Sarah-Kay Lacks attended Vassar College in Poughkeepsie New York and received a Bachelors of Arts with a double major in Religion and Urban Studies. After graduating from Vassar, Sarah-Kay spent two years working at City of New York/Parks and Recreation on the private staff of the Commissioner of Parks and Recreation. At Parks, Sarah-Kay ran a recruitment and retention program which recruited Ivy League students to government positions. By the year 2000, she was the youngest person holding a Director title in New York City government.
In 2002, Sarah-Kay returned to school and received a Master's in Public and Non-profit Management from the Wagner School of Public Service. In 2004, Sarah-Kay joined the staff at the Jewish Community Center in Manhattan as the Director of Community Programs. In April of 2006, with the full and unwavering support of the marketing, programming, and development staff Sarah-Kay organized buses which took 5,000 New Yorkers to Washington D.C. for the rally to Stop the Genocide in Darfur.