Ravenna is a city in Buffalo County, Nebraska, United States. It is part of the Kearney, Nebraska Micropolitan Statistical Area. The population …Ravenna is a city in Buffalo County, Nebraska, United States. It is part of the Kearney, Nebraska Micropolitan Statistical Area. The population was 1,441 at the 2020 census. Ravenna was founded in 1886 when the Burlington Railroad was extended to that point. It was named after the city of Ravenna, Italy, and many of Ravenna's street names commemorate other Italian places.