Median annual earnings of probation officers and correctional treatment specialists in May 2004 were $39,600. The middle 50 percent earned between $31,500 and $52,100. The lowest 10 percent earned less than $26,310, and the highest 10 percent earned more than $66,660. In May 2004, median annual earnings for probation officers and correctional treatment specialists employed in State government were $39,810; those employed in local government earned $40,560. Higher wages tend to be found in urban areas.