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Oroville, California
Historic Downtown Oroville
Historic Downtown Oroville
Official seal of Oroville, California
"City of Gold"
Location of Oroville in Butte County, California
Location of Oroville in Butte County, California
Oroville, California is located in the United States
Oroville, California
Oroville, California
Location in the United States
Country United States
State California
County Butte
Incorporated January 3, 1906
 • City 13.85 sq mi (35.88 km2)
 • Land 13.83 sq mi (35.83 km2)
 • Water 0.02 sq mi (0.05 km2)  0.14%
167 ft (51 m)
 • City 15,546
 • Estimate 
 • Density 1,498.99/sq mi (578.75/km2)
 • Metro
48,000 (estimated)
Time zone UTC-8 (PST)
 • Summer (DST) UTC-7 (PDT)
ZIP codes
95940, 95965, 95966
Area code(s) 530
FIPS code 06-54386
GNIS feature IDs 277570, 2411337

Oroville 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 2019, the California Department of Finance estimated the population of Oroville is 20,737.

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", basically just 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 situated at the base of the foothills on the banks of the Feather River where it flows out of the Sierra Nevada onto the flat floor of the Sacramento Valley. It was established as the head of navigation on the Feather River to supply gold miners during the California Gold Rush.

The town was originally called "Ophir City", but the name was changed to Oroville when the first post office opened in 1854 ("oro" is "gold" in Spanish). The City Of Oroville was incorporated on January 3, 1906.

Gold was found at Bidwell Bar, one of the first gold mining sites in California, bringing thousands of prospectors to the Oroville area seeking riches. Now inundated by the waters of enormous Lake Oroville, which was filled in 1968, Bidwell Bar is memorialized by the Bidwell Bar Bridge, an original remnant from the area and the first suspension bridge in California (California Historical Landmark #314). In the early 20th century the Western Pacific Railroad completed construction of the all-weather Feather River Canyon route through the Sierra Nevadas giving it the nickname of "The Feather River Route". Oroville would serve as an important stop for the famous California Zephyr during its 20-year run. In 1983, this became a part of the Union Pacific Railroad as their Feather River Canyon Subdivision. A major highway, State Route 70, roughly parallels the railroad line winding through the canyon.

Orovill chinese temple 2
Oroville Chinese Temple

The Chinese Temple (CHL #770 and listed on the National Register of Historic Places) is another monument to Oroville's storied past. Chinese laborers from the pioneer era established the Temple as a place of worship for followers of Chinese Popular Religion and the three major Chinese religions: Taoism, Buddhism, and Confucianism. The Chinese Temple and Garden, as it is now called, has an extensive collection of artifacts and a serene garden to enjoy.

The olive-canning industry was founded in Oroville by Freda Ehmann, the "mother of ripe olives." She built a large cannery in Oroville, and by 1900 was the president of the world's largest canned olive factory. Ehmann was a believer in women's suffrage and a friend of Susan B. Anthony

Ishi, Oroville's most famous resident, was the last of the Yahi Indians and is considered the last "Stone Age" Indian to come out of the wilderness and into western civilization. When he appeared out of the hills in East Oroville in 1911, he was immediately thrust into the national spotlight. The Visitor's Center at Lake Oroville has a thorough exhibit and documentary film on Ishi and his life in society.

Archaeological finds place the northwestern border for the prehistoric Martis people in the Oroville area.


South Table Mountain Butte County
Table Mountain Near Oroville

Oroville is situated at the head of navigation on the Feather River. The Yuba River flows into the Feather River near Marysville, California and these flow together to the Sacramento River. Geologically, Oroville is situated at the meeting place of three provinces: the Central Valley alluvial plain to the west, the crystalline Sierra Nevada to the SE and the volcanic Cascade Mountains to the north. It has a Mediterranean climate.

Oroville sits on the eastern rim of the Great Valley, defined today by the floodplains of the Sacramento River and its tributaries. Around Oroville these sediments are dominated by thick fans of Feather River sediments, but just east of this there is a thin, N-S band of late Cretaceous sediments. These sit on top of the Sierran basement, which beneath eastern Oroville comprise greenschist-facies metavolcanic rocks of Jurassic age, giving way to granites of the Sierra batholith to the east. These are manifestations of a vigorous island arc sequence, built out over an east-dipping subduction zone of mid-to-late Mesozoic age. The gold veins lace this ancient arc, remobilized by Mesozoic shearing and intrusions of igneous rock. The crystalline foothills are locally overlain by a Cenozoic sequence of Eocene clean beach sands overlain by Neogene volcanics, including the Diamond Head-like profile of "Table Mountain".


