O'Fallon vs Peoria: Civil Engineer Salary (2026)
Compare civil engineer salaries between O'Fallon, IL and Peoria, IL. All figures are 2026 estimates projected from BLS 2025 data.
Side-by-Side Comparison
| Metric | O'Fallon, IL | Peoria, IL |
|---|---|---|
| Median Salary | $97,055 | $97,642▲ |
| Hourly Rate | $46.67 | $46.94▲ |
| Entry Level (P10) | $64,771▲ | $64,226 |
| 25th Percentile | $75,201 | $76,860▲ |
| 75th Percentile | $121,884 | $125,835▲ |
| Top Earner (P90) | $150,435 | $159,271▲ |
| Total Employed | 6 | 430▲ |
Verdict
Peoria, IL offers better overall compensation for civil engineers, winning 4 out of 4 metrics compared to O'Fallon.
The salary gap between O'Fallon and Peoria is $587 (0.60%). Peoria's median is -5.65% compared to the US national median of $103,492.
Salary Range Comparison
The full salary range (10th to 90th percentile) in O'Fallon spans $85,664,Peoria spans $95,045. Peoria has a wider pay range, suggesting more variation in pay between entry-level and experienced civil engineers.
Cost-of-Living Adjusted Comparison
After cost-of-living adjustment, Peoria ($107,027 effective) pays 7.08% more than O'Fallon ($99,954 effective).
Cost-of-living adjustment: salary × (100 / CoL index). Index of 100 = national average.
Which City Is Right for You?
Choose O'Fallon if…
- ✓You prefer the Illinois area and lifestyle
Choose Peoria if…
- ✓Higher median salary ($97,642/year)
- ✓Better top-earner potential ($159,271)
- ✓Larger job market (430 employed)
- ✓Better purchasing power (CoL-adjusted: $107,027)
- ✓You prefer the Illinois area and lifestyle
Historical Salary Growth Comparison
Based on BLS OEWS metropolitan area data, civil engineer salaries in O'Fallon grew -2.0% from 2024 to 2025, compared to 14.9% growth in Peoria over the same period.
O'Fallon, IL
$96,490 (2024) → $94,568 (2025)
Peoria, IL
$82,800 (2019) → $95,140 (2025)
View Full Salary Data
O'Fallon, IL
Peoria, IL
Frequently Asked Questions
Which city pays civil engineers more: O'Fallon or Peoria?
What is the hourly rate difference between O'Fallon and Peoria?
Should I relocate from O'Fallon to Peoria as a civil engineer?
What do entry-level civil engineers earn in O'Fallon vs Peoria?
Related Comparisons
Written by Jordan Chen, P.E.
Career Analyst
Jordan Chen has 10 years of experience in structural engineering. He works primarily in urban infrastructure projects.
Methodology & Data Source
All salary figures are 2026 projections based on BLS OEWS May 2025 data. A 2.63% CAGR (derived from 6-year national BLS trends) was applied to estimate current compensation. Cost-of-living adjustments use BEA Regional Price Parity data. Actual salaries vary by employer, certifications, and experience.
Data Sources & Methodology
Source: BLS, OEWS , released .
Compiled and verified by Jordan Chen, P.E., a licensed civil engineer with 10+ years of clinical experience. · View source data at BLS.gov