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Sheriff Directory

Sheriff Lemma

Sheriff Dennis M. Lemma (R)

Staff contact for: Officers and Board of Directors
Seminole | View All Sheriffs

County Details

  • County Seat: Sanford
  • Population: 470,856


BS degree, criminal justice administration, Columbia College; MA degree, administrative leadership, University of Oklahoma; FBI National Academy graduate; FDLE Chief Executive Institute, graduate.


U.S. Marine Corps.


Seminole County Sheriff’s Office, 1992-present, rose in rank to chief deputy; elected Sheriff of Seminole County, 2016; and re-elected in 2020.

Honors and Affiliations

In January 2019, selected as chair of Florida Attorney General Ashley Moody’s Transition Advisory Committee Working Group on Opioid Abuse; July 2019, named as chair by Florida First Lady Casey DeSantis for her drug abuse prevention panel; August 2019, appointed by Florida Attorney General Ashley Moody to the Statewide Task Force on Opioid Abuse; June 2020, elected to the Major County Sheriffs of America Executive Board, representing Region 4, which includes all Eastern states; July 2020, nominated to serve as Vice-Chair on the Executive Board for the Florida Sheriffs Association.

Quote from Your Sheriff

“We believe that crime is a symptom of another problem, and we have to treat and address the underlying conditions that lead people down the path to commit crimes in the first place.”
~ Sheriff Dennis M. Lemma