Highest City Of Petaluma employee salary in year 2018 was $218,317. City Of Petaluma employees number in year 2018 was 293. City Of Petaluma average salary was $80,766 and median salary was $82,425. According to the last payroll, City Of Petaluma average salary is 8 percent higher than USA average but 13 percent lower than California state average. City Of Petaluma employee salaries are usually between $64,751 and $95,722. Top 10% of highest-earning employees have salaries ranging from $109,989 to $218,317.