Highest City of Mattawa employee salary in year 2024 was $110,081. City of Mattawa employees number in year 2024 was 22. City of Mattawa average salary was $47,257 and median salary was $47,437. According to the last payroll, City of Mattawa average salary is 37 percent lower than USA average and 38 percent lower than Washington state average. City of Mattawa employee salaries are usually between $1,438 and $86,012. Top 10% of highest-earning employees have salaries ranging from $107,653 to $110,081. From 2023 to 2024, the average salary of employees at this employer increased 12.9 percent, the median salary increased 49.3 percent.