Recently crowdfunding has emerged as an important source of funding for creative projects and ventures around the world. In this paper we examine how peer adoption of crowdfunding influences a spatial diffusion of crowdfunding adoption by creators over time. We obtained data on the creation of crowdfunded projects from a leading crowdfunding campaign from 2009 to 2013. We find that creators from socially similar areas are influential to later creators while those from geographically proximate areas are rarely influential. Furthermore, the influence of creators from socially similar areas generally increases over time. Overall, our study provides an insight into the spatial diffusion of crowdfunding and offers implications for platform providers and project creators.