This research combined social psychological theory testing with the practical concern of gathering information useful for the social marketing of active living. The study examined variables related to the intentions and behaviour of rural homemakers with respect to moderate physical activity, using the theory of planned behaviour as a framework. Rural homemakers (n = 630) in four Alberta communities were surveyed by telephone concerning their attitudes, self-efficacy, perceived social support, intentions, and present activity behaviour. Intentions, self-efficacy, and various beliefs related to barriers and social support discriminated active from inactive homemakers. For active homemakers (n = 473), attitude, perceived social support, and self-efficacy predicted future intentions. For inactive homemakers (n = 157), only attitude and self-efficacy predicted intentions. The practical implications of the findings are discussed, in terms of fostering enjoyable experiences, reducing barriers, and providing supportive environments.