Highest salary at River School in year 2020 was $74,212. Number of employees at River School in year 2020 was 11. Average annual salary was $32,547 and median salary was $37,528. River School average salary is 31 percent lower than USA average and median salary is 14 percent lower than USA median salary. From 2019 to 2020, the average salary of employees at this employer increased 23.4 percent, the median salary increased 14.8 percent.