Montgomery County Constable Precinct 3 is a law enforcement agency serving residents and communities in Montgomery County, Texas. Led by Constable Ryan Gable, who took office on August 3, 2012, the office describes its mission as protecting the community through around-the-clock policing and a strong emphasis on community-based service. Its staff and units work together to support public safety and security across the precinct.

The office includes Patrol, Civil, Criminal Investigations, and Reserve divisions, among other units. Residents can use its online services to request copies of police or accident reports and submit concerns about their community. The website also provides safety information, department details, training resources, and information for people interested in applying to become deputy constables. Public information requests are available online, and the office provides contacts for general inquiries and news media. For emergencies, residents are directed to call 911; non-emergency and main office phone numbers are also listed. The precinct presents itself as an accessible, full-service police agency and invites residents to connect with its staff.