As of September 01, 2026, the average annual salary for Environmental Science Professor in Illinois is $111,636, equivalent to $54 per hour, $2,147 weekly, or $9,303 monthly. These figures, sourced from Salary.com’s real-time job posting scans, highlight competitive earning potential for Environmental Science Professor in cities like San Jose, Santa Clara, and San Francisco.
Annually Salaries for Environmental Science Professor in Illinois vary widely, spanning from $85,175 to $143,919. Most professionals fall between the 25th percentile ($97,786) and 75th percentile ($128,534), while top earners (90th percentile) make $143,919 per year. This $30,748 pay gap underscores opportunities for salary growth through certifications, specialized skills like Leadership or Special Education, or targeting high-paying regions like District of Columbia or California.
Location and experience significantly influence earnings. For example, Illinois Environmental Science Professor often earn 1.9% higher than national averages due to demand from Fortune 32 companies. However, Illinois currently ranks 14 nationwide for Environmental Science Professor job salary. Professionals are advised to focus on high-growth sectors like Edu., Gov't. & Nonprofit to offset market challenges.
