Glenbrook is a census-designated place on the east shore of Lake Tahoe in Douglas County, Nevada, United States. The population was 215 at the 2010 census.The community is named after the Glenbrook House hotel and is at an elevation of 6,250 feet. Glenbrook is included in the Gardnerville Ranchos micropolitan statistical area.As the oldest settlement on Lake Tahoe, it played a significant part of Nevada's statehood as the main supplier of timber to the Comstock Lode and Virginia City. The first settlers of the valley, which included Captain Augustus W. Pray, arrived in 1860. It was named for its two primary geographic features — Glen, a secluded valley, and Brook, a small stream.Glenbrook is located on the east shore of Lake Tahoe, due west of Carson City. This small community is about 10 mi south of Incline Village, and about 12 mi north of South Lake Tahoe, California. According to the United States Census Bureau, the CDP has a total area of 4.0 square miles, of which 3.