The average deputy salary at Midland County was $64,809 , which is 12 percent lower than the average salary for this job in Texas, and 12 percent lower than the national average for this job . Deputy salaries at Midland County typically range from $55,870 to $79,719 (25th to 75th percentile). The highest reported deputy salary was $104,230. There are 59 employees at Midland County with the job title deputy.