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is the 5th largest city in Los Angeles County (after Los Angeles, Long Beach, Glendale, and Santa Clarita). As of the 2000 census, the city population was 149,473. In 2005, its population was estimated as 160,815.
Pomona is the location of California State Polytechnic University, Pomona (Cal Poly Pomona). This university was established on the site of breakfast cereal magnate W.K. Kellogg's ranch located on the city's western corner. The university has over 21,000 students and cover an area of over which makes it the second largest land-holding university in the California State University system, and is known for its engineering and architectural programs which are very selective and nationally ranked. Other higher-education institution is the Western University of Health Sciences located downtown offering programs ranging from veterinary medicine to nursing to osteopathic medicine.
The city is also the home of the Los Angeles County Fairgrounds and the L.A. County Fair.
Pomona is not the site of Pomona College. Although this private liberal arts institution was founded in the city in 1887, its campus has been in neighboring Claremont since 1889.
Since the 1980s, Pomona's newest neighborhood Phillips Ranch, experienced rapid growth with. Homes are still being built in the hilly area between Downtown and Diamond Bar. Today, Phillips Ranch is nearly all residential. Northern Pomona has seen some gentrification with additional housing units added and revamped streetscapes.
Aside from Pomona's educational assets, Pomona is also known for hosting the NHRA Powerade Winternationals Drag Racing venue.
Pomona is located at (34.060760, -117.755886). According to the United States Census Bureau, the city has a total area of 59.2 km² (22.8 mi²), all land.
Pomona is bordered by the cities of San Dimas on the northwest, La Verne and Claremont on the north, Montclair and Chino on the east, Chino Hills and Diamond Bar on the south, and Walnut, South San Jose Hills, and Industry on the southwest. The Los Angeles/San Bernardino county line forms most of the city's southern and eastern boundaries.