Grounds and maintenance specialists can find some of the best pay in Tucson, Arizona, where the average salary is $41,193. Wichita, Kansas, and Des Moines, Iowa, also offer strong salaries at $40,000 each. Portland, Oregon, and Indianapolis, Indiana, follow closely with average salaries of $40,000 and $37,266, respectively. Baltimore, Maryland, and Oklahoma City, Oklahoma, round out the list with average salaries of $36,297 and $33,141. These cities provide excellent opportunities for those in the field.