Highest salary at Flinthills in year 2018 was $88,800. Number of employees at Flinthills in year 2018 was 25. Average annual salary was $56,355 and median salary was $56,111. Flinthills average salary is 20 percent higher than USA average and median salary is 29 percent higher than USA median salary. From 2017 to 2018, the average salary of employees at this employer increased 8.0 percent, the median salary increased 5.4 percent.