Highest Chehalis employee salary in year 2017 was $163,379. Chehalis employees number in year 2017 was 446. Chehalis average salary was $45,804 and median salary was $41,327. According to the last payroll, Chehalis average salary is 39 percent lower than USA average and 40 percent lower than Washington state average. Chehalis employee salaries are usually between $18,899 and $71,316. Top 10% of highest-earning employees have salaries ranging from $84,150 to $163,379. From 2016 to 2017, the average salary of employees at this employer increased 4.6 percent, the median salary increased 6.7 percent.