Highest salary at River School in year 2019 was $70,010. Number of employees at River School in year 2019 was 13. Average annual salary was $26,382 and median salary was $32,680. River School average salary is 44 percent lower than USA average and median salary is 25 percent lower than USA median salary. From 2018 to 2019, the average salary of employees at this employer increased 1.9 percent, the median salary increased 25.8 percent.