The average custodial salary at Rockdale Isd was $19,989 , which is 24 percent lower than the average salary for this job in Texas, and 39 percent lower than the national average for this job . Custodial salaries at Rockdale Isd typically range from $17,339 to $23,136 (25th to 75th percentile). The highest reported custodial salary was $26,195. There are 17 employees at Rockdale Isd with the job title custodial.