Highest Oak Grove employee salary in year 2018 was $46,034. Oak Grove employees number in year 2018 was 8. Oak Grove average salary was $28,772 and median salary was $30,193. According to the last payroll, Oak Grove average salary is 62 percent lower than USA average and 39 percent lower than Louisiana state average. Oak Grove employee salaries are usually between $23,533 and $34,923. Top 10% of highest-earning employees have salaries ranging from $46,034 to $46,034.