Koppers Co., Inc. Superfund Site

Oroville (Oro, Spanish for "Gold" and Ville, French for "town") is the county seat of Butte County, California, United States. The population of the city was 15,506 at the 2010 census, up from 13,004 in the 2000 census. Following the 2018 Camp Fire that destroyed much of the town of Paradise, the population of Oroville increased as many people who lost their homes relocated to nearby Oroville. In 2020, the 2020 census recorded the population of Oroville at 20,042. Oroville is considered the gateway to Lake Oroville and Feather River recreational areas. The Berry Creek Rancheria of Maidu Indians of California is headquartered in Oroville.Oroville is located adjacent to State Route 70, and is in close proximity to State Route 99, which connects Butte County with Interstate 5. The city of Chico is located about 23 miles (38 kilometers) northwest of the city, and the state capital of Sacramento lies around 70 miles (112 kilometers) to the south.Oroville's nickname is the "City of Gold", which is essentially the Spanish name of the city in English. Oroville has also been declared a Tree City USA for 41 years by the National Arbor Day Foundation.

Oroville is a former train station in Oroville, California. The building was constructed in 1910 as the town's stop along the Western Pacific Railroad Feather River Route. The railroad discontinued their passenger trains in 1970, leaving Oroville without rail services. The Chico Electric Railway had built an electric interurban railway line to the town with a route down High Street and its own depot two blocks west of the Western Pacific's. The station was converted to a restaurant after being sold by the WP. A steak house opened in 1977, called The Depot, which would go on to be converted to a brewpub in 2007: Western Pacific Brewing and Dining. By 2017, with the building up for sale, the Butte County Association of Governments had plans to redevelop the facility as a commuter bus station, but were unable to secure funding.

Oroville High School is a public high school located in the rural north valley at the base of the Sierra Nevada foothills, about seventy miles north of Sacramento, California, United States. Founded in 1892, Oroville High School is the oldest high school in the district. The campus covers 4 acres (16,000 m2). Of the 46 classrooms on campus, five have full functioning computer labs. The campus also has two computer labs and a library. In 2003, a school bond for $8,523,932 was passed, allowing for the construction of a new library, a science wing, and an industrial technology center. These funds were intended to convert older buildings on campus to an art building, a center for performing arts, and a more modern gymnasium. Despite the money set aside, all of these projects were shelved due to the extreme financial situation of the school district.

Yuman is a former Maidu settlement in Butte County, California. It lay at an elevation of 171 feet (52 m). Its location is currently within the city limits of Oroville.

The Oroville Carnegie Library, at 1675 Montgomery St. in Oroville, California, was built in 1912. It was listed on the National Register of Historic Places in 2007.It is a two-story Carnegie library designed by architect William Henry Weeks in Classical Revival style.It is now the Butte County Public Law Library

The Oroville Chinese Temple (列聖宮) is a Chinese folk religious temple built in 1863 in Oroville, California. The temple is now owned by the City of Oroville and open to the public as a museum, and it also continues to be used occasionally for worship.

Oroville Hospital provides health coverage to the City of Oroville. It is the main hospital for the city of Oroville, California. The building is the City of Oroville in Butte County. It is also a Level III trauma care center. The hospital was founded in 1962 and has grown from a modest community hospital supported by a small staff of doctors into a 133-bed acute care facility specializing in a broad range of inpatient and outpatient services, including multiple physician practices. Oroville Hospital is a private, non-profit corporation serving the Oroville area and Butte County by OroHealth Corporation.

Lynchburg is a former settlement in Butte County, California, United States. It was located 1 mile (1.6 km) southeast of Oroville. Lynchburg was founded in 1848 by and named for George H. Lynch, a local storeowner. Wooden buildings were erected in the area and the population grew. Lynchburg emerged as a competitor of Ophir City, and by 1855 had outgrown its rival settlement. Once a lively place, Lynchburg began to wither by the mid-1850s.

KARC-LP is a radio station broadcasting an educational religious format on 96.3 FM out of Oroville, California. It is licensed by Calvary Chapel Oroville and it went on the air on July 15, 2015. with a range of about a mile and one-fifth. In early 2017, its application as a low power FM station for an FCC license to cover construction was accepted. However, as of September, 2023, it was listed as active but delinquent because it had not maintained its registration with the state.

The Thompson Fire was a fast-moving wildfire burning near the community of Oroville in Butte County, California, during the 2024 California wildfire season.

South Oroville is a census-designated place (CDP) in Butte County, California, United States. The population was 5,742 at the 2010 census, down from 7,695 at the 2000 census. For all practical purposes, South Oroville is tied to Oroville proper. South Oroville contains a negligible number of businesses, and all residents are dependent on the commercial centers of Oroville, and sometimes Chico if they choose. In fact, there is no clear divide between South Oroville and the Oroville city limits. This also applies to Thermalito, Oroville East, and Palermo. Las Plumas High School is located in South Oroville, and most high school students go to school there.

Bagdad is a former settlement and mining camp in Butte County, California, United States. It was located on the Feather River 2 miles (3.2 km) downstream from Oroville. It was located at a bluff and its name later changed to Ophir, then became part of Oroville. Gold was discovered at Bagdad by A.G. Simpson. Several mines operated at Bagdad, including the War Eagle Mine and the Orange Blossom Mines.