According to a survey reported by the Huffington Post, the average bra size in America was 34DD as of 2013. This is a significant increase from 1992, when the most common bra size was a 34B.
Lingerie retailer Intimacy collected data by interviewing more than 60,000 customers in its 16 stores. They then compared the findings to a similar study performed 20 years prior. Kate Terhune, a spokeswoman for Intimacy, pointed to weight gain and breast implants as two factors in America’s growing cup size. However, she credits education and a wider variety of available sizes as larger factors in the increase. The modern woman is more educated about finding the right bra fit and has more sizes to choose from, which sometimes means better comfort in a larger cup.