The average custodial salary at Cuero Isd was $23,416 , which is 11 percent lower than the average salary for this job in Texas, and 29 percent lower than the national average for this job . Custodial salaries at Cuero Isd typically range from $21,721 to $25,659 (25th to 75th percentile). The highest reported custodial salary was $27,000. There are 22 employees at Cuero Isd with the job title custodial.