Annapolis City

 Website: Phone: (410) 216-9167

Anne Arundel County

 Cooling Centers: Phone: (410) 222-0604

Baltimore City 

Cooling Centers: 
Phone: (410) 396-6188

Calvert County

 Website: Phone: (410) 535-1600

Charles County

 Website: Phone: (301) 609-3465

Frederick County 

Website: Phone: (301) 600-6791

Howard County

 Website: Phone: (410) 313-6030

Montgomery County 

Cooling Centers: Phone: (240) 777-2300

Prince George’s County

 Cooling Centers: 
Phone: (301) 883-3308

St. Mary’s County

 Website: Phone: (301) 475-4200