Today 20171, Herndon VA is count around 59 homes for sale at current average listing price of $857,063. Nearby neighborhoods of 20171 are Arpina Valley, None Available, Bryson At Woodland Park, Mcnair Farms West, Metropark At Arrowbrook, Dulles Technology, Franklin Farm, Sycamore Ridge, Waterview At Woodland Park, Woodland Park. Most of 20171 homes are 3 bedrooms with 3 bathrooms.