Average Base Salary
Average Hourly Rate
The average assistant plumber salary in District of Columbia, United States is $29,981 or an equivalent hourly rate of $14. This is 10% higher (+$2,824) than the average assistant plumber salary in the United States. In addition, they earn an average bonus of $417. Salary estimates based on salary survey data collected directly from employers and anonymous employees in District of Columbia, United States.