As of June 01, 2026, the average annual salary for Plumber's Assistant in Washington is $70,878, equivalent to $34 per hour, $1,363 weekly, or $5,907 monthly. These figures, sourced from Salary.com’s real-time job posting scans, highlight competitive earning potential for Plumber's Assistant in cities like San Jose, Santa Clara, and San Francisco.
Annually Salaries for Plumber's Assistant in Washington vary widely, spanning from $52,494 to $84,232. Most professionals fall between the 25th percentile ($61,255) and 75th percentile ($77,868), while top earners (90th percentile) make $84,232 per year. This $16,613 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, Washington Plumber's Assistant often earn 8.4% higher than national averages due to demand from Fortune 52 companies. However, Washington currently ranks 4 nationwide for Plumber's Assistant job salary. Professionals are advised to focus on high-growth sectors like to offset market challenges.