As of January 01, 2026, the average annual salary for Plant Engineer in Oklahoma is $83,917, equivalent to $40 per hour, $1,614 weekly, or $6,993 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 Oklahoma vary widely, spanning from $70,772 to $96,100. Most professionals fall between the 25th percentile ($77,036) and 75th percentile ($90,294), while top earners (90th percentile) make $96,100 per year. This $13,258 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, Oklahoma Plant Engineer often earn 7.5% lower than national averages due to demand from Fortune 61 companies. However, Oklahoma currently ranks 46 nationwide for Plant Engineer job salary. Professionals are advised to focus on high-growth sectors like to offset market challenges.
