Some Facts About Oak Hill
Oak Hill is a growing and prosperous bedroom community bounded by the boundaries of zip code 20171. It is located in western Fairfax County in Virginia. Oak Hill was named when the Oak Hill post office was opened on McLearen Road in 1998. The community sits south of the town of Herndon, north of Chantilly, southwest of Reston, west of Oakton and southeast of Washington Dulles International Airport. Oak Hill is almost entirely contained within Fairfax County.

At the time of the 2010 Census, Oak Hill had 45,887 residents. According to the census Oak Hill is about 61% white, 1% African American, and 30% Asian. The median household income is $102,577. The age of the average resident is 34.6 years. There are 16,256 households and 2.82 people per household. Oak Hill has 1213 businesses. 32,590 people are employed in Oak Hill.

Although unincorporated the community has its name because the Oak Hill (or OakHill) farm off West Ox Road was the first known farm in the area. The farm dates back to the late 1700s. It wasn’t until the 1970s that the community began to turn from a farming community into a bedroom community. It was during that time that the Fox Mill and Franklin Farm communities were developed. Today Oak Hill is largely developed.