Records of mosquito species occurring in Lubbock County, TX, have not been reported since 1970. An updated mosquito survey was conducted as part of the West Nile virus surveillance program conducted throughout Lubbock County, TX from July 2002 through December 2004. A large number of species not previously recorded occurring in this area were collected, whereas several species historically occurring in the area were not collected during this survey. Based upon the data from this study, dominant species in Lubbock County include Aedes sollicitans, Aedes vexans, and Culex tarsalis.