Winchester is an unincorporated town and census-designated place (CDP) in Clark County, Nevada, United States that contains part of the Las Vegas Strip. It is one of a number of CDPs in the unincorporated urbanized area directly south of Las Vegas. The population was 36,403 at the 2020 census. It is governed by the Clark County Commission with advice from the Winchester Town Advisory Board. "Winchester, NV" does not appear in postal addresses; the United States Postal Service has assigned "Las Vegas, NV" as the place name for the ZIP codes containing Winchester.