The average custodial salary at Fort Bend Isd was $28,746 , which is 9 percent higher than the average salary for this job in Texas, but 13 percent lower than the national average for this job . Custodial salaries at Fort Bend Isd typically range from $24,086 to $32,324 (25th to 75th percentile). The highest reported custodial salary was $49,071. There are 429 employees at Fort Bend Isd with the job title custodial.