Jaggar graduated Valley Central High School and attended New York University for two years before dropping out to pursue a career in entertainment in Los Angeles.

Studied business marketing at NYU. Jaggar has background in ballet. Career Before acting
Zara Jaggar didn't immediately pursue an acting career. In an interview with Nylon, she credited her current career path as an opportunity she seized and being in the right place at the right time. From the year she moved to Los Angeles up until 2010, Jaggar was working as an agent at CAA. The alleged opportunity arose while she waited at audition for one of her clients. The client, who remains unknown, missed the audition and in place Zara read a few lines for the producers and director. In the same Nylon interview, Ten Years (2011) was revealed to be the film and later on revealed she had to resign from her job at CAA to pursue a new found passion in acting. As luck would have it, Zara Jaggar is now represented at CAA.
Acting
Jaggar's first film role was 10 Years as Jess followed by a reoccuring guest