In the
2021 Census of Population conducted by
Statistics Canada, Arran–Elderslie 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. • Population total in 1996: 6,851 • Arran (township): 1,707 • Chesley (town): 1,904 • Elderslie (township): 1,231 • Paisley (village): 1,106 • Tara (village): 903 • Population in 1991: • Arran (township): 1,690 • Chesley (town): 1,852 • Elderslie (township): 1,219 • Paisley (village): 1,102 • Tara (village): 848 ==See also==