Highest Smithtown employee salary in year 2022 was $177,496. Smithtown employees number in year 2022 was 622. Smithtown average salary was $56,803 and median salary was $55,802. According to the last payroll, Smithtown average salary is 24 percent lower than USA average and 3 percent lower than New York state average. Smithtown employee salaries are usually between $13,796 and $88,753. Top 10% of highest-earning employees have salaries ranging from $110,414 to $177,496.