Pomona is a city in Los Angeles County, California, United States. Pomona is located in the Pomona Valley, between the Inland Empire and the San Gabriel Valley. As of the 2010 United States Census, the city's population was 149,058.
The main campus of California State Polytechnic University, Pomona, also known as Cal Poly Pomona, lies mostly within Pomona's city limits. Some campus areas are also located in San Dimas and Walnut.