Grounds Maintenance Supervisor salary at Los Angeles County

The average grounds maintenance supervisor salary at Los Angeles County was $121,088 , which is 1 percent lower than the average salary for this job in California, but 114 percent higher than the national average for this job . Grounds Maintenance Supervisor salaries at Los Angeles County typically range from $117,182 to $130,822 (25th to 75th percentile). The highest reported grounds maintenance supervisor salary was $137,224. There are 13 employees at Los Angeles County with the job title grounds maintenance supervisor.