According to the Köppen Climate Classification system, Oroville has a warm-summer Mediterranean climate, abbreviated "Csa" on climate maps.

According to US climate data, on the average Oroville receives 30.7 inches of precipitation per year, which is about 20% less than the national average, but somewhat higher than the average California rainfall.

Climate data for Oroville
Month Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Year
Record high °F (°C) 82
Average high °F (°C) 55.1
Average low °F (°C) 37.2
Record low °F (°C) 22
Precipitation inches (mm) 5.55
Snowfall inches (cm) 0
Avg. precipitation days 11 10 9 7 4 2 0 0 1 4 8 10 66
Source: WRCC


Historical population
Census Pop.
1860 2,429
1870 1,425 −41.3%
1880 1,743 22.3%
1890 1,787 2.5%
1910 3,859
1920 3,340 −13.4%
1930 3,698 10.7%
1940 4,421 19.6%
1950 5,387 21.9%
1960 6,115 13.5%
1970 7,536 23.2%
1980 8,683 15.2%
1990 11,960 37.7%
2000 13,004 8.7%
2010 15,546 19.5%
Est. 2019 20,737 33.4%
U.S. Decennial Census


The 2010 United States Census The racial makeup was 11,686 (75.2%) White, 453 (2.9%) African American, 573 (3.7%) Native American, 1,238 (8.0%) Asian, 56 (0.4%) Pacific Islander, 554 (3.6%) from other races, and 986 (6.3%) from two or more races. Hispanic or Latino of any race were 1,945 persons (12.5%).

The Census reported that 14,662 people (94.3% of the population) lived in households, 72 (0.5%) lived in non-institutionalized group quarters, and 812 (5.2%) were institutionalized.

There were 5,646 households, out of which 2,126 (37.7%) had children under the age of 18 living in them, 1,893 (33.5%) were opposite-sex married couples living together, 1,174 (20.8%) had a female householder with no husband present, 430 (7.6%) had a male householder with no wife present. There were 615 (10.9%) unmarried opposite-sex partnerships, and 33 (0.6%) same-sex married couples or partnerships. 1,699 households (30.1%) were made up of individuals, and 718 (12.7%) had someone living alone who was 65 years of age or older. The average household size was 2.60. There were 3,497 families (61.9% of all households); the average family size was 3.22.

The population was spread out, with 4,267 people (27.4%) under the age of 18, 1,969 people (12.7%) aged 18 to 24, 3,940 people (25.3%) aged 25 to 44, 3,417 people (22.0%) aged 45 to 64, and 1,953 people (12.6%) who were 65 years of age or older. The median age was 31.5 years. For every 100 females, there were 93.7 males. For every 100 females age 18 and over, there were 91.8 males.

There were 6,194 housing units at an average density of 476.0 per square mile (183.8/km2), of which 5,646 were occupied, of which 2,423 (42.9%) were owner-occupied, and 3,223 (57.1%) were occupied by renters. The homeowner vacancy rate was 3.6%; the rental vacancy rate was 8.4%. 6,293 people (40.5% of the population) lived in owner-occupied housing units and 8,369 people (53.8%) lived in rental housing units.


As of the census of 2000, there were 13,004 people, 4,881 households, and 2,948 families residing in the city. The population density was 1,061.4 people per square mile (409.9/km2). There were 5,419 housing units at an average density of 442.3 per square mile (170.8/km2). The racial makeup of the city was 77.2% White, 4.0% Black or African American, 3.9% Native American, 6.3% Asian, 0.3% Pacific Islander, 2.8% from other races, and 5.4% from two or more races. 8.3% of the population were Hispanic or Latino of any race.

There were 4,881 households, out of which 33.9% had children under the age of 18 living with them, 36.4% were married couples living together, 18.9% had a female householder with no husband present, and 39.6% were non-families. 33.2% of all households were made up of individuals, and 14.5% had someone living alone who was 65 years of age or older. The average household size was 2.50 and the average family size was 3.19.

