Investigator I salary at Dallas County

The average investigator i salary at Dallas County was $73,126 , which is 37 percent higher than the average salary for this job in Texas, and 29 percent higher than the national average for this job . Investigator I salaries at Dallas County typically range from $71,532 to $73,924 (25th to 75th percentile). The highest reported investigator i salary was $73,923. There are 3 employees at Dallas County with the job title investigator i.