Arnold, MO vs O'Fallon, IL
Side-by-side comparison of housing, income, commute, safety, and quality of life.
Score Snapshot
No universal winner
Scores summarize the published model. Use the objective metric differences below and your own priorities to choose.
Arnold
70.7
#1066 nationally
O'Fallon leads in crime level (5.3 vs 11.3). O'Fallon leads in median household income ($102,560 vs $72,317). O'Fallon leads in walk score (25 vs 21).
Metric-by-Metric Breakdown
| Metric | Arnold, MO | O'Fallon, IL |
|---|---|---|
| Population | 21,059 | 31,968 |
| Typical Home Value (ZHVI) | $277,441 | $0 |
| Median Household Income | $72,317 | $102,560 |
| Average Commute | 29 min | 26 min |
| Walk Score | 21 | 25 |
| Crime Level | 11.3 | 5.3 |
| School Rating | N/A | N/A |
| Cost of Living Index | 95 | 106 |
| Political lean County 2024 presidential margin — context only, not scored | R+36.7 | D+7.9 |
C-
70.7 Score
Arnold, MO
Small Missouri city with local appeal
Median Home
$277,441
Population
21,059
Crime
Moderate-High
Walk Score
21
Midwest
View Arnold, MO →
—
Score
O'Fallon, IL
Small Illinois city with local appeal
Population
31,968
Crime
Moderate-Low
Walk Score
25
Median Income
$102,560
Midwest
View O'Fallon, IL →
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