California State University, East Bay is a public university in Hayward, California. The university is part of the California State University system and offers 136 undergraduate and 60 post-baccalaureate areas of study. Founded in 1957, California State University, East Bay has a student body of almost 14,000. As of Fall 2021, it had 863 faculty, of whom 358 (41%) were on the tenure track. The university's largest and oldest college campus is located in Hayward, with additional centers in the nearby cities of Oakland and Concord.

Hayward is a city located in Alameda County, California, United States, in the East Bay subregion of the San Francisco Bay Area. With a population of 162,954 as of 2020, Hayward is the sixth largest city in the Bay Area, and the third largest in Alameda County. Hayward was ranked as the 34th most populous municipality in California. It is included in the San Francisco–Oakland–San Jose Metropolitan Statistical Area by the US Census. It is located primarily between Castro Valley, San Leandro and Union City, and lies at the eastern terminus of the San Mateo–Hayward Bridge. The city was devastated early in its history by the 1868 Hayward earthquake. From the early 20th century until the beginning of the 1980s, Hayward's economy was dominated by its now defunct food canning and salt production industries.