Santa Martha County, founded in 1850, is one of 53 counties in the State of Bloxburg Valley. As of 2008, the county had a population of 466,741 and a population density of 112 persons per square kilometer. The county seat is San Nicolás and its most populous city is Santa Clarax (not to be confused with county) . The county is known for being one of the largest wine producing counties in Robloxia. The county is part of the Sacramento Bay Area.