In the city, the population was spread out, with 30.1% under the age of 18, 10.3% from 18 to 24, 25.8% from 25 to 44, 19.2% from 45 to 64, and 14.7% who were 65 years of age or older. The median age was 33 years. For every 100 females, there were 95.8 males. For every 100 females age 18 and over, there were 90.7 males.

The median income for a household in the city was $21,911, and the median income for a family was $27,666. Males had a median income of $28,587 versus $21,916 for females. The per capita income for the city was $12,345. About 16.2% of families and 23.1% of the population were below the poverty line, including 39.3% of those under age 18 and 8.9% of those age 65 or over.

Oroville is home to a considerable number of ethnic Hmong. The Hmong migrated from Southeast Asia, especially from the country Laos, after the Vietnam War. The Hmong were allies of the American forces during the Vietnam War, many were recruited to help fight the Communist-aligned North Vietnamese forces in Laos and Vietnam. The Hmong people were given blanket political asylum after the fall of Saigon to the NVA in 1975. Every year there is an annual festival during autumn which was originally a harvest festival but now called the New Year celebration. In 2010, 773 people of Hmong descent lived in the city of Oroville, 726 in South Oroville, 640 in Thermalito, and 140 in Oroville East. In 2010, the Oroville/Chico Hmong community was the 9th largest in the Western US.

In the 1950s, a community of Romanians migrated from Europe, with 560 remaining at the time of the 2010 census.

Native Americans made up 3.7% of Oroville's population in 2010. The largest tribal group is the local Maidu. The Berry Creek Rancheria of Maidu Indians of California is headquartered in Oroville, with 306 members. The world's largest museum of Maidu culture is located in Oroville East, at the Lookout Museum.

Parks and Recreation

Oroville has several parks featuring playgrounds, picnic tables and benches. Parks and recreation areas include Bedrock Park, Centennial Plaza, Hammon Park, Hewitt Park, Rotary Park, Riverbend Park, Nelson Sports Complex, Gary Nolan Baseball Complex, and the Feather River Bike Trail.

In popular culture

In the early 1970s, the movie The Klansman was filmed in Oroville.

This Is Oroville, a novelty song recorded and released as a 45 rpm single in 1987 by local teacher Steve Herman, is generally considered to be among the more popular California 'city songs'.

Notable people

  • Isaac Austin, professional basketball player
  • Kevin Brown, professional baseball player for Milwaukee Brewers in early 1990s
  • Ishi, last surviving member of Yahi Native American Tribe
  • Hartford H Keifer (1902–1986), authority on eriophyid mites
  • Edward Abraham Kusel, photographer
  • Doug LaMalfa, U.S. Representative of California's 1st congressional district
  • Marilyn Nash, actress and casting director
  • Gary Nolan, professional baseball player
  • John Spence, first American combat frogman
  • Adolphus Frederic St. Sure, federal judge
  • Kendall Thomas, Nash Professor of Law and a co-founder of the Center for the Study of Law and Culture at Columbia Law School
  • Frank Tuttle, contemporary Native American artist
  • Robert H. Young, Korean War Medal of Honor recipient
  • Hubert Zemke, pilot

Sister cities


The economy of Oroville is largely driven by tourism to Lake Oroville and the Feather River recreation areas. The largest industries in Oroville as of 2017 are: Healthcare and Social Assistance (20%), Retail Trade (11%), and Accommodation and Food Service (10%).

As the neighboring city of Chico experiences growth in retail, education, and technology industries, Oroville has experienced population growth associated with commuters attracted to lower property costs, and a smaller cost of living. Recently, Oroville has seen an increase in economic development. Oroville Hospital announced in 2018 a hospital expansion, and in 2019 received $200 million in bonds for a five-story hospital tower expected to be competed in 2022. Notable retailers who have expanded to Oroville in the past few years include: Ross Dress For Less, Marshalls, Starbucks, and Chipotle Mexican Grill.

