The average custodial salary at Mathis Isd was $23,599 , which is 10 percent lower than the average salary for this job in Texas, and 28 percent lower than the national average for this job . Custodial salaries at Mathis Isd typically range from $21,150 to $25,380 (25th to 75th percentile). The highest reported custodial salary was $28,200. There are 19 employees at Mathis Isd with the job title custodial.