Carol Comegno, Cherry Hill Courier-Post Published 7:46 pm UTC Jun. 3, 2021 Carol Comegno, Cherry Hill Courier-Post Published 7:46 pm UTC Jun. 3, 2021 Jill Biden is a Jersey Girl — by birth and at heart. While she mostly grew up outside of Philadelphia, she also lays claim South Jersey roots, having been born in Hammonton, New Jersey, during a weekend visit to her grandparents' house and spent much of her childhood in the state's southern counties. (The first lady also lived for two years while a grade schooler in Mahwah, Bergen County.) First lady Jill Biden, who turns 70 on June 3, even identifies herself as “a Hammonton girl,” which is what she told a local paper during an interview there last year while visiting as the former second lady of the United States in July.