Highest salary at Spotswood Borough in year 2018 was $187,707. Number of employees at Spotswood Borough in year 2018 was 70. Average annual salary was $60,429 and median salary was $54,599. Spotswood Borough average salary is 29 percent higher than USA average and median salary is 26 percent higher than USA median salary. From 2017 to 2018, the average salary of employees at this employer increased 13.0 percent, the median salary increased 4.7 percent.