Highest salary at River School in year 2022 was $78,212. Number of employees at River School in year 2022 was 12. Average annual salary was $30,906 and median salary was $27,734. River School average salary is 34 percent lower than USA average and median salary is 36 percent lower than USA median salary. From 2021 to 2022, the average salary of employees at this employer increased 3.9 percent.