This study examines how smoke‐free laws influence cross‐border keno shopping in Nebraska. We exploit smoke‐free law variation in timing and location to identify keno revenue gains and losses between neighboring smoke‐free and smoke‐friendly areas. We find the Lincoln municipal smoke‐free law reduced keno revenue by 23.5% in Lincoln and increased keno revenue by 30.0% in smoke‐friendly Surrounding Lincoln counties. The Omaha municipal smoke‐free law reduced keno revenue by 14.8% in Omaha and increased keno revenue by 7.1% in smoke‐friendly Surrounding Omaha counties. Following the Nebraska statewide law, no Nebraska areas had a smoke‐friendly advantage and keno revenue fell by an insignificant 1.0% and 5.2% in the surrounding Lincoln and Omaha counties, respectively. Our results may be of interest to local policy makers interested in understanding the amount of business activity and tax revenue that may be migrating out of a community or even the state. (JEL l18, K32)