Today 21045, Columbia MD is count around 34 homes for sale at current average listing price of $522,426. Nearby neighborhoods of 21045 are None Available, Village Of Long Reach, Village Of Owen Brown, Oakland Mills, Columbia Park, Hopewell, Owen Brown Estates, Villas At Snowden Overlook, Bristol Green, Dalton Springs. Most of 21045 homes are 3 bedrooms with 3 bathrooms.