The average principal salary at Wilson Es was $59,254 , which is 3 percent higher than the average salary for this job in Oklahoma, but 50 percent lower than the national average for this job . Principal salaries at Wilson Es typically range from $58,950 to $65,270 (25th to 75th percentile). The highest reported principal salary was $73,537. There are 7 employees at Wilson Es with the job title principal.