School-Age Educare is an integrated part of the Swedish compulsory school organization, focusing socialrelations, children's interests and play. Although included in the national school curriculum, there is a lackof knowledge of if and how School-Age Educare currently work with the mandatory task of educationfor sustainable development (ESD). This article thus seeks to examine the educational potentials, butalso possible need for support, of School-Age Educare in relation to ESD. Through analyzing 453 teachersresponses to a questionnaire with open and closed questions, we reveal that most teachers find ESD important,but also want to learn more about it. There is potential in the educational task, and pedagogicalapproach, supporting ESD as a transactional and pragmatic approach. The constrains contributing to ESDlies in the somewhat absent awareness among the teachers themselves, but also in the limited resourcesand time available of carrying out sustainability education at the centers.