- Modesto is a city located in the Central Valley of California. It is the county seat of Stanislaus County and has a population of approximately 215,000 people as of 2021. Modesto is known for its agricultural industry, including the production of almonds, walnuts, and dairy products. The city also has a rich cultural and arts scene, with various theaters, galleries, and museums. Modesto is home to several annual events and festivals, such as the Modesto Art and Wine Walk and the Modesto Marathon. The city also offers outdoor recreational activities, including parks, trails, and golf courses.