Simplify the following text for a Grade 10 native English-speaking person.
Original: California State Polytechnic University , Pomona , or Cal Poly Pomona , is a public university located in Pomona , California , United States .
Simplified: The California State Polytechnic University , Pomona ( also known as Cal Poly Pomona ) is a public university . It is located in the city of Pomona in the state of California , United States .