Highest City of Prosser employee salary in year 2023 was $135,777. City of Prosser employees number in year 2023 was 113. City of Prosser average salary was $35,033 and median salary was $5,814. According to the last payroll, City of Prosser average salary is 53 percent lower than USA average and 54 percent lower than Washington state average. City of Prosser employee salaries are usually between $3,275 and $73,204. Top 10% of highest-earning employees have salaries ranging from $96,076 to $135,777.