In 2018, 63 is the most common age for an American (U.S.) Jean who is registered female with the Social Security Administration. It is the 157th most common female first name for living U.S. citizens.
― Anonymous User 10/12/2018
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The name Jean was given to 67 girls born in the US in 2015.
My grandmother is named Jean. The name was very popular in the 1920s when she was born. She often jokes about her primary school class, which had 7 girls named Jean and 9 named Shirley. If the teacher wanted silence she would call out "Jean and Shirley! Be quiet!", thus silencing half of the class!