Highest Soap Lake employee salary in year 2017 was $100,280. Soap Lake employees number in year 2017 was 72. Soap Lake average salary was $46,301 and median salary was $42,820. According to the last payroll, Soap Lake average salary is 38 percent lower than USA average and 39 percent lower than Washington state average. Soap Lake employee salaries are usually between $25,498 and $59,727. Top 10% of highest-earning employees have salaries ranging from $77,789 to $100,280. From 2016 to 2017, the average salary of employees at this employer increased 1.6 percent, the median salary increased 4.2 percent.