The hamlet and surrounding area has a strong Polish and Ukrainian influence, mostly from immigration at the turn of the 20th century.[citation needed] The former Newbrook Observatory, a meteor observatory that was the first facility in North America to photograph Sputnik 1, is located in the hamlet.
In the 2021 Census of Population conducted by Statistics Canada, Newbrook had a population of 63 living in 32 of its 50 total private dwellings, a change of −31.5% from its 2016 population of 92. With a land area of 0.52km2 (0.20sqmi), it had a population density of 121.2/km2 (313.8/sqmi) in 2021.
As a designated place in the 2016 Census of Population conducted by Statistics Canada, Newbrook had a population of 92 living in 46 of its 52 total private dwellings, a change of −3.2% from its 2011 population of 95. With a land area of 0.52km2 (0.20sqmi), it had a population density of 176.9/km2 (458.2/sqmi) in 2016.
↑"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.