasonable for the region. You're looking at an entirely urban area packed into 4.6 square miles, which means density and convenience but also means you're definitely car-dependent—this is suburban St.
Affton at a Glance
Population, income, housing and more
Median Age
42.0 yrs
Poverty Rate
6.6%
Foreign-Born
11.0%
Broadband Internet
92.0%
of households
Population Growth
-0.6%
recent change · Census Bureau
Median household income
Demographics11.0% foreign-born, most often from Bosnia and Herzegovina
Who lives in Affton: race and ethnicity, ages, households, languages and countries of origin
In Affton, the largest foreign-born group is from Bosnia and Herzegovina (39.1%), and 6.2% of residents speak Russian/Slavic at home.
Under 18
17.5%
of residents
65 and Older
19.5%
of residents
Households with Kids
20.6%
anyone under 18
Living Alone
37.4%
of households
Married Couples
42.6%
of households
Avg Household Size
2.19
people
Race & Ethnicity
Hispanic or Latino of any race; other groups are non-Hispanic
Top countries of origin (foreign-born)
Languages Spoken at Home
Cost of Livingrent about average for MO
Rent, home values, and income in Affton
In Affton, home values are 8% below the MO average.
Median rent (per month)
Median home value
Rent Burdened
28.2%
spending 30%+ of income on rent
Severely Rent Burdened
11.9%
spending 50%+
Cost of Living Index
95.1
metro area (BEA) · US avg = 100
Median Property Tax
$2,676
per year, owner-occupied homes
Homeowners
80.8%
of occupied homes are owned
Typical Home Built
1958
median year built
Home Value Trend
Latest: $243,269 (September 2026)
Jobs & Economyunemployment about average for MO
Unemployment in Affton and typical pay across the metro area
Unemployment in St. Louis County, which includes Affton, is close to the MO average.
Unemployment rate
Affton: St. Louis County rate (county-wide) · BLS annual average
Unemployment Rate — 10 Year Trend
St. Louis County (county-wide) · Annual averages
Affton is about 2% of St. Louis County’s population, so county-wide figures may differ from local conditions.
What Affton Residents Do for Work · share of employed residents by industry
City residents, wherever they work
Median Salary by Occupation · metro area
St. Louis, MO-IL metro area
Commute23.5 min avg
How Affton residents get to work, and the nearest airports
In Affton, most residents drive alone to work (77%), and 69% get there in under 30 minutes.
How People Get to Work
Commute Time Distribution
Nearest airports · with airline service
- 14 mi
St. Louis Lambert International Airport (STL)
Medium hub7.5M passengers boarded in 2025
Straight-line distance. Size is the FAA’s hub category, based on passenger traffic: regional airports may have only a few flights a day.
Safetyviolent crime 34% above national average
Crime rates for 2025
Violent crime in the area policed by the St. Louis County Police Department, which covers Affton, runs 34% above the national average.
Violent Crime Rate
439.9
per 100,000 residents
Above average (329 national, 2025)
Property Crime Rate
1,428.5
per 100,000 residents
Below average (1,552 national, 2025)
Policed by St. Louis County Police Department (county-wide rate)
Natural DisastersThunderstorm Wind most common — 24 events in 2025
Natural hazard risk, storms and earthquakes
FEMA National Risk Index
Relatively High
99.3 / 100
Compares expected losses from natural hazards, social vulnerability and community resilience against every US county (higher = more risk).
St. Louis County, county-wide · FEMA NRI December 2025
In St. Louis County, which includes Affton, the most common type is thunderstorm wind, with 24 recorded events in 2025.
Most common events:
Storm events by year
| Year | Events | Top Type | Property Damage |
|---|---|---|---|
| 2025 | 24 | Thunderstorm Wind | $7.8M |
| 2024 | 18 | Tornado | $2.0M |
| 2023 | 22 | Thunderstorm Wind | $30,000 |
| 2022 | 14 | Thunderstorm Wind | $50.6M |
| 2021 | 18 | Thunderstorm Wind | $124,000 |
| 2020 | 11 | Thunderstorm Wind | $50,000 |
| 2019 | 26 | Thunderstorm Wind | $100,000 |
| 2018 | 25 | Thunderstorm Wind | $50,000 |
Property damage is the National Weather Service's estimate filed with each event. “None reported” means the events were logged with $0 damage; “Not estimated” means no estimate was filed. Storms covering several counties aren't counted here, since NOAA doesn't split their damage by county.
1 earthquake of magnitude 2.5+ within 100 miles in the past year
St. Louis County, county-wide
Affton is about 2% of St. Louis County’s population, so county-wide figures may differ from local conditions.
Air Quality55 median AQI — Moderate
Days by air quality category (2025)
Air quality in St. Louis city, MO (the nearest EPA-monitored county, about 7 miles from Affton) is typically moderate — acceptable for most people, but can affect those unusually sensitive to air pollution.
Median AQI
55
Good Days
125
per year
Moderate Days
232
per year
Unhealthy Days
2
per year
Nearest EPA monitor county: St. Louis city, MO (7 mi away)
Climate88°F summers, 28°F winters
30-year climate averages (1991–2020) — monthly temperatures and precipitation
Affton has warm summers (avg high 88°F) and cold winters (avg low 28°F).
