As of May 01, 2026, the average annual salary for Data Assistant in Joliet, IL is $77,837, equivalent to $37 per hour, $1,497 weekly, or $6,486 monthly. These figures, sourced from Salary.com’s real-time job posting scans, highlight competitive earning potential for Data Assistant in cities like San Jose, Santa Clara, and San Francisco.
Annually Salaries for Data Assistant in Joliet, IL vary widely, spanning from $56,361 to $81,390. Most professionals fall between the 25th percentile ($66,595) and 75th percentile ($79,697), while top earners (90th percentile) make $81,390 per year. This $13,102 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 2.8% lower than national averages. However, Joliet currently ranks 381 statewide for Data Assistant job salary. Professionals are advised to focus on high-growth sectors like to offset market challenges.
