Gilmer County is a county located in the State of West Virginia. As of the 2010 census, the population was 8,693. Its county seat is Glenville. The county was formed in 1845 from parts of Lewis and Kanawha Counties, and named for Thomas Walker Gilmer, Governor of Virginia from 1840 to 1841. Gilmer was later a representative in the United States Congress and Secretary of the Navy in President John Tyler's cabinet.
Cedar Creek State Park offers camping, hunting, fishing and hiking. The West Virginia State Folk Festival is held each June. Glenville State College has a full community activity center, a state-of-the-art library, and a complete collection of hand-carved, West Virginia–native birds on public display. The Gilmer County Recreation Center Complex includes a small golf course, a convention / reunion hall, and bunk houses. Gilmer County is home to ten nationally registered historic landmarks, the Cedar Creek Backway, and the annual West Virginia Folk Festival. Media outlets for the community include The Glenville Democrat and The Glenville Pathfinder, the county's two newspapers, and Two-Lane Livin, a regional magazine. The Federal Correction Institution - Gilmer, located on Route 5, is a medium security prison.
Gilmer County is also the site of Federal Correctional Institution, Gilmer, a federal medium security prison for men and the county's largest employer.
As of 2014, Gilmer County still has only one traffic light. It is located in the city of Glenville.