As of June 01, 2026, the average annual salary for Research Librarian in Illinois is $64,761, equivalent to $31 per hour, $1,245 weekly, or $5,397 monthly. These figures, sourced from Salary.com’s real-time job posting scans, highlight competitive earning potential for Research Librarian in cities like San Jose, Santa Clara, and San Francisco.
Annually Salaries for Research Librarian in Illinois vary widely, spanning from $50,436 to $77,613. Most professionals fall between the 25th percentile ($57,263) and 75th percentile ($71,488), while top earners (90th percentile) make $77,613 per year. This $14,225 pay gap underscores opportunities for salary growth through certifications, specialized skills like Customer Service or Information Sciences, or targeting high-paying regions like District of Columbia or California.
Location and experience significantly influence earnings. For example, Illinois Research Librarian often earn 1.9% higher than national averages due to demand from Fortune 78 companies. However, Illinois currently ranks 14 nationwide for Research Librarian job salary. Professionals are advised to focus on high-growth sectors like to offset market challenges.
