Highest Brewster employee salary in year 2017 was $155,546. Brewster employees number in year 2017 was 145. Brewster average salary was $44,060 and median salary was $40,818. According to the last payroll, Brewster average salary is 41 percent lower than USA average and 42 percent lower than Washington state average. Brewster employee salaries are usually between $22,276 and $61,151. Top 10% of highest-earning employees have salaries ranging from $76,773 to $155,546. From 2016 to 2017, the average salary of employees at this employer increased 2.5 percent.