The average custodial salary at Luling Isd was $21,211 , which is 19 percent lower than the average salary for this job in Texas, and 36 percent lower than the national average for this job . Custodial salaries at Luling Isd typically range from $20,388 to $22,361 (25th to 75th percentile). The highest reported custodial salary was $23,361. There are 12 employees at Luling Isd with the job title custodial.