As of April 01, 2026, the average annual salary for Assistant Data Analyst in Illinois is $48,073, equivalent to $23 per hour, $924 weekly, or $4,006 monthly. These figures, sourced from Salary.com’s real-time job posting scans, highlight competitive earning potential for Assistant Data Analyst in cities like Santa Clara, San Jose, and Fremont.
Annually Salaries for Assistant Data Analyst in Illinois vary widely, spanning from $39,249 to $56,804. Most professionals fall between the 25th percentile ($43,454) and 75th percentile ($52,643), while top earners (90th percentile) make $56,804 per year. This $9,189 pay gap underscores opportunities for salary growth through certifications, specialized skills like Customer Service or PowerPoint, or targeting high-paying regions like District of Columbia or California.
Location and experience significantly influence earnings. For example, Illinois Assistant Data Analyst often earn 1.9% higher than national averages due to demand from Fortune 17 companies. However, Illinois currently ranks 14 nationwide for Assistant Data Analyst job salary. Professionals are advised to focus on high-growth sectors like to offset market challenges.
