The average custodial salary at Rains Isd was $36,248 , which is 38 percent higher than the average salary for this job in Texas, and 10 percent higher than the national average for this job . Custodial salaries at Rains Isd typically range from $34,819 to $38,022 (25th to 75th percentile). The highest reported custodial salary was $63,773. There are 22 employees at Rains Isd with the job title custodial.