He is the chief researcher for Federation CJA, a Canadian Jewish organization based in Montreal, Quebec.
He has conducted a comprehensive series of analyses of the 2001 Census, and more recently of the 2011 National Household Survey, along various themes.
Charles Shahar has conducted a number of studies on the Canadian Jewish Community.
[2][3] Shahar conducted the first comprehensive community study of Hasidic Jews in Canada.
The study is the first to include significant quantitative sample of a Hasidim in North America.