Sugar Grove is a village in Fairfield County, Ohio, United States. The population was 429 at the 2020 census. Sugar Grove was named for a grove of sugar maple near the original town site. In May 2012, Sugar Grove hosted the inaugural Dude's Weekend celebration. In July 2013 the 2nd annual Dude's Weekend was held in Sugar Grove. Both were att…Sugar Grove is a village in Fairfield County, Ohio, United States. The population was 429 at the 2020 census. Sugar Grove was named for a grove of sugar maple near the original town site. In May 2012, Sugar Grove hosted the inaugural Dude's Weekend celebration. In July 2013 the 2nd annual Dude's Weekend was held in Sugar Grove. Both were attended by Josiah Ryan.