Highest salary at Custer County in year 2024 was $100,473. Number of employees at Custer County in year 2024 was 133. Average annual salary was $35,625 and median salary was $40,096. Custer County average salary is 24 percent lower than USA average and median salary is 8 percent lower than USA median salary. From 2023 to 2024, the average salary of employees at this employer increased 9.9 percent, the median salary increased 14.3 percent.