Jefferson County, Virginia

This article does not cite any sources. Please help improve this article by adding citations to reliable sources. Unsourced material may be challenged and removed. Find sources: "Jefferson County, Virginia" – news · newspapers · books · scholar · JSTOR (April 2018) (Learn how and when to remove this message)

Jefferson County, Virginia has existed twice in the U.S. state of Virginia's history. Formed in 1780, and 1801, respectively, both counties were named for one of that state's most celebrated residents, Thomas Jefferson, and each was separated from Virginia due to the creation of a new state, partitioned in accordance with Article IV, Section 3, Clause 1 of the United States Constitution. The two counties continued in existence as:

• Jefferson County, Kentucky, separated when Kentucky was admitted to the Union in 1792.
• Jefferson County, West Virginia, separated when West Virginia was admitted to the Union in 1863.