As of May 01, 2026, the average annual salary for Plumbing Engineer in Illinois is $75,176, equivalent to $36 per hour, $1,446 weekly, or $6,265 monthly. These figures, sourced from Salary.com’s real-time job posting scans, highlight competitive earning potential for Plumbing Engineer in cities like San Jose, Santa Clara, and San Francisco.
Annually Salaries for Plumbing Engineer in Illinois vary widely, spanning from $55,691 to $89,277. Most professionals fall between the 25th percentile ($64,976) and 75th percentile ($82,557), while top earners (90th percentile) make $89,277 per year. This $17,581 pay gap underscores opportunities for salary growth through certifications, specialized skills like Customer Service or Repairing, or targeting high-paying regions like District of Columbia or California.
Location and experience significantly influence earnings. For example, Illinois Plumbing Engineer often earn 1.9% higher than national averages due to demand from Fortune 75 companies. However, Illinois currently ranks 14 nationwide for Plumbing Engineer job salary. Professionals are advised to focus on high-growth sectors like to offset market challenges.
