Affton, MO—63123
Real Estate Data & Market Trends
Key Metrics at a Glance
Home Price Trends — Affton, MO
As of Oct '25, the median home price in Affton, MO is $239,000, with a year-over-year change of 1.0%. This indicates that home prices in Affton, MO are flat. According to Zillow, the 1-year price projection is 0.9%, suggesting a relatively flat housing market in the next year.
Cost per Home Type
| Home Type | Median Home Value | YoY % Change |
|---|---|---|
All Homes | $239,000 | 1.0% |
| Single Family | $242,000 | 0.8% |
| Condos | $147,000 | 0.7% |
Cost per Home Size
| Home Size | Median Home Value | YoY % Change |
|---|---|---|
1 Bed | $120,000 | 0.0% |
2 Bed | $209,000 | 2.0% |
3 Bed | $250,000 | 0.4% |
4 Bed | $371,000 | 2.2% |
| 5 Bed | $425,000 | 1.9% |
% of Housing Stock
Rental Trends — Affton, MO
As of July '25, Rentcast reports the average rent in Affton, MO is $1,470, with a year-over-year rent change of -8.1%. Per bedroom, the median rent as of July '25 in Affton, MO is 1-bedrooms: $893, 2-bedrooms: $1,390, 3-bedrooms: $2,040, 4-bedrooms: $2,230. The most common rental property sizes in Affton, MO are 2-bedroom and 1-bedroom, accounting for 46.4% and 33.6% of the rental stock.
| Type | Median Rent | Average Rent |
|---|---|---|
| Average Rent | $1,400 | $1,470 |
| Studio Rent | N/A | N/A |
| 1 Bed Rent | $875 | $893 |
| 2 Bed Rent | $1,400 | $1,390 |
| 3 Bed Rent | $1,900 | $2,040 |
| 4 Bed Rent | $2,050 | $2,230 |
% of Rental Stock
Property Listings — Affton, MO
As of Oct '25, Realtor.com reports that the median days on market for a home in Affton, MO is 25. This is a decrease of -23.0% from last year, suggesting that homes are sitting on the market shorter than last year. The percentage of listed homes with a reduced price is 23.0%, representing a small inventory and little supply pressure on home prices.
| Metric | Zip Code Average | Year over Year % Change |
|---|---|---|
Median Listing Price | $250,000 | -11.0% |
Listing Count | 146 | -14.0% |
| Listings as % of Homes | 0.4% | -14.0% |
Days on Market | 25 | -23.0% |
Demographics — Affton, MO
As of the latest ACS Survey released in 2023, Affton, MO has a population of 49,800, which has decreased by -2.6% over the past 5 years. Affton, MO is a moderately popular place for families, as children make up 18.8% of the population. The area has a moderately educated workforce, with 36.0% of adult residents holding a bachelor’s degree or higher. There are some residents working remotely, with 11.4% reporting working from home.
| Metric | Latest Census | YoY % Change |
|---|---|---|
Population | 49,800 | -2.6% |
% Under 18 | 18.8% | 6.8% |
% Seniors | 19.2% | 1.6% |
% WFH | 11.4% | 185.0% |
% w/ College Degree | 36.0% | 9.4% |
As of the latest ACS Survey released in 2023, Affton, MO is a predominantly white area, with 81.9% of the population identifying as white. The white population has shrunk by 8.0% in the last 5 years. The second most common race or ethnicity in Affton, MO is asian, making up 4.9% of the population. Foreign-born residents account for 13.3% of the population in Affton, MO, and this percentage has increased by 22.0% as of the ACS Survey 5 years prior, suggesting more immigrants are calling the area home.
Race and Ethnicity
| Metric | Latest Census | 5-Year % Change |
|---|---|---|
% White | 81.9% | -8.0% |
% Black | 3.6% | 44.0% |
% Hispanic | 4.7% | 104.3% |
% Asian | 4.9% | 36.1% |
% Foreign Born | 13.3% | 22.0% |
Mortgage and Risk — Affton, MO
According to HUD data as of 2023, there were 1080 mortgage originations in Affton, MO, of which 85.0% of loans were conventional mortgages. The average loan-to-value was 70.0%, with 35.0% above 90% LTV (very high). This implies large mortgage risk in Affton, MO. Investor activity is low, as 3.0% of loans were by investors. 10.0% of loans were cash-out refinances, suggesting few homeowners are tapping equity.
Mortgages
| Metric | Zip Code Average |
|---|---|
Total Loan Originations | 1,080 |
% Conventional Loans | 85.0% |
% Government Loans | 15.0% |
% Investor Loans | 3.0% |
% Second Loans | 1.0% |
% Cash Out Refinance | 10.0% |
Loan Activity
Rentals and Section 8 — Affton, MO
As of 2024, the percent of homes in Affton, MO under the Section 8 program is 2.2%. This is considered low, suggesting that the neighborhood is sparsely composed of Section 8 homes. Section 8 opportunity is good when HUD pays more than market rent. 1-bedroom units appear to be good home sizes to consider for Section 8 housing in Affton, MO, because HUD payments exceed market rent, while 2-bedroom and 3-bedroom and 4-bedroom units do not.
Section 8 Market Size
Total Units under HUD | 201 |
Total Units Section 8 | 126 |
% Rentals under Section 8 | 2.2% |
% Occupied Section 8 | 85.1% |
Section 8 Opportunity
| Home Size | HUD Premium | Market Rent | Max HUD Rent |
|---|---|---|---|
| 1 Bedroom | $85 | $875 | $960 |
| 2 Bedroom | -$220 | $1,400 | $1,180 |
| 3 Bedroom | -$380 | $1,900 | $1,520 |
| 4 Bedroom | -$300 | $2,050 | $1,750 |
Affordability — Affton, MO
Home Price to Income Ratio
| Metric | Zip Code Average |
|---|---|
| Home Price to Income Ratio | 2.9 |
| Median Home Price | $239,000 |
| Median Household Income | $74,200 |