Highest Berwick employee salary in year 2018 was $67,900. Berwick employees number in year 2018 was 11. Berwick average salary was $41,148 and median salary was $39,166. According to the last payroll, Berwick average salary is 45 percent lower than USA average and 13 percent lower than Louisiana state average. Berwick employee salaries are usually between $35,035 and $43,087. Top 10% of highest-earning employees have salaries ranging from $49,529 to $67,900.