# Oroville

> English word · Proper noun · frequency rank #56,953

## Definitions
1. A city, the county seat of Butte County, California, United States.
2. A city in Okanogan County, in north-central Washington, United States.

## Etymology
The town in California was originally called Ophir City, but the name was changed to Oroville when the first post office opened in 1854, from Spanish oro (“gold”) + -ville.

## Source
Compiled from Wiktionary via kaikki.org (CC BY-SA). Data vintage: 2026-05-06.
Canonical page: https://plainspell.com/en/word/oroville