Highest salary at Galena Usd 120 in year 2018 was $152,747. Number of employees at Galena Usd 120 in year 2018 was 82. Average annual salary was $63,522 and median salary was $67,820. Galena Usd 120 average salary is 36 percent higher than USA average and median salary is 56 percent higher than USA median salary. From 2017 to 2018, the average salary of employees at this employer increased 16.3 percent, the median salary increased 8.0 percent.