As of January 01, 2026, the average annual salary for computer software engineering in Illinois is $141,988, equivalent to $68 per hour, $2,731 weekly, or $11,832 monthly. These figures, sourced from Salary.com’s real-time job posting scans, highlight competitive earning potential for computer software engineering in cities like Santa Clara, San Jose, and Fremont.
Annually Salaries for computer software engineering in Illinois vary widely, spanning from $120,542 to $165,357. Most professionals fall between the 25th percentile ($130,762) and 75th percentile ($154,220), while top earners (90th percentile) make $165,357 per year. This $23,458 pay gap underscores opportunities for salary growth through certifications, specialized skills like Analysis or Software Development, or targeting high-paying regions like District of Columbia or California.
Location and experience significantly influence earnings. For example, Illinois computer software engineering often earn 1.9% higher than national averages due to demand from Fortune 38 companies. However, Illinois currently ranks 14 nationwide for computer software engineering job salary. Professionals are advised to focus on high-growth sectors like to offset market challenges.
