The average buyer salary at Dallas County was $65,936 , which is 42 percent higher than the average salary for this job in Texas, but 6 percent lower than the national average for this job . Buyer salaries at Dallas County typically range from $62,856 to $68,200 (25th to 75th percentile). The highest reported buyer salary was $68,200. There are 3 employees at Dallas County with the job title buyer.