Grästorp is a locality and the seat of Grästorp Municipality in Västra Götaland County, Sweden. It had 2,969 inhabitants in 2010. It is the only locality in Grästorp Municipality. Sports. The following sports clubs are located in Grästorp: IK Gauthiod. Grästorps IK. References. External links. Media related to Grästorp at Wikimedia Commons. https://en.wikipedia.org/wiki/Gr%C3%A4storp