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LEONARDTOWN, MD (May 18, 2026) – The St. Mary’s County Health Department (SMCHD) will be closed on Monday, May 25, 2026, for the Memorial Day holiday. This includes the main office in Leonardtown and all satellite offices. Normal operations will resume on Tuesday, May 26, 2026.
Learn more about SMCHD programs, services, and hours of operation at smchd.org.
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Mon – Fri: 8:00 am – 5:00 pm
Mon – Fri: 8:30 am – 4:00 pm
Mon & Thurs: 7:00 am – 2:00 pm
Tues, Wed, & Fri: 7:00 am – 4:30 pm
A call center has been opened for St. Mary’s County residents needing more information about measles. Community members can call the center at 240-735-8288 Monday – Friday from 7:00 a.m. – 5:00 p.m.