The average maintenance salary at Cuero Isd was $31,824 , which is 12 percent lower than the average salary for this job in Texas, and 31 percent lower than the national average for this job . Maintenance salaries at Cuero Isd typically range from $25,824 to $32,275 (25th to 75th percentile). The highest reported maintenance salary was $66,621. There are 13 employees at Cuero Isd with the job title maintenance.