Spring (Mar–May)
67°/48°F
avg high / low
Summer (Jun–Aug)
88°/70°F
avg high / low
Fall (Sep–Nov)
69°/50°F
avg high / low
Winter (Dec–Feb)
44°/28°F
avg high / low
Annual Precipitation
43.7"
Annual Snowfall
13.8"
Hot Days/Year
47
days above 90°F
Freeze Days/Year
79
days below 32°F
Rainy Days/Year
111
Average month
Show month-by-month table ↓Hide table ↑
| Month | High | Low | Precip |
|---|---|---|---|
| Jan | 41°F | 25°F | 2.71" |
| Feb | 46°F | 28°F | 2.28" |
| Mar | 56°F | 38°F | 3.61" |
| Apr | 68°F | 48°F | 4.83" |
| May | 77°F | 59°F | 4.90" |
| Jun | 86°F | 67°F | 4.74" |
| Jul | 90°F | 72°F | 4.21" |
| Aug | 89°F | 70°F | 3.75" |
| Sep | 82°F | 62°F | 3.41" |
| Oct | 70°F | 50°F | 3.20" |
| Nov | 56°F | 39°F | 3.69" |
| Dec | 45°F | 30°F | 2.58" |
Healthcare
Hospitals, ratings, and health insurance in Affton
Uninsured
3.1%
of residents
No hospitals inside Affton's limits — nearest hospitals · within 15 miles
Mercy Hospital South
Acute Care Hospitals · ER available · 4 mi away · Saint Louis
St Louis Forensic Treatment Center
Psychiatric · 4.5 mi away · Saint Louis
Ssm Health St Mary's Hospital - St Louis
Acute Care Hospitals · ER available · 5.7 mi away · Saint Louis
Adult Health · vs. the typical US place
Share of adults. Modeled estimates, not counted cases. “US” = the typical US place.
Medicare-certified hospitals only. Doesn’t include clinics, urgent care, or freestanding ERs.
Education14.2:1 student/teacher ratio
Schools and degree attainment in Affton
Affton's student/teacher ratio is 14.2:1 (lower than the national average of 16:1), and 36.6% of adults 25+ hold a bachelor's degree or higher.
Public Schools
3
within city limits
Private Schools
2
within city limits
College Degree Rate
36.6%
adults 25+ with bachelor's or higher
Student/Teacher Ratio
14.2:1
National avg 16:1
Schools located within city limits (2023) — school-level metrics change slowly year to year
Colleges Near Affton (within 15 miles)
Private nonprofit · 4-year · 7,267 students · in-state tuition $57,960 · 76% graduate · median earnings $75,998 (10 yrs after entry)
Maryville University of Saint Louis
11.6 mi awayPrivate nonprofit · 4-year · 5,658 students · in-state tuition $27,166 · 61% graduate · median earnings $67,386 (10 yrs after entry)
Private nonprofit · 4-year · 2,304 students · in-state tuition $32,690 · 55% graduate · median earnings $56,096 (10 yrs after entry)
Private nonprofit · 4-year · 1,488 students · in-state tuition $36,084 · 56% graduate · median earnings $49,360 (10 yrs after entry)
Public · 4-year · 960 students · in-state tuition $7,008 · 29% graduate · median earnings $39,919 (10 yrs after entry)
Barnes-Jewish College Goldfarb School of Nursing
6.9 mi awayPrivate nonprofit · 4-year · 446 students · 93% graduate · median earnings $82,420 (10 yrs after entry)
Degree-granting colleges with 100+ students, placed by campus location (main campuses only — branch campuses are reported under their parent school)
Parks & Recreationclosest: Ulysses S Grant National Historic Site, 1 mi
Nearby national parks, recreation areas and public libraries for Affton
Affton has 6 nearby national parks or recreation areas, closest being Ulysses S Grant National Historic Site (1 mi away).
Nearby National Parks & Recreation Areas
Ulysses S Grant National Historic Site
National Historic Site
1 mi awayGateway Arch National Park
National Park
9 mi awaySte. Geneviève National Historical Park
National Historical Park
42 mi awayNew Philadelphia National Historic Site
National Historic Site
86 mi awayLincoln Home National Historic Site
National Historic Site
93 mi awaySpringfield 1908 Race Riot National Monument
National Monument
94 mi awayCities Near Affton
The closest cities within 60 miles
Planning a move to Affton?
Read our full moving guide — what it's really like to live here.
Affton FAQ
Is Affton, Missouri affordable?⌄
Affton's median rent is $1,015/month, which is below the national average, making it relatively affordable. The median household income is $79,539/year. Median home value is $212,400.
Is Affton, Missouri safe?⌄
Affton is policed by the St. Louis County Police Department, whose violent crime rate across its service area was 440 per 100,000 residents in 2025, which is above the national average of 329/100k that year. Property crime rate is 1429 per 100,000. As with any city, crime rates vary by neighborhood.
What is the job market like in Affton, Missouri?⌄
St. Louis County, which includes Affton, has an unemployment rate of 4.1%, which is close to the national average of 4.3%.
What is the cost of living in Affton, Missouri?⌄
The cost of living in Affton is primarily driven by housing. Median rent is $1,015/month and median household income is $79,539/year. The median home value is $212,400. About 28% of renters spend more than 30% of their income on housing.
How is the commute in Affton, Missouri?⌄
The average commute in Affton is 24 minutes, which is about average compared to the national average of 26 minutes.
Data from the US Census Bureau, BLS, FBI, NOAA, EPA, Zillow Research and other public sources. Where our data comes from