Head-to-Head · City Comparison
Longmont, CO
VS
O'Fallon, MO
🏆 O'Fallon leads 14 of 23 categories
Longmont
Colorado
9
wins
Cost of Living Index
103.4⚠ High
Median Household Income
$89,720
Violent Crime Index
124⚠ High
Population
98,282 ✓ Larger
O'Fallon
Missouri
14
wins
Cost of Living Index
96.3 ✓ Cheaper
Median Household Income
$104,863 ✓ Higher
Violent Crime Index
16 ✓ Safer
Population
91,825
Pros & Cons
Auto-generated from official data — head-to-head differences and gaps vs the national average.
Longmont, CO
Pros
More college-educated — 46.0% hold a bachelor's or higher
Milder winters — January highs near 45°F vs 39°F
Cons
Pricier housing — median home is $488,100
Violent crime (469.3/100k) is above the U.S. average of 380
Higher rents — median is $1,689/mo
Median income trails O'Fallon by $15,143/yr
O'Fallon, MO
Pros
Homes cost $205k less ($283,600 vs $488,100)
87% less violent crime than Longmont
Rent averages $378/mo less ($1,311 vs $1,689)
Violent crime is well below the national average (59.0 vs 380/100k)
Households earn $15,143 more per year on average
Stronger job market — unemployment is 1.0 pts lower (3.1%)
Cons
Nothing stands out — a close match here.
Key Differences at a Glance
Longmont
Summer Heat
3.3°F warmer
July avg high 90.8°F vs 87.5°F
O'Fallon
Cost of Living
7% cheaper
COL index 96.3 vs 103.4 (100 = US avg)
O'Fallon
Median Income
$15,143
$104,863 vs $89,720/yr
O'Fallon
Violent Crime
87% lower
59.0 vs 469.3 per 100k
O'Fallon
Median Home Value
$205k less
$283,600 vs $488,100
O'Fallon
Unemployment
1.0 pp lower
3.1% vs 4.1% unemployment
Full Data Comparison
| Metric | Longmont, CO | O'Fallon, MO |
|---|---|---|
| 💰 Cost of Living | ||
| Cost of Living Index National avg = 100 · lower = cheaper | 103.4⚠ High | 96.3 ✓ Cheaper |
| Median Home Value | $488,100⚠ High | $283,600 ✓ Lower |
| Median Monthly Rent | $1,689⚠ High | $1,311 ✓ Lower |
| 📈 Income & Economy | ||
| Median Household Income | $89,720 | $104,863 ✓ Higher |
| Unemployment Rate | 4.1%⚠ High | 3.1% ✓ Lower |
| Avg Commute Minutes each way | 25.4 min ✓ Shorter | 26.1 min |
| Work From Home % | 17.2% ✓ Higher | 14.0% |
| 🔒 Safety | ||
| Crime Index 100 = national avg · lower = safer · 60% violent / 40% property | 124⚠ High | 18 ✓ Safer |
| Violent Crime Index 100 = national avg · lower = safer | 124⚠ High | 16 ✓ Safer |
| Property Crime Index 100 = national avg · lower = safer | 125⚠ High | 23 ✓ Safer |
| 🎓 Education | ||
| School Quality 100 = national avg · grad rate, staffing & attainment | B+ (109) | A (118) ✓ Better |
| Student-Teacher Ratio Lower = smaller classes | 16.2:1 | 12.7:1 ✓ Smaller |
| Bachelor's Degree or Higher | 46.0% ✓ Higher | 42.4% |
| High School or Higher | 92.4% | 95.4% ✓ Higher |
| School District Name only — no quality rating available | St. Vrain Valley School District No. Re1J | FORT ZUMWALT SCHOOL DISTRICT |
| 🌤 Weather | ||
| Avg High — January | 44.5°F ✓ Warmer | 39.3°F |
| Avg High — July | 90.8°F ✓ Warmer | 87.5°F |
| Annual Precipitation | 16.1" ✓ Drier | 44.4" |
| Annual Snowfall | 47.4" | 13.5" ✓ Less |
| 👥 Demographics | ||
| Population | 98,282 ✓ Larger | 91,825 |
| Median Age | 39.7 ✓ Older | 38.0 |
| Homeownership Rate | 63.3% | 80.9% ✓ Higher |
| Under 18 | 20.4% | 24.9% ✓ More |
| Over 65 | 17.2% ✓ More | 13.2% |
Frequently Asked Questions
Longmont's cost of living index is 103.4 vs O'Fallon's 96.3 (US average = 100).
O'Fallon is 7% less expensive overall.
Based on the 23 decided categories above, O'Fallon leads 14 of 23 categories. Longmont wins 9 and O'Fallon wins 14. The right choice depends on your priorities — use the Pros & Cons and full table above to weigh what matters to you.
Whether you're moving from Longmont to O'Fallon or relocating the other way, focus on the biggest gaps: housing ($488,100 vs $283,600 median home), income ($89,720 vs $104,863), safety, and schools — all covered in the full table above.
Longmont, CO and O'Fallon, MO are about 772 miles apart (straight-line distance). Driving distance will be longer depending on the route.