College Costs in O Fallon, IL 2026
Compare tuition, housing, and financial aid across 2 colleges in O Fallon, Illinois. Use our free calculator to estimate your total cost.
Avg Public Tuition
$15,400
per year
Avg Private Tuition
$38,000
per year
Avg Rent Near Campus
$702
per month
Colleges & Universities
2
institutions
O Fallon Overview
Population
32,024
Student Population
2,753 (8.6%)
Cost of Living Index
93.3 (avg: 100)
Walk Score
34/100
Transit Score
20/100
Unemployment Rate
4.9%
College Cost Calculator for O Fallon
Cost Inputs
Total Cost (4 Years, Public In-State)
$117,764
Total After Financial Aid
$117,764
Annual Cost
$29,441
Annual After Aid
$29,441
Cost Breakdown (4 Years)
If Financed (10-Year Loan at 6.5%)
| Loan Amount | $117,764 |
| Monthly Payment | $1,337 |
| Total Interest | $42,698 |
| Total Loan Cost | $160,462 |
Universities in O Fallon
| University | Type | Annual Tuition |
|---|---|---|
| O Fallon State University | Public | $14,708 |
| O Fallon Community College | Community | $5,647 |
O Fallon has 2 total colleges and universities. Tuition figures are approximate annual in-state rates for the 2025-2026 academic year.
Cost of Living in O Fallon vs. National Average
| Category | O Fallon | National Avg | Difference |
|---|---|---|---|
| Public Tuition (In-State) | $15,400 | $10,940 | +$4,460 |
| Monthly Rent Near Campus | $702 | $1,050 | -$348 |
| Cost of Living Index | 93.3 | 100 | -6.700000000000003 |
O Fallon's cost of living is below the national average. This makes it a more affordable city for students compared to many other college towns.
Student Life in O Fallon
Walk Score
Car-Dependent
Transit Score
Minimal Transit
Student Population
2,753 students
O Fallon has a total population of 32,024, with approximately 2,753 college students (8.6% of the population). O Fallon has a significant student presence that contributes to a diverse cultural scene with restaurants, entertainment, and networking opportunities.
Post-Graduation Outlook in O Fallon
$36,381
Starting Salary
4.9%
Unemployment Rate
63%
Graduation Rate
~85 yrs
ROI Payback Period
Return on Investment Analysis
Graduates from colleges in O Fallon earn a median starting salary of $36,381, which is $1,381 more per year than the average high school graduate salary of $35,000. At a 4-year public university cost of $117,764 (including room and board), it would take approximately 85 years of the salary premium to recoup the investment. With average financial aid of $12,608 per student per year, the net cost and payback period can be significantly reduced.
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