While Canada spends less on early childhood education and care than most OECD countries, Canadian parents are among the most likely to be employed. As Canadian parents are working parents, child care fees can play a major role in decision-making and labour force participation, particularly for women. This study examines, for the first time, median unsubsidized child care fees in Canada's big cities for infants, toddlers and preschoolers. It also develops an affordability index that compares child care fees to women's income. (author abstract)