In the 2021 Census of Population conducted by Statistics Canada, Dapp had a population of 30 living in 13 of its 17 total private dwellings, a change of 50% from its 2016 population of 20. With a land area of 0.31 km2 (0.12 sq mi), it had a population density of 96.8/km2 (250.6/sq mi) in 2021.[1]
As a designated place in the 2016 Census of Population conducted by Statistics Canada, Dapp had a population of 10 living in 4 of its 5 total private dwellings, a change of -70.6% from its 2011 population of 34. With a land area of 0.2 km2 (0.077 sq mi), it had a population density of 50.0/km2 (129.5/sq mi) in 2016.[16]
The community derives its name from the initials of David A. Pennicuick, a railroad official.[17]
In 1985, one of the last two traditional wooden grain elevators in Alberta was built in Dapp by the Alberta Wheat Pool.[18]
Dapp Hotel was built in 1948 and one of the first dwellings reported, was built in 1945, possibly the first house in the community.
^"Geographical Identification and Population for Unincorporated Places of 25 persons and over, 1971 and 1976". 1976 Census of Canada(PDF). Supplementary Bulletins: Geographic and Demographic (Population of Unincorporated Places—Canada). Vol. Bulletin 8SG.1. Ottawa: Statistics Canada. 1978. Retrieved September 26, 2024.
^1981 Census of Canada(PDF). Place name reference list. Vol. Western provinces and the Territories. Ottawa: Statistics Canada. 1983. Retrieved September 26, 2024.