Geiger Key is an island in the lower Florida Keys about 5 miles (8.0 km) east of Key West. It is located to the south of, and bridged to, Big Coppitt Key via Boca Chica Road (County Road 941) at approximately mile marker 11 on U.S. 1 (or the Overseas Highway). It is home to the small trailer park community of Tamarac, Geiger Key Pub & Grill and Geiger Key Marina.