Potomac Maryland Catholic Churches
Potomac Maryland has a zip code of 20859. The current date and time in Potomac is October 8, 2026, 7:25 am and it has a population of 0 people. Potomac Maryland lies at an elevation of 508 feet.
Our Lady Of Mercy Parish
9200 Kentsdale Dr
Potomac Maryland, 20859
Phone: (301) 365-1415
Fax: (301) 365-3104
St Raphael Parish
1592 Kimblewick Rd
Potomac Maryland, 20859
Phone: (301) 762-2143
Fax: (301) 762-0719
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