The average monitor salary at Hidalgo County was $46,666 , which is 13 percent higher than the average salary for this job in Texas, and 2544 percent higher than the national average for this job . Monitor salaries at Hidalgo County typically range from $45,085 to $48,246 (25th to 75th percentile). The highest reported monitor salary was $48,246. There are 4 employees at Hidalgo County with the job title monitor.