The average plumber salary at U R I was $47,903 , which is 2 percent higher than the average salary for this job in Rhode Island, but 46 percent lower than the national average for this job . Plumber salaries at U R I typically range from $46,155 to $49,577 (25th to 75th percentile). The highest reported plumber salary was $52,761. There are 7 employees at U R I with the job title plumber.