Pleasanton is a city in Alameda County, California, situated in the Amador Valley within the East Bay portion of the San Francisco Bay Area. It is characterized as an affluent suburb; the U.S. Census Bureau reported a population of 79,871 at the 2020 census, and in 2005 and 2007 ranked it the wealthiest mid-sized city in the country by median household income.
The city neighbors Hayward, Livermore, and Dublin, California, and lies along the route of the historic First transcontinental railroad. Much of its territory is drained by the Arroyo Valle and Arroyo Mocho watercourses.
The text does not connect Pleasanton to events in the Zodiac Killer case; this page is included as a geographic reference entity. The article notes Pleasanton hosts numerous corporate headquarters (Safeway, Workday, Veeva Systems, and others) and the Alameda County Fairgrounds, and that its public schools belong largely to the Pleasanton Unified School District.
Note on relevance
No direct link to the Zodiac Killer case is established in the source text. The page exists to support possible geographic or biographical cross-references within the wiki.