The overall value of land for sale in Buena Vista County, Iowa, recently on Land.com was almost $10 million. This represents approximately 1,000 acres of land and rural real estate for sale in Buena Vista County. Buena Vista County ranks 72nd out of 99 counties in the Hawkeye State for the combined amount of land currently advertised for sale. Of all farms, ranches, and rural real estate for sale in Buena Vista County, Storm Lake featured the most land for sale. Buena Vista County is Iowa's 33rd biggest county (580 square miles). It's located in the Western Iowa region of Iowa.