Vilonia is a city in Faulkner County, Arkansas, United States. Its population was 4,288 in 2020 and estimated at4,429 in 2021, up from 3,815 at the 2010 census and 2,106 at the 2000 census. It is part of the Central Arkansas region.

Faulkner County is located in the Central Arkansas region of the U.S. state of Arkansas. As of the 2020 census, the population was 123,498, making it the fifth most populous of Arkansas's 75 counties. The county seat and largest city is Conway. Faulkner County was created on April 12, 1873, one of nine counties formed during Reconstruction, and is named for Sandford C. Faulkner, better known as Sandy Faulkner, a popular figure in the state at the time.