- Utica is a city located in upstate New York, United States. It is the seat of Oneida County and has a population of approximately 60,000 people. The city is known for its diverse population, historical significance, and cultural attractions. Some notable sites in Utica include the Utica Zoo, Munson-Williams-Proctor Arts Institute, and the Stanley Theater. Utica is also home to the Utica Comets, a professional ice hockey team.