As of October 01, 2026, the average annual salary for Plastic Engineer in Missouri is $86,119, equivalent to $41 per hour, $1,656 weekly, or $7,177 monthly. These figures, sourced from Salary.com’s real-time job posting scans, highlight competitive earning potential for Plastic Engineer in cities like San Jose, Santa Clara, and San Francisco.
Annually Salaries for Plastic Engineer in Missouri vary widely, spanning from $75,303 to $100,516. Most professionals fall between the 25th percentile ($80,458) and 75th percentile ($93,655), while top earners (90th percentile) make $100,516 per year. This $13,197 pay gap underscores opportunities for salary growth through certifications, specialized skills like Analysis or Design Engineering, or targeting high-paying regions like District of Columbia or California.
Location and experience significantly influence earnings. For example, Missouri Plastic Engineer often earn 5.0% lower than national averages due to demand from Fortune 57 companies. However, Missouri currently ranks 37 nationwide for Plastic Engineer job salary. Professionals are advised to focus on high-growth sectors like to offset market challenges.
