The average custodial salary at Bowie Isd was $21,361 , which is 19 percent lower than the average salary for this job in Texas, and 35 percent lower than the national average for this job . Custodial salaries at Bowie Isd typically range from $20,120 to $21,753 (25th to 75th percentile). The highest reported custodial salary was $29,534. There are 19 employees at Bowie Isd with the job title custodial.