Oroville is a medium-sized city located in the state of California. With a population of 20,041 people and 11 associated neighborhoods, Oroville is the 320th largest community in California.

The citizens of Oroville are slightly less educated than the national average of 21.84% for the average city or town: 14.13% of adults in Oroville have a bachelor's degree or advanced degree

The per capita income in Oroville in 2022 was $23,754, which is low income relative to California and the nation. This equates to an annual income of $95,016 for a family of four. However, Oroville contains both very wealthy and poor people as well.

Oroville is an extremely ethnically-diverse city. The people who call Oroville home describe themselves as belonging to a variety of racial and ethnic groups. The greatest number of Oroville residents report their race to be White, followed by Asian. Oroville also has a sizeable Hispanic population (people of Hispanic origin can be of any race). People of Hispanic or Latino origin account for 15.09% of the city’s residents. Important ancestries of people in Oroville include Irish, German, English, Italian, and French.

The most common language spoken in Oroville is English. Other important languages spoken here include Miao/Hmong and Spanish.