As of February 01, 2026, the average annual salary for Data Assistant in Joliet, IL is $79,622, equivalent to $38 per hour, $1,531 weekly, or $6,635 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 Joliet, IL vary widely, spanning from $57,608 to $83,194. Most professionals fall between the 25th percentile ($68,099) and 75th percentile ($81,492), while top earners (90th percentile) make $83,194 per year. This $13,393 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, Joliet Data Assistant often earn 0.6% higher than national averages. However, Joliet currently ranks 310 statewide for Data Assistant job salary. Professionals are advised to focus on high-growth sectors like to offset market challenges.
