About Pleasanton

Pleasanton is a city in Alameda County, California, incorporated in 1894. It is a suburb in the San Francisco Bay Area located about 25 miles (40 km) east of Oakland, and 6 miles (9.7 km) west of Livermore. The population was 70,285 at the 2010 census. In 2005 and 2007, Pleasanton was ranked the wealthiest middle-sized city in the United States by the Census Bureau. Pleasanton is home to the headquarters of Safeway Inc., Blackhawk Network, and Ross Stores. Although Oakland is the Alameda County seat, a few county offices and a courthouse are located in Pleasanton. Additionally, the main county jail is in the neighboring city of Dublin. The Alameda County Fairgrounds are located in Pleasanton and are held during the last week of June and the first week of July. Pleasanton Ridge Regional Park is located on the west side of town.

Before the establishment of Pleasanton, in the 1850s, an earlier settlement, called Alisal was there. It was located on the lands of the Rancho Santa Rita near the site of an Indian ranchera, around the Francisco Solano Alviso Adobe, called El Alisal (The Sycamores), one of the earliest houses built in the valley in 1844. It is still standing and serves as the centerpiece of the Alviso Adobe Community Park. Alisal, nicknamed "The Most Desperate Town in the West", was one of the settlements located along La Vereda del Monte that was a haunt and refuge of bandits and desperados in the era following the beginning of the California Gold Rush. Main Street shootouts were not uncommon. Banditos such as Claudio Feliz and Joaquin Murrieta would ambush prospectors on their way back from the gold rush fields and then seek refuge in Alisal. In the 1860s Procopio, Narciso Bojorques and others took refuge there.

Pleasanton is located on the Rancho Valle de San José Mexican land grant and was founded by John W. Kottinger, an Alameda County justice of the peace, and named after his friend, Union army cavalry Major General Alfred Pleasonton. A typographical error by a U.S. Postal Service employee apparently led to the current spelling.

Because of the preservation of Pleasanton's historic downtown area, many examples of architectural styles dating back to the mid-19th century exist. Buildings in Gothic Revival, Pioneer, Italianate, Commercial Italianate, Colonial Revival, and Queen Anne styles can be found within walking distance of each other.