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Affton, MO

Complete financial data dashboard — cost of living, mortgage calculator, salary comparisons, and tax details.Source: U.S. Census Bureau ACS 2023 · FRED

Cost Index
54
Very Affordable
Median Home Value
$200,300
National: $426,735
Median Rent
$978/mo
National: $1,527/mo
Household Income
$77,337
National: $84,532
Population
20,035
Purchasing Power
169
100 = national baseline

Cost of Living Breakdown

Housing Cost Index
47 / 100
100 = national average
Rent Index
64 / 100
Overall Index
54
Very Affordable

Affton Mortgage Calculator

Pre-filled with the local median home value of $200,300 and Missouri's property tax rate of 0.97%.

Salary & Purchasing Power

Median household income is $77,337 9% below the national average.

What $77,337 in Affton Gets You Elsewhere

CityEquivalent SalaryDifference
New York, NY$216,257+180%
Los Angeles, CA$243,468+215%
El Paso, TX$74,473-4%
Detroit, MI$57,287-26%

Property Tax in Affton, MO

Est. Annual Property Tax
$1,943
Monthly Impact
$162
Added to your mortgage
Effective Rate
0.97%
National avg: ~1.00%

Missouri Tax Overview

Tax TypeMissouriNational Avg
Property Tax Rate0.97%1.00%
Top Income Tax Rate4.8%~5.0%
State Sales Tax8.29%~5.0%

Compare Affton to Another City

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Cost of Living Comparison

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Affton, MO
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Cost Index Comparison (100 = National Avg)

Housing CostsNational Avg: 100
Affton, MO: 47
Rent Prices
64
LC
Reviewed by LivabilityCalc Research Team
Financial Data Analysts · Census & Economic Data Specialists
📊 Data Sources & Methodology
  • Housing & Demographics: U.S. Census Bureau, American Community Survey (ACS) 2023 1-Year Estimates
  • Mortgage Rates: Freddie Mac Primary Mortgage Market Survey via Federal Reserve Economic Data (FRED)
  • Tax Rates: Tax Foundation State & Local Tax Data, 2024
  • Cost of Living Index: Calculated using Census housing + rental data vs. national median (see methodology)
Last data update: March 2026 · Mortgage rates updated weekly · Page auto-refreshes every 24 hours via ISR