Criminal Investigator salary at Polk County

The average criminal investigator salary at Polk County was $50,479 , which is 27 percent lower than the average salary for this job in Texas, and 53 percent lower than the national average for this job . Criminal Investigator salaries at Polk County typically range from $47,022 to $52,812 (25th to 75th percentile). The highest reported criminal investigator salary was $52,812. There are 3 employees at Polk County with the job title criminal investigator.