Austin is a city in Lonoke County, Arkansas, United States. The population was 2,038 as of the 2010 census and an estimated 3,693 as of 2018. It is part of the Little Rock–North Little Rock–Conway Metropolitan Statistical Area.

Lonoke County is located in the Central Arkansas region of the U.S. state of Arkansas. As of the 2020 census, the population was 74,015, making it the 10th-most populous of Arkansas's 75 counties. The county seat is Lonoke and largest city is Cabot. Included in the Central Arkansas metropolitan area, with Little Rock as the principal city, it is an alcohol prohibition or dry county.