Highest Yelm employee salary in year 2017 was $160,656. Yelm employees number in year 2017 was 749. Yelm average salary was $46,124 and median salary was $43,513. According to the last payroll, Yelm average salary is 38 percent lower than USA average and 37 percent lower than Washington state average. Yelm employee salaries are usually between $21,307 and $66,775. Top 10% of highest-earning employees have salaries ranging from $81,901 to $160,656.