The average secretary salary at Monroe Es was $17,604 , which is 35 percent lower than the average salary for this job in Oklahoma, and 75 percent lower than the national average for this job . Secretary salaries at Monroe Es typically range from $15,504 to $19,547 (25th to 75th percentile). The highest reported secretary salary was $19,547. There are 4 employees at Monroe Es with the job title secretary.