As of April 01, 2026, the average annual salary for Plastic Engineer in California is $99,993, equivalent to $48 per hour, $1,923 weekly, or $8,333 monthly. These figures, sourced from Salary.com’s real-time job posting scans, highlight competitive earning potential for Plastic Engineer in cities like Santa Clara, San Jose, and Fremont.
Annually Salaries for Plastic Engineer in California vary widely, spanning from $86,874 to $116,745. Most professionals fall between the 25th percentile ($93,126) and 75th percentile ($108,762), while top earners (90th percentile) make $116,745 per year. This $15,636 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, California Plastic Engineer often earn 10.3% higher than national averages due to demand from Fortune 57 companies. However, California currently ranks 2 nationwide for Plastic Engineer job salary. Professionals are advised to focus on high-growth sectors like to offset market challenges.
