What is the cost of living in Affton, MO?
According to the most recent data on the cost of living, Affton has an overall cost of living index of 92, which is 0.9x lower than the national index of 100.
Compared to Missouri, Affton has a cost of living index that's 1.0x higher than Missouri's index of 90.
The standard of living in Affton ranks as #69 most affordable out of the 144 places we measured in Missouri. By definition, that implies Affton ranks as the #75 most expensive place in the Show Me State.
For more reading on life in Affton, check out:
Affton Cost Of Living Vs. Missouri
Six factors go into calculating the cost of living index in Affton. Here is how it fares on each of the criteria:
The Services index in Affton is 95.
The Groceries index in Affton is 99.
The Health index in Affton is 90.
The Housing index in Affton is 99.
The Transportation index in Affton is 101.
The Utilities index in Affton is 92.
| Living Expense | Affton | Missouri | National Average |
|---|---|---|---|
| Overall | 92 | 90 | 100 |
| Services | 95 | 97 | 100 |
| Groceries | 99 | 98 | 100 |
| Health | 90 | 76 | 100 |
| Housing | 99 | 95 | 100 |
| Transportation | 101 | 94 | 100 |
| Utilities | 92 | 96 | 100 |
Affton Cost Of Living Compared To Missouri Averages
Index where 100 = national average. Source: cost-of-living index 2026.
For more reading on cost of living around Missouri, check out:
Protect your home budget Compare home warranties in Affton Get matched →Source: Cost-of-living index 2026, normalized to US average = 100
Affton, MO Housing Cost Breakdown
Housing swings affordability the most between places in Missouri, so we broke down housing costs into more detail. Home and income data comes from the most recent US Census ACS 2020-2024. The key points are:
The Median Home Value in Affton is $240,347.
The Median Rent in Affton is $1,015.
The Median Income in Affton is $79,539.
The Home Value To Income in Affton is 3.0x.
The Rent To Monthly Income in Affton is 0.15x.
Affton, MO Costs By Category
Detailed Affton Services costs vs. Missouri
Detailed Affton Groceries costs vs. Missouri
Detailed Affton Health costs vs. Missouri
Detailed Affton Transportation costs vs. Missouri
Affton SnackAbility
Cost Of Living In Cities Around Affton
The cost of living varies in the cities and towns around Affton. Here's a quick look at the cost of living in the most populous nearby places:
Chesterfield, MO has a cost of living index of 121, 1.3x Affton.
Wildwood, MO has a cost of living index of 122, 1.3x Affton.
Ballwin, MO has a cost of living index of 109, 1.2x Affton.
| City | Population | Cost Of Living | Vs. Affton |
|---|---|---|---|
| Chesterfield, MO | 49,574 | 121 | 1.3x |
| Wildwood, MO | 35,133 | 122 | 1.3x |
| Ballwin, MO | 31,279 | 109 | 1.2x |
| Collinsville, IL | 24,031 | 91 | 1.0x |
| Fairview Heights, IL | 16,745 | 95 | 1.0x |
| Lemay, MO | 16,228 | 86 | 0.9x |
| Swansea, IL | 14,710 | 100 | 1.1x |
| Crestwood, MO | 12,295 | 103 | 1.1x |
| Town and Country, MO | 11,607 | 168 | 1.8x |
| Waterloo, IL | 11,129 | 99 | 1.1x |
