Jump up ^ Of these , about 3,370,000 ( 41.3 % ) were Belarusians .
About 257,000 belonged to other ethnicities ( Russians , Poles , Ukrainians , and Jews ) .
Jump up ^ Of these , about 3,370,000 ( 41.3 % ) were Belarusians , and about 257,000 belonged to other ethnicities ( Russians , Poles , Ukrainians , and Jews ) .