As of February 01, 2026, the average annual salary for Data Assistant in Illinois is $80,133, equivalent to $39 per hour, $1,541 weekly, or $6,678 monthly. These figures, sourced from Salary.com’s real-time job posting scans, highlight competitive earning potential for Data Assistant in cities like Santa Clara, San Jose, and Fremont.
Annually Salaries for Data Assistant in Illinois vary widely, spanning from $57,978 to $83,728. Most professionals fall between the 25th percentile ($68,536) and 75th percentile ($82,015), while top earners (90th percentile) make $83,728 per year. This $13,479 pay gap underscores opportunities for salary growth through certifications, specialized skills like Analysis or ERP, or targeting high-paying regions like District of Columbia or California.
Location and experience significantly influence earnings. For example, Illinois Data Assistant often earn 1.9% higher than national averages due to demand from Fortune 38 companies. However, Illinois currently ranks 14 nationwide for Data Assistant job salary. Professionals are advised to focus on high-growth sectors like to offset market challenges.
