Montgomery County Police Department, Primary law enforcement agency of Montgomery County, Maryland, United States

Montgomery County Police Department is the main law enforcement agency for Montgomery County, located in Gaithersburg, Maryland. The headquarters building at Edison Park Drive serves as the central administrative hub from which officers manage multiple districts across the region and oversee divisions including traffic enforcement, criminal investigations, and crisis response operations.

Established in 1922, the department is one of Maryland's earliest police forces and has expanded significantly over the decades. Major shifts occurred in leadership diversity and community engagement practices, particularly following initiatives implemented since the 1990s to improve service and accountability.

The non-emergency number for general inquiries is 301-279-8000, while 911 handles emergencies. The headquarters at Edison Park Drive is accessible during regular business hours, and information can be requested through the Maryland Public Information Act or via the department's official social media channels and website.

The department has been involved in high-profile investigations such as the D.C. sniper case and has collaborated with other agencies on national matters. This history of participation in major cases demonstrates the scope and capability of the local force beyond typical county operations.

• Location: Gaithersburg
• Inception: July 4, 1922
• Elevation above the sea: 108 m
• Address: Public Safety Headquarters, 100 Edison Park Dr, Gaithersburg, MD 20878
• Phone: [phone]
• Website: https://montgomerycountymd.gov/pol
• GPS coordinates: 39.11304,-77.23636
• Latest update: February 17, 2026 00:40