Solid Waste Supervisor salary at Cowlitz County

The average solid waste supervisor salary at Cowlitz County was $80,705 , which is 14 percent lower than the average salary for this job in Washington, but 1 percent higher than the national average for this job . Solid Waste Supervisor salaries at Cowlitz County typically range from $79,310 to $82,100 (25th to 75th percentile). The highest reported solid waste supervisor salary was $82,100. There are 2 employees at Cowlitz County with the job title solid waste supervisor.