St. Margaret's is a suburb of Annapolis in Anne Arundel County, Maryland, United States on the scenic Broadneck Peninsula.
To the east of Annapolis, on the north shore of the Severn River, west of Whitehall Creek at Whitehall Bay and south of US Route 50 lies the St. Margaret's area, including the communities between Ridout, Burley, Minnow and Mill Creeks as well as along St. Margarets Road, Maryland Route 179.
To the southeast of Mill Creek are the communities of Brown's Woods Mulberry Hills, and Round View.
[2] Located at the end of Forest Beach Road on Mill Creek is Cantler's Riverside Inn, the most popular restaurant in Maryland.
[4] On both sides of Ritchie Highway near the Maryland World War II Memorial is Pendennis Mount.