The average teacher salary at Cooper Isd was $46,171 , which is 28 percent lower than the average salary for this job in Texas, and 29 percent lower than the national average for this job . Teacher salaries at Cooper Isd typically range from $40,000 to $49,250 (25th to 75th percentile). The highest reported teacher salary was $65,219. There are 64 employees at Cooper Isd with the job title teacher.