Clinton County Department of Probation/ATI
David M. Marcoux, Director
34 Court Street
Plattsburgh, NY 12901
Main Telephone: (518) 565-4640
Fax: (518) 565-4651
Office Hours: 8 AM to 5 PM
Intake Hours: 8:30 AM to 12 PM / 1 PM to 4 PM
Email Address:


The mission of the Clinton County Department of Probation/Alternatives to Incarceration (ATI) is to enhance community safety by providing supervision of adult and juvenile offenders.  This is accomplished by serving as a conduit for positive change, overseeing the compliance of probationers mandated with an alternative to incarceration sentence and by compassionately addressing the needs of and providing support to victims of crime.  We accomplish our mission through a full range of supervision services, which join with various community based and local service agencies designed to provide innovative programming to prevent crime, re-victimization and delinquency. 

Directions to the Department:
I-87 North to Exit 38S (Rt-22S, Plattsburgh).  Continue on Route 22-S (North Catherine Street).  Turn left onto Route 3 (Cornelia Street).  Turn right onto US-9 (Margaret Street).  Turn right onto Court Street.  Probation Department entrance is the first right on Court Street.
Employment Opportunities
Probations Most Wanted

Additional Links

American Probation and Parole Association

American Probation & Parole Association  


NYS Probation Officer’s Association

Clinton County Sheriff's Department

Sex Offender Offenderwatch