As of June 01, 2026, the average annual salary for Water Resources Engineer in Illinois is $108,966, equivalent to $52 per hour, $2,096 weekly, or $9,081 monthly. These figures, sourced from Salary.com’s real-time job posting scans, highlight competitive earning potential for Water Resources Engineer in cities like San Jose, Santa Clara, and San Francisco.
Annually Salaries for Water Resources Engineer in Illinois vary widely, spanning from $93,374 to $131,558. Most professionals fall between the 25th percentile ($100,804) and 75th percentile ($120,792), while top earners (90th percentile) make $131,558 per year. This $19,988 pay gap underscores opportunities for salary growth through certifications, specialized skills like Consulting or AutoCAD, or targeting high-paying regions like District of Columbia or California.
Location and experience significantly influence earnings. For example, Illinois Water Resources Engineer often earn 1.9% higher than national averages due to demand from Fortune 70 companies. However, Illinois currently ranks 14 nationwide for Water Resources Engineer job salary. Professionals are advised to focus on high-growth sectors like to offset market challenges.
