Broomes Island is a small waterfront community and census-designated place (CDP) located at the southern terminus of MD 264 in Calvert County, Maryland, United States, on the Patuxent River.

[4] After residents contacted US Senator Barbara Mikulski about the proposed closure, the postal service decided against closing the post office.

[5] Broomes Island is located near the mouth of St. Leonard Creek, the largest tributary of the Patuxent River entirely inside Calvert County.

Each May, former Maryland State Senator Bernie Fowler has held a "wade-in" at Broomes Island, where he and others would walk into the waters of the Patuxent River until their feet were no longer visible.

Fowler started the annual tradition to bring awareness to the water clarity levels of the Patuxent.