As of January 01, 2026, the average annual salary for Plant Engineer in the US is $90,760, equivalent to $44 per hour, $1,745 weekly, or $7,563 monthly. These figures, sourced from Salary.com’s real-time job posting scans, highlight competitive earning potential for Plant Engineer in cities like Santa Clara, San Jose, and Fremont.
Annually Salaries for Plant Engineer in the US vary widely, spanning from $76,543 to $103,937. Most professionals fall between the 25th percentile ($83,318) and 75th percentile ($97,657), while top earners (90th percentile) make $103,937 per year. This $14,339 pay gap underscores opportunities for salary growth through certifications, specialized skills like Standard Operating Procedures or Continuous Improvement, or targeting high-paying regions like District of Columbia or California.
Location and experience significantly influence earnings. For example, District of Columbia Plant Engineer often earn 10.7% above national averages due to demand from Fortune 61 companies and industry startups. Professionals are advised to focus on high-growth sectors like to offset market challenges.
