Jackson (formerly, Botilleas, Botilleas Spring, Bottileas, Bottle Spring, and Botellas) is a city in and the county seat of Amador County, California. Its population was 4,651 at the 2010 census, up from 3,989 at the 2000 census. The city is accessible by both State Route 49 and State Route 88.

According to the United States Census Bureau, the city has a total area of 3.7 square miles (9.6 km), all of it land. Jackson Creek traverses the city. Alluvial soils such as Pardee cobbly loam is found throughout the Jackson area.

The Place was inhabited by the Northern Sierra Indians, who occupied areas along creeks, spring, and seep areas, including long-lasting and seasonal drainages, flat ridges, and terraces. Therefore, areas along watercourses are considered likely locations for archaic cultural resources. Permanent villages were usually placed upon elevations above seasonal flood levels. Surrounding areas were used for hunting and seed, acorn, and grass gathering.

Jackson, named after Colonel Alden Jackson, was founded in 1848 regarding a year-round spring. Settlement of the region by American pioneers was stimulated by the discovery of gold in the Sierra foothills in tab to 1848. The pact was named for a local lawyer who was liked by miners named Alden Appola Moore Jackson. Although Amador County was an important mining center, its county seat of Jackson was not typical of the in advance gold camps. The camp grew quickly, as moreover being a popular mining spot, it was after that a convenient stopping place upon the road from Sacramento to the Southern Mines. The camp became an important supply and transportation middle for the against towns, and by 1850, its population had reached an estimated 1,500. Jackson grew first as a watering hole for cattle, then as one of the primeval and most durable of the mom lode’s hard stone mining areas. In 1853, Jackson became the county seat of newly formed Amador County, California. Previously, from 1851 to 1852, it had been the county seat of Calaveras County.