This article studies the effects of interregional spillovers from the American Recovery and Reinvestment Act of 2009 (the Recovery Act). Using cross-county commuting data, we cluster US counties into local labour markets, each of which we further partition into two subregions. We then compare differential labour market outcomes and Recovery Act spending at the regional and subregional levels. Among pairs of subregions, we find evidence of fiscal policy spillovers. According to our benchmark specification, $1 of Recovery Act spending in a subregion increases its own wage bill by $0.64 and increases the wage bill in its neighbouring subregion by $0.50 during the first two years following the Act's passage. The spillover effect occurs in the service sector, whereas the direct effect occurs in both the services and goods-producing sector.