El Reno is a city located in Canadian County, Oklahoma, United States. It is part of the Oklahoma City metropolitan area and has a rich history dating back to the late 19th century. The city is known for its historic downtown area and the annual El Reno Fried Onion Burger Day festival, which celebrates a local culinary tradition. The population of El Reno is approximately 19,000 residents. The city features several parks, recreational facilities, and a variety of local businesses. El Reno is also home to the El Reno Correctional Center, which plays a significant role in the local economy and community.