The Major County Sheriffs' Association (MCSA) is a professional law enforcement association of elected sheriffs representing counties or parishes with 500,000 population or more. We are dedicated to preserving the highest integrity in law enforcement and the elected Office of the Sheriff. Our membership represents over 100 million Americans.

MCSA works to promote a greater understanding of law enforcement strategies to address futures problems and identify law enforcement challenges facing the members of our organization. We are committed to advancing legislative issues that will enhance the safety of our communities.

MCSA also aggressively pursues the development of innovative education along with prevention and enforcement strategies and programs.

We believe that law enforcement and criminal justice organizations benefit greatly by having a forum in which to share ideas, concepts and resources. The MCSA facilitates that process by serving as a law enforcement information gathering resource.

The MCSA is available to provide technical assistance in conjunction with the National Sheriffs' Association, the Major Cities Chiefs, the Federal Bureau of Investigation Training Division, the National Executive Institute and other private or public research entities.

We cordially invite you to contact any MCSA officer for additional information.


 John Aubrey has a long history of public safety and military service. He served in numerous positions rising through the ranks of his 28 years of service with the Louisville Police Department retiring as the acting Chief of Police.  Elected Sheriff in 1999, John is now in his fifth term as the longest serving Sheriff in the history of Jefferson County Kentucky.

Major County
Sheriffs' Association
1450 Duke Street
Alexandria, VA

Toll Free:
(855) MAJ-CNTY

(202) 237-2001



Meeting of the MCSA Executive Board meeting with invited guests from our Platinum Corporate Partner, Niche RMS just prior to the summer conference in Baltimore, MD.


Executive Board meeting with the new Attorney General Loretta Lynch prior to her remarks to the conference attendees. The MCSA submitted a letter of support for AG Lynch as her nomination was considered and approved by the US Senate. She, and her staff, have committed to ongoing dialog with the MCSA concerning issues of concern to Sheriffs and the communities they serve.


Members of the MCSA who attended the summer conference in Baltimore, MD. In addition to presentations by Attorney General Lynch, attendee also heard updated information from Deputy Secretary Ali Myorkas, DHS regarding immigration policy; Undersecretary General Frank Taylor, DHS and Assistant Director Michael Steinbach, FBI discussed the terrorism threat to the US and Sue Rahr, King County Sheriff (Ret.) who was a panelist on the President’s Taskforce on 21st Century Policing. Other presentations were provided relating to Customs and Border Protection, cyber threats, COPS Grants, mental illness and relevant legislative issues. Members who attended also passed amendments to the By-Laws relating to the leadership of the MCSA and elected officers who will begin to serve the association beginning January 2016.


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