Highest City of Seaford employee salary in year 2017 was $148,396. City of Seaford employees number in year 2017 was 104. City of Seaford average salary was $46,711 and median salary was $47,627. According to the last payroll, City of Seaford average salary is 38 percent lower than USA average and the same as Delaware state average. City of Seaford employee salaries are usually between $28,089 and $64,345. Top 10% of highest-earning employees have salaries ranging from $77,562 to $148,396.