Highest Sea Isle City employee salary in year 2018 was $167,832. Sea Isle City employees number in year 2018 was 113. Sea Isle City average salary was $65,412 and median salary was $63,629. According to the last payroll, Sea Isle City average salary is 12 percent lower than USA average and 9 percent lower than New Jersey state average. Sea Isle City employee salaries are usually between $34,451 and $90,732. Top 10% of highest-earning employees have salaries ranging from $105,292 to $167,832.