Highest salary at Sanilac County in year 2020 was $152,321. Number of employees at Sanilac County in year 2020 was 260. Average annual salary was $38,394 and median salary was $38,265. Sanilac County average salary is 18 percent lower than USA average and median salary is 12 percent lower than USA median salary. From 2019 to 2020, the average salary of employees at this employer increased 5.0 percent, the median salary increased 4.5 percent.