Beavercreek is a city in Greene County, Ohio, United States. The population was 46,549 at the 2020 census, making it the largest city in the county and the second-largest suburb of Dayton. The Beavercreek area was settled in the early 1800s. A part of Beavercreek Township was incorporated and became the City of Beavercreek in February 1980. Many Beavercreek residents work at nearby Wright-Patterson Air Force Base. In 2007, Beavercreek ranked 84th in Money's Top 100 places to live.