Oviedo is a city in Seminole County, Florida, United States. As of 2020, the population was 40,059. It is part of the Orlando–Kissimmee–Sanford Metropolitan Statistical Area. Oviedo was known for its historic houses and buildings and agriculture, as well as its population of chickens that roamed the downtown area. Although the city historically has been rural, in recent years it has had an influx of new developments to support its rapid growth, due to its proximity to the University of Central Florida and the Central Florida Research Park.