Process Engineer Salary in Illinois (2026)
Typical pay is $121,560 a year, with most process engineers in Illinois earning between $95,800 and $140,010. Based on the latest Bureau of Labor Statistics data.
Salary Calculator›Process Engineer›Illinois
The typical process engineer in Illinois earns $121,560 a year, 3% less than the national median. Early-career pay starts around $95,800, experienced process engineers earn $140,010 or more, and the top 10% make over $176,110. About 520 people work in this occupation in Illinois.
Process Engineer salary in Illinois
Annual pay, BLS survey of May 2025
What process engineers do
Process engineers improve and troubleshoot production processes in refineries, chemical plants, food plants and manufacturing lines, focusing on yield, safety and cost. The figures shown use the BLS chemical engineer occupation, which covers most process engineering roles in plants.
Process Engineer pay by metro area in Illinois
Typical annual pay in each Illinois metro area where BLS publishes figures for process engineers.
| Metro area | Typical | Early career | Experienced |
|---|---|---|---|
| Peoria, IL | $111,880 | $97,470 | $122,740 |
| Chicago-Naperville-Elgin, IL-IN | $110,760 | $94,170 | $139,520 |
| United States | $125,040 | $97,820 | $157,190 |
Other engineering, design and supply chain salaries in Illinois
| Role | Typical |
|---|---|
| Mechanical Engineer | $102,680 |
| Electrical Engineer | $107,860 |
| Controls Engineer | $107,860 |
| Civil Engineer | $99,760 |
| Industrial Engineer | $100,540 |
| Aerospace Engineer | $108,940 |
| Environmental Engineer | $107,990 |
| Engineering Manager | $163,610 |
| Construction Manager | $109,160 |
| Architect | $81,780 |
| CAD Designer | $58,240 |
| Mechanical Designer | $63,320 |
| Supply Chain Analyst | $80,100 |
| Buyer | $78,470 |
| Software Developer | $132,110 |
Process Engineer salary FAQs
How much does a process engineer make in Illinois?
The typical (median) process engineer in Illinois earns $121,560 a year, or about $58.44 an hour (BLS, May 2025). Half earn more and half earn less.
What is the entry-level salary for a process engineer in Illinois?
Early-career process engineers in Illinois typically earn around $95,800 (the 25th percentile), and the lowest-paid 10% earn under $79,120. Degree, internships, licenses and the industry all move starting pay.
How much do experienced process engineers earn in Illinois?
Experienced process engineers in Illinois earn $140,010 or more (the 75th percentile), and the top 10% earn over $176,110.
Do process engineers earn more in Illinois than the national average?
The typical process engineer in Illinois earns 3% less than the national median of $125,040. Prices in Illinois are close to the US average (BEA, 2024), so the same salary goes a little further there.
Are process engineers in demand?
BLS projects employment in this occupation to grow 4.7% from 2025 to 2035, compared with 3.5% for all jobs, with about 1,100 openings a year nationally as people retire, change jobs or the field grows.
Hiring process engineers in Illinois?
Where these numbers come from
Pay figures come from the US Bureau of Labor Statistics Occupational Employment and Wage Statistics program (OEWS), which surveys about 1.1 million employer locations and is the government's main source of pay by occupation and location. This page uses the May 2025 survey, released in 2026, and updates itself when BLS publishes the next year's figures. Job outlook comes from the BLS Employment Projections for 2025–35. Cost of living comes from the Bureau of Economic Analysis Regional Price Parities for 2024, where the US average is 100.
Pay is base wages and salary before tax. It does not include bonuses, overtime, benefits or equity. Early career is the 25th percentile (a quarter of workers earn less), Typical is the median and Experienced is the 75th percentile. The bar shows the full range from the 10th to the 90th percentile. The salary rank check estimates a percentile by drawing straight lines between those five published points.
BLS groups some job titles together. Controls engineers, for example, are counted with electrical engineers, and CAD designers with drafters. Each result names the BLS occupation it uses so you can see exactly what is being measured. BLS does not publish every occupation in every area, for example when too few people in a job were surveyed or when a figure does not meet its reliability standards. When a metro figure is missing, the calculator shows the state figure, or the national figure if the state is also missing, and says so.
BLS occupation used on this page: Chemical Engineers (SOC 17-2041).