HomeMissouriSt. Louis CountyAffton
Affton, Missouri: commercial real estate data.
Affton is a Census CDP of 19,052 people across 4.57 square miles of land, in St. Louis County. Median household income is $79,539, 80.8 percent of occupied homes are owned, and the SBA record carries 1 7(a) approvals to borrowers here worth $1.9 m since FY2020.
Underlined figures are computed by MMCG Analytics, not published by the agency.
Affton
What Affton is
- Census place typeCDP
- Land area4.57 sq mi
- Water area0 sq mi
- Population per square mile of land4,169
- County holding the largest share of its areaSt. Louis County, 100.0 percent
US Census Bureau, cartographic boundary file, places, 2024 vintage. US Census Bureau, American Community Survey 5-Year Estimates, place level, 2020-2024 5-year.
Affton
How many people live in Affton
- Population19,052
- Median age42.0
- Population under 183,334
- Share under 1817.5 percent
- Population 65 and over3,716
- Share 65 and over19.5 percent
- Households8,695
- Family households4,950
- Share of households that are families56.9 percent
US Census Bureau, American Community Survey 5-Year Estimates, place level, 2020-2024 5-year.
Affton
Income and work in Affton
- Median household income$79,539
- Per capita income$47,243
- Civilian labor force11,528
- Employed11,360
- Unemployed168 plus or minus 96
- Unemployment rate1.5 percent plus or minus 0.8
- Adults 25 and over14,255
- Adults 25 and over with a high school diploma or higher91.9 percent
- Adults 25 and over with a bachelor degree or higher36.6 percent
- Adults 25 and over with a graduate degree15.4 percent
US Census Bureau, American Community Survey 5-Year Estimates, place level, 2020-2024 5-year.
Affton
Housing in Affton
- Housing units9,092
- Occupied units8,695
- Vacant units397 plus or minus 209
- Vacancy rate4.4 percent plus or minus 2.3
- Owner occupied7,029
- Renter occupied1,666
- Ownership rate80.8 percent
- Median owner-occupied home value$212,400
- Median gross rent, monthly$1,015
- Annual rent as a share of median income15.3 percent
- Single family units7,707
- Share single family84.8 percent
- Units in buildings of two or more1,336
- Share in buildings of two or more14.7 percent
- Mobile homes49 plus or minus 50
- Median year structure built1958
US Census Bureau, American Community Survey 5-Year Estimates, place level, 2020-2024 5-year.
Affton
How Affton gets to work
- Workers 16 and over who commute9,789
- Commuting under 15 minutes2,282
- Share commuting under 15 minutes23.3 percent
- Commuting 30 minutes or more3,065
- Share commuting 30 minutes or more31.3 percent
- Drove alone77.1 percent
- Carpooled7.8 percent plus or minus 3.2
- Public transport0.8 percent plus or minus 0.8
- Walked0.7 percent plus or minus 0.5
- Worked from home11.6 percent plus or minus 2.4
US Census Bureau, American Community Survey 5-Year Estimates, place level, 2020-2024 5-year.
Affton
SBA loans in Affton (7(a))
- Approvals1
- Gross approval$1,915,400
- Average approval$1,915,400
- Median approval$1,915,400
- Largest approval$1,915,400
- Jobs supported198
- Jobs per approval198.0
- Loans with a final outcome0
- Paid in full0
- Charged off0
- Median term120 months
- Share on real estate terms of 20 years or more0.0 percent
- Share to franchises0.0 percent
- Distinct lenders1
- Distinct industries by NAICS1
Counted by borrower city: approvals to borrowers whose address is in Affton, in any county, FY2020 to FY2026. Only 0 loans have reached a final outcome, fewer than the 30 a charge-off rate needs, so no rate is published.
US Small Business Administration, 7(a) FOIA release, FY2020 to FY2026 year to date, as of 2026-06-30.
St. Louis County, not Affton
St. Louis County context, not Affton figures
- Establishments in St. Louis County29,717
- Covered employment, St. Louis County596,676
- Average annual pay, St. Louis County$75,926
- Housing units permitted, St. Louis County1,193
Every figure in this section is published for St. Louis County as a whole and is not a measurement of Affton.
All St. Louis County figures →
US Census Bureau, County Business Patterns, 2023. US Bureau of Labor Statistics, Quarterly Census of Employment and Wages, 2024 annual averages. US Census Bureau, Building Permits Survey, 2024 annual.
Coverage
What this page does not hold.
Parcel detail, zoning and the flood zone at an address are not on this page; they resolve at the address in the platform. How this page was built →
Common questions
Affton questions, answered from the record.
How many people live in Affton, Missouri?
19,052, in 8,695 households. Affton CDP covers 4.57 square miles of land, which is 4,169 people per square mile. Source: US Census Bureau, American Community Survey 5-Year Estimates, place level, 2020-2024 5-year.
What county is Affton in?
St. Louis County, which holds 100.0 percent of the place by area. Source: US Census Bureau, cartographic boundary file, places, 2024 vintage.
What is the median household income in Affton?
$79,539. The median owner-occupied home is valued at $212,400. Median gross rent is $1,015 per month. Source: US Census Bureau, American Community Survey 5-Year Estimates, place level, 2020-2024 5-year.
How much SBA lending goes to Affton businesses?
1 7(a) approvals totaling $1.9 m since FY2020, across 1 lenders, median approval $1,915,400. These count approvals to borrowers whose address is in Affton, not projects sited inside the place boundary, and they are approvals recorded in the release rather than loans disbursed.
Do SBA loans to Affton borrowers get paid back?
No rate is published for Affton. Only 0 loans have reached a final outcome, fewer than the 30 a charge-off rate needs, so no rate is published. The counts are shown instead.
Are the county figures on this page Affton figures?
No, and they are labeled so. County Business Patterns, QCEW, the Building Permits Survey, BEA product and IRS migration are published for St. Louis County as a whole and there is no place level equivalent. They appear in one clearly marked section as context and are never presented as measurements of Affton.
Is zoning published for Affton?
No. Nothing on this page presents parcel level zoning.