Today 20659, Mechanicsville MD is count around 20 homes for sale at current average listing price of $572,314. Nearby neighborhoods of 20659 are None Available, Beverly Estates, Country Lakes, Grandview Haven Ii, Helen Estates, Lockes Crossing, Persimmon Hills, Shamrock Glenn Estates. Most of 20659 homes are 4 bedrooms with 3 bathrooms.