95633 is a zip code in Yuba County in the U.S. state of California. It is located in the northern part of Yuba County in the foothills of the Sierra Nevada. The area is mostly rural, with rolling hills and small towns. The population of the zip code 95633 is roughly 15,000 people. The largest town in the area is Browns Valley, located on the western border of the zip code. The area is a known agricultural hub, with many of the local farms producing rice, fruits, nuts, and grapes. Other attractions in the area include several lakes and reservoirs, parks, hiking trails, and wineries.