Highway Maintenance Supervisor salary at St. Louis County

The average highway maintenance supervisor salary at St. Louis County was $98,078 , which is 5 percent higher than the average salary for this job in Minnesota, and 6 percent higher than the national average for this job . Highway Maintenance Supervisor salaries at St. Louis County typically range from $91,850 to $105,786 (25th to 75th percentile). The highest reported highway maintenance supervisor salary was $119,379. There are 18 employees at St. Louis County with the job title highway maintenance supervisor.