As of January 01, 2026, the average annual salary for Process Improvement Engineer in Illinois is $92,059, equivalent to $44 per hour, $1,770 weekly, or $7,672 monthly. These figures, sourced from Salary.com’s real-time job posting scans, highlight competitive earning potential for Process Improvement Engineer in cities like Santa Clara, San Jose, and Fremont.
Annually Salaries for Process Improvement Engineer in Illinois vary widely, spanning from $79,568 to $105,205. Most professionals fall between the 25th percentile ($85,521) and 75th percentile ($98,940), while top earners (90th percentile) make $105,205 per year. This $13,419 pay gap underscores opportunities for salary growth through certifications, specialized skills like Analysis or Design Engineering, or targeting high-paying regions like District of Columbia or California.
Location and experience significantly influence earnings. For example, Illinois Process Improvement Engineer often earn 1.9% higher than national averages due to demand from Fortune 46 companies. However, Illinois currently ranks 14 nationwide for Process Improvement Engineer job salary. Professionals are advised to focus on high-growth sectors like to offset market challenges.
