US Census Bureau - Buena Vista County , Iowa - Provides population, demographic, and housing information. The Political Graveyard - Lists politicians born and buried in the county, as well as cemeteries and memorial sites of politicians. Buena Vista County Historical Society - Dedicated to collect and protect local artifacts. Includes details about museum exhibits and donation categories. Located in Storm Lake. Buena Vista County Iowa Democratic Committee - Official web site. Includes a list of candidates, biographical information, news and links. Wikipedia: Buena Vista County, Iowa - Encyclopedia article features geography, demographics and links to cities and towns. Contains maps. National Register of Historical Places - Buena Vista County - Provides a listing of properties, districts, and landmarks in the county. Includes architectural style and period of significance.