Office Assistant Senior salary at Brazoria County

The average office assistant senior salary at Brazoria County was $29,957 , which is 24 percent lower than the average salary for this job in Texas, and 16 percent lower than the national average for this job . Office Assistant Senior salaries at Brazoria County typically range from $19,414 to $40,499 (25th to 75th percentile). The highest reported office assistant senior salary was $40,498. There are 4 employees at Brazoria County with the job title office assistant senior.