 King George County is located on the Northern Neck and is bounded on the north by the Potomac River, which lies in Charles County, Maryland.It is bounded on the south by the Rappahannock River across which lie Caroline and Essex Counties; on the east by Westmoreland County and on the west by Stafford County.As of the census of 2010, there were 23,584 people, 9,411 households, and 4,525 families residing in the county.