SELECT MIN(population) FROM table_name_38 WHERE regional_county_municipality = "brome-missisquoi" AND name = "cowansville" AND region < 16
Cowansville memiliki kurang dari 16 wilayah dan apakah kota Brome-Missisquoi, apa populasi mereka?
CREATE TABLE table_name_38 (population INTEGER, region VARCHAR, regional_county_municipality VARCHAR, name VARCHAR)