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 8 percent lower than 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.