Top employers

According to the city's 2015-2016 Comprehensive Annual Financial Report, the top employers in the city are:

# Employer # of Employees
1 County of Butte 2,823
2 Oroville Hospital 1,482
3 Pacific Coast Producers 1,065
4 Graphic Packaging International 237
5 Walmart Stores, Inc. 234
6 Ammunition Accessories 167
7 Home Depot USA 137
8 Roplast Industries, Inc 129
9 City of Oroville 113
10 Currier Square Spe LLC 101


Photograph of Lake Oroville in the foothills of the Sierra Nevada mountains.
  • The Oroville Dam is the tallest dam in the US and one of the 20 largest dams in the world. This dam is 770 feet (235 m) tall and 6920 feet (2109 m) long, and it impounds Lake Oroville, which has a capacity of 3,500,000 acre feet (4.3 km3) of water, making it the second largest reservoir in California.
  • Lake Oroville is a man-made lake that was formed by the Oroville Dam. At 900 feet (270 m) when full, the lake has a surface of 15,500 acres (6,300 ha) for recreation and 167 miles (269 km) of shoreline. Lake Oroville features an abundance of camping, picnicking, horseback riding, hiking, sail and power boating, water-skiing, fishing, swimming, boat-in camping, floating campsites, and horse camping.
  • Lake Oroville Visitor Center is located in Kelly Ridge and overlooks the Oroville Dam and Lake Oroville. The visitor center is home to a museum with interpretive displays, the history of the dam and the State Water Project. A 47-foot (14 m) viewing tower allows the visitor the opportunity to have a panoramic view of the lake and surrounding areas.
  • Mother Orange Tree, located in Oroville, is the oldest of all Northern California orange trees.
  • The Feather River Fish Hatchery raise Chinook salmon and steelhead along the Feather River. The annual Oroville Salmon Festival is held on the fourth Saturday of September at both the Hatchery and downtown Oroville.
  • Riverbend Park is a 210-acre (85 ha) park on the Feather River established in 2006. The river features boat access and fishing. Other available activies include disc golf, running and walking trails, a river beach, and water fountains to play in on hot days.
  • Brad Freeman Bike Trail - a 41-mile (66 km) bike trail running along the Feather River up to the dam, down through the city then out to the Thermalito Forebay and Afterbay.
  • Oroville Chinese Temple - built in 1863 by members of the Chinese Popular Religion.

The Oroville Municipal Airport is located south of State Route 162 west of State Route 70.


The Oroville Union High School District includes all of the greater Oroville area, including many neighborhoods that are not within the city limits of Oroville. The District includes two traditional high schools, Las Plumas High School and Oroville High School, and Prospect High School, which functions as a continuation/remedial high school. The city also has an adult school, Oroville Adult School.

Several small, rural school districts are in the surrounding areas.

Oroville City Elementary School District

Elementary schools

  • Oakdale Heights Elementary
  • Ophir Elementary
  • Stanford Avenue Elementary
  • Wyandotte Avenue Elementary
  • STREAM Charter School

Middle schools

  • Central Middle School
  • Ishi Hills Middle School

Oroville Union High School District

High schools

  • Oroville High School
  • Las Plumas High School
  • Prospect High School

Higher education

  • Oroville Adult School
  • California State University, Chico (in Chico, 24 miles (39 km) northwest of Oroville)
  • Butte Community College
  • Northwest Lineman College



Oroville Hospital is a general acute care hospital and offers basic emergency care located in the City of Oroville.

Fire department

The Oroville Fire Department is responsible for calls within the city jurisdiction of approximately 13 square miles (34 km2) with a population of 16,260 (as of 2015).

Superfund sites

Oroville has three designated superfund cleanup sites, two of which have been cleaned up and delisted: a Koppers Co. wood treatment plant, a Louisiana Pacific sawmill, and the Western Pacific railyard.

The Koppers Co. plant was listed on September 21, 1984, for pentachlorophenol (PCP), dioxin, furan, polycyclic aromatic hydrocarbon (PAH), and heavy metals (copper, chromium, and arsenic) contamination due to chemicals spilled on unpaved areas.

The Louisiana-Pacific sawmill was listed on June 10, 1986, for pentachlorophenol PCP, dioxin, furan, heavy metals (arsenic, boron, and copper), and polycyclic aromatic hydrocarbon (PAH) contamination. Following remediation, the site was delisted on November 21, 1996. The sawmill was shut down in 2001.

The Western Pacific Railroad yard was listed on August 30, 1990, for volatile organic compound (VOC) and heavy metals (arsenic, lead, and chromium) contamination. Following remediation, the site was delisted on August 29, 2001.

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