SELECT MIN(population_canada_2011_census) FROM table_1011906_1 WHERE seat_of_rcm = "Cowansville"
Berapa Sensus Populasi Minimum Kanada 2011 Dengan Kursi RCM Menjadi Cowansville
CREATE TABLE table_1011906_1 (population_canada_2011_census INTEGER, seat_of_rcm VARCHAR)