Grounds Maintenance Supervisor salary at County Of Middlesex

The average grounds maintenance supervisor salary at County Of Middlesex was $127,123 , which is 61 percent higher than the average salary for this job in New Jersey, and 157 percent higher than the national average for this job . Grounds Maintenance Supervisor salaries at County Of Middlesex typically range from $123,890 to $130,356 (25th to 75th percentile). The highest reported grounds maintenance supervisor salary was $130,356. There are 2 employees at County Of Middlesex with the job title grounds maintenance supervisor.