How Chemical Engineers in Illinois get paid in 2026 — median, range, experience tiers, metro breakdown, and a comparison against national pay.
Pay tiers reflect typical Illinois compensation across career stages. Specialized employers may pay above these ranges.
| Experience | Median 2026 | 25th % | 75th % |
|---|---|---|---|
| Entry (0–1 yr) | $95,500 | $72,500 | $124,100 |
| Junior (2–4 yrs) | $118,700 | $90,200 | $154,300 |
| Mid-Level (5–9 yrs) | $136,500 | $103,700 | $177,400 |
| Senior (10–14 yrs) | $163,800 | $124,400 | $212,800 |
| Veteran (15+ yrs) | $185,600 | $141,000 | $241,200 |
Pay varies sharply within Illinois. Major metros usually outpay state-wide averages.
| Metro | Median | 25th % | 75th % | vs Illinois |
|---|---|---|---|---|
| Chicago | $141,500 | $107,500 | $183,900 | +4% |
Top occupations by median pay in Illinois — useful context if you're weighing a career switch.
→ See full ranking of top 25 highest-paying jobs in Illinois
If you'd consider relocating, here's how regional and comparable markets pay for the same job.
The average Chemical Engineer salary in Illinois is $136,500 per year as of 2026, based on projections from BLS Occupational Employment Statistics. The 25th percentile sits at $103,700 and the 75th at $177,400.
Pay-wise, Illinois sits +9% above the national Chemical Engineer median ($125,200). That makes it one of the stronger markets — though cost of living should always be factored in alongside raw salary.
Senior Chemical Engineers (10–14 years of experience) in Illinois earn around $163,800 per year on average. Veterans with 15+ years can reach $185,600 or more, especially at the 75th percentile and above.
Among all 51 jurisdictions (50 states + DC), Illinois ranks 16th for Chemical Engineer pay. The highest-paying state pays around $175,300 on average.
The median is a benchmark, not a verdict. Your exact market value depends on your experience and education — plus your specific employer's pay band. Run the free calculator for a personalized number.
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