This paper considers how social identities may shape group members' spatial behaviour. Specifically, it reports a small-scale interview study (n = 30) conducted with young people (17 years of age) living in a Scottish town close to a national border (with England). This border has very little physical presence. However, the psychological significance of a Scottish identification remains strong, and we investigate the ways in which national identities are implicated in young people's deliberations about their future geographic mobility throughout the United Kingdom. Our data suggest that national identity-related considerations are not always salient in our participants' deliberations. Yet, when national identity is salient and mobility is framed in national terms, we find our participants are often cautious about relocating to England. However, our data also suggest that the ways in which a national framing of self and mobility may be consequential is itself diverse.