Today 21220, Middle River MD is count around 69 homes for sale at current average listing price of $510,218. Nearby neighborhoods of 21220 are Greenleigh At Crossroads, Creekside Estates, Bowleys Quarters, Harewood Park, Hawthorne, Long Beach Estates, Twin River Beach, Carrollwood Manor, Cunninghill Cove, Golden Acres. Most of 21220 homes are 4 bedrooms with 3 bathrooms.