Oakville is located in northwest California. Oakville is part of Napa County. Oakville has 1.36 square miles of land area and has no water area. As of 2010-2014, the total Oakville population is 59. Oakville median household income is $88,333 in 2006-2010. On average, the public school district that covers Oakville is better than the state average in quality. The Oakville area code is 707.