Affton, MO vs Arnold, MO

Side-by-side comparison from the latest government data.

MetricAffton, MOArnold, MO
Population19,05220,956
Median Household Income$79,539$78,370
Median Rent$1,015/mo$1,112/mo
Median Home Value$212,400$220,000
Cost of Living (US = 100)9595
Renters Paying 30%+ of Income28.2%32.4%
Poverty Rate6.6%8.2%
Unemployment Rate4.1% (county)3.7% (county)
Violent Crime Rate /100k440*76
Property Crime Rate /100k1,429*831
Median AQI—42
Good AQI Days /yr—268
Summer Highs88°F87°F
Winter Lows28°F25°F
Snowfall14 in/yr10 in/yr
Avg Commute23.5 min27.2 min
Hospitals——
Avg Hospital Rating——
Students per Teacher14.213.9
College Degree Rate36.6%25.4%
Foreign-Born %11%5.3%
Population Growth (2020–2025)-0.6%+0.5%

Green = clearly better (more than 5% apart). Population, growth, weather, hospital count and foreign-born share aren’t scored.
* Rate of the agency that polices Affton (the city has no police department of its own), so it isn’t scored.