As of July 01, 2026, the average annual salary for Gas Fitter in Illinois is $102,153, equivalent to $49 per hour, $1,964 weekly, or $8,513 monthly. These figures, sourced from Salary.com’s real-time job posting scans, highlight competitive earning potential for Gas Fitter in cities like San Jose, Santa Clara, and San Francisco.
Annually Salaries for Gas Fitter in Illinois vary widely, spanning from $76,775 to $121,608. Most professionals fall between the 25th percentile ($88,869) and 75th percentile ($112,337), while top earners (90th percentile) make $121,608 per year. This $23,468 pay gap underscores opportunities for salary growth through certifications, specialized skills like Customer Service or Metrology, or targeting high-paying regions like District of Columbia or California.
Location and experience significantly influence earnings. For example, Illinois Gas Fitter often earn 1.9% higher than national averages due to demand from Fortune 63 companies. However, Illinois currently ranks 14 nationwide for Gas Fitter job salary. Professionals are advised to focus on high-growth sectors like to offset market challenges.
