As of August 01, 2026, the average annual salary for Educational Diagnostician in Illinois is $50,471, equivalent to $24 per hour, $971 weekly, or $4,206 monthly. These figures, sourced from Salary.com’s real-time job posting scans, highlight competitive earning potential for Educational Diagnostician in cities like San Jose, Santa Clara, and San Francisco.
Annually Salaries for Educational Diagnostician in Illinois vary widely, spanning from $35,813 to $62,632. Most professionals fall between the 25th percentile ($42,799) and 75th percentile ($56,837), while top earners (90th percentile) make $62,632 per year. This $14,038 pay gap underscores opportunities for salary growth through certifications, specialized skills like Analysis or Child Development, or targeting high-paying regions like District of Columbia or California.
Location and experience significantly influence earnings. For example, Illinois Educational Diagnostician often earn 1.9% higher than national averages due to demand from Fortune 75 companies. However, Illinois currently ranks 14 nationwide for Educational Diagnostician job salary. Professionals are advised to focus on high-growth sectors like to offset market challenges.