Cedar Grove is a mixed-use locality in the City of Logan, Queensland, Australia. In the 2021 census, Cedar Grove had a population of 1,992 people. The western and part of the northern boundary of Cedar Grove follows the Logan River. On the river on the northern boundary is the Cedar Grove Weir. The Mount Lindesay Highway loosely forms the e…Cedar Grove is a mixed-use locality in the City of Logan, Queensland, Australia. In the 2021 census, Cedar Grove had a population of 1,992 people. The western and part of the northern boundary of Cedar Grove follows the Logan River. On the river on the northern boundary is the Cedar Grove Weir. The Mount Lindesay Highway loosely forms the eastern boundary of the locality.