Today 21220, Middle River MD is count around 42 homes for sale at current average listing price of $510,130. Nearby neighborhoods of 21220 are Greenleigh At Crossroads, Bowleys Quarters, Creekside Estates, Middle River, Cunninghill Cove, Harewood Park, Bird River Beach, Carroll Crest, Carrollwood Manor, Homeland. Most of 21220 homes are 4 bedrooms with 3 bathrooms.