Bellaire is a city in southwestern Harris County, Texas, United States, within the Houston–Sugar Land–Baytown metropolitan area. As of the 2020 U.S. census, the city population was 17,202. It is surrounded by the cities of Houston and West University Place. Bellaire is known as the "City of Homes", owing to its mostly residential character; but it has offices along the I-610 Loop within the city limits.