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Thursday, August 6, 2026

O'Fallon vs St. Peters

O'Fallon, MO compared with St. Peters, MO · 6 miles apart

O'Fallon has 96,101 residents to St. Peters’s 61,479. O'Fallon comes out ahead on median household income, homeownership, bachelor's degree +. St. Peters does better on median rent, average commute, unemployment.

O'Fallon, MO St. Peters, MO
Population 96,101 61,479
Density (per sq mi) 3,101 2,728
Median household income $110,443 $91,637
Median home value $326,200 $269,900
Median rent $1,443 $1,321
Homeownership 81% 79%
Average commute 25.5 min 22.7 min
Median age 38.4 41
Bachelor's degree + 43.3% 39.2%
Poverty rate 5.4% 5.6%
Unemployment 2.7% 2.3%
Price to income 2.9×

Highlighted where one city is clearly better on that measure. Population, density, home value and median age carry no highlight — a higher number there is good or bad depending on what you want.

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