Investigator salary at Nassau

The average investigator salary at Nassau was $135,218 , which is 71 percent higher than the average salary for this job in New York, and 107 percent higher than the national average for this job . Investigator salaries at Nassau typically range from $128,622 to $141,814 (25th to 75th percentile). The highest reported investigator salary was $141,814. There are 2 employees at Nassau with the job title investigator.