Cottlesville is a rural community just outside Summerford on New World Island, Newfoundland and Labrador. Demographics In the 2021 Census of Population conducted by Statistics Canada, Cottlesville had a population of living in of its total private dwellings, a change of from its 2016 population of . With a land area of , it had a population density of in 2021. References Populated coastal places in Canada Towns in Newfoundland and Labrador