Environmental Investigator salary at Johnson County

The average environmental investigator salary at Johnson County was $69,490 , which is 13 percent higher than the average salary for this job in Texas, and 13 percent higher than the national average for this job . Environmental Investigator salaries at Johnson County typically range from $68,840 to $70,140 (25th to 75th percentile). The highest reported environmental investigator salary was $70,140. There are 2 employees at Johnson County with the job title environmental investigator.