As of September 01, 2026, the average annual salary for Assistant Prosecuting Attorney in Illinois is $100,841, equivalent to $48 per hour, $1,939 weekly, or $8,403 monthly. These figures, sourced from Salary.com’s real-time job posting scans, highlight competitive earning potential for Assistant Prosecuting Attorney in cities like San Jose, Santa Clara, and San Francisco.
Annually Salaries for Assistant Prosecuting Attorney in Illinois vary widely, spanning from $77,874 to $119,935. Most professionals fall between the 25th percentile ($88,819) and 75th percentile ($110,836), while top earners (90th percentile) make $119,935 per year. This $22,017 pay gap underscores opportunities for salary growth through certifications, specialized skills like Commitment or Estate Planning, or targeting high-paying regions like District of Columbia or California.
Location and experience significantly influence earnings. For example, Illinois Assistant Prosecuting Attorney often earn 1.9% higher than national averages due to demand from Fortune 50 companies. However, Illinois currently ranks 14 nationwide for Assistant Prosecuting Attorney job salary. Professionals are advised to focus on high-growth sectors like to offset market challenges.
