New Baltimore, Virginia is a census-designated place (CDP) in eastern Fauquier County, Virginia, United States. The population as of the 2010 Census was 8,119. Although the CDP has existed since the early 19th century, it has had its most significant growth since the 1980s. It is the portion of Fauquier County with the easiest access to Washington, DC and, as a result, many people who live in New Baltimore commute into DC. Other major communities close to New Baltimore are Warrenton, Gainesville/Haymarket area, and Manassas. The area officially considered to be New Baltimore expanded significantly in 2006 with Fauquier County's designation of service districts, of which New Baltimore is one.