Lodi AVA is an American Viticultural Area located in the Central Valley of California, at the northern edge of the San Joaquin Valley east of San Francisco Bay. The AVA gained approval as a designated wine growing area in 1986 and includes 551,000 acres (223,000 ha) of which 103,000 acres (42,000 ha) are currently planted with wine grapes. In 2002, the area included in the AVA was expanded by 93,500 acres (37,800 ha) (10,840 acres (4,390 ha) planted) along the southern and western portions of the original AVA boundaries in San Joaquin County. The appellation includes land in southern Sacramento County and northern San Joaquin County. It is bounded on the west by Interstate Highway 5 and to the east by the political borders for the adjacent El Dorado, Amador, and Calaveras Counties.