O'Fallon, Missouri

Missouri community balancing growth and livability

Midwest

WhereAtHome Score

75.6

C

out of 100

Overview

O'Fallon is a Missouri city with a population of approximately 94,074,. Median household income is $104,863.

Key Highlights

  • Population of approximately 94,074 (2023 Census estimate)
  • Median household income of $104,863 (Census ACS)
  • Average commute time of 26.1 minutes

Key Metrics

Population 2023

94,074

Source: Census ACS

$381,302

Source: Zillow ZHVI

$104,863

Source: Census ACS

26.1 min

Source: Census ACS

Walk Score 2026

22

Source: Walk Score

105 (100 = U.S. avg)

Source: AreaVibes / BLS

2024 Presidential Election

St. Charles County (county-level results)

41%
58%
Democrat 92,226
Republican 130,588
Leans R+17.0

Source: County-level results from MIT Election Data + Science Lab. Learn more

Score Breakdown

6 of 6 score factors available. Missing factors are excluded and available weights are rescaled.

Housing Affordability 53.9/100

Median home value relative to national average (Weight: 20%)

Income vs Housing 75.7/100

How affordable housing is relative to local incomes (Weight: 20%)

Commute Time 54.5/100

Average commute time compared to national average (Weight: 15%)

Crime 80/100

Overall crime levels based on FBI crime statistics (Weight: 20%)

Walkability 22/100

Walk Score — ease of daily errands on foot (Weight: 15%)

Purchasing Power 58.9/100

Median income relative to national average, adjusted for cost of living (Weight: 10%)

WhereAtHome Score 75.6

Location

O'Fallon, MO (38.7903, -90.7033)
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Last Updated: 2026-07-01

Data sourced from U.S. Census Bureau, Zillow, FBI Crime Data Explorer, Walk Score, and Niche.