The average plumber salary at Dallas Isd was $51,389 , which is 1 percent lower than the average salary for this job in Texas, and 42 percent lower than the national average for this job . Plumber salaries at Dallas Isd typically range from $49,958 to $53,297 (25th to 75th percentile). The highest reported plumber salary was $54,940. There are 17 employees at Dallas Isd with the job title plumber.