Answer by taking a quote from the following article:

The Powhatan People (sometimes Powhatans) (also spelled Powatan) are an Indigenous group traditionally from Virginia. In some instances, The Powhatan, may refer to one of the leaders of the people. This is most commonly the case in historical writings by the English. The Powhatans have also been known as Virginia Algonquians, as the Powhatan language is an eastern-Algonquian language also known as Virginia Algonquian.

The name "Powhatan" (also transcribed by Strachey as Paqwachowng) is the name of the native village or town of Wahunsunacawh. The title "Chief" or "King" Powhatan, used by the English is believed to have been derived from the name of this site. Although the specific site of his home village is unknown, in modern times the Powhatan Hill neighborhood in the East End portion of the modern-day city of Richmond, Virginia is thought by many to be in the general vicinity of the original village. Tree Hill Farm, which is situated in nearby Henrico County a short distance to the east, is also considered as the possible site.  "Powhatan" was also the name used by the natives to refer to the river where the town sat at the head of navigation. The English colonists chose to name it for their own leader, King James I. The English colonists named many features in the early years of the Virginia Colony in honor of the king, as well as for his three children, Elizabeth, Henry, and Charles.  Although portions of Virginia's longest river upstream from Columbia were much later named for Queen Anne of Great Britain, in modern times, it is called the James River. It forms at the confluence of the Jackson and Cowpasture rivers near the present-day town of Clifton Forge, flowing east to Hampton Roads. (The Rivanna River, a tributary of the James River, and Fluvanna County, were named in reference to Queen Anne). The only water body in Virginia to retain a name related to the Powhatan peoples is Powhatan Creek, located in James City County near Williamsburg.  Powhatan County and its county seat at Powhatan, Virginia were honorific names established years later, in locations west of the area populated by the Powhatan peoples. The county was formed in May 1777.

WHICH STATE IN POWHATAN?
Virginia