The average deputy salary at Rockwall County was $86,962 , which is 17 percent higher than the average salary for this job in Texas, and 15 percent higher than the national average for this job . Deputy salaries at Rockwall County typically range from $89,131 to $97,122 (25th to 75th percentile). The highest reported deputy salary was $127,680. There are 35 employees at Rockwall County with the job title deputy.