Sergeant - Detective salary at Ada County

The average sergeant - detective salary at Ada County was $132,247 , which is 34 percent higher than the average salary for this job in Idaho, and 32 percent higher than the national average for this job . Sergeant - Detective salaries at Ada County typically range from $131,685 to $132,808 (25th to 75th percentile). The highest reported sergeant - detective salary was $132,808. There are 4 employees at Ada County with the job title sergeant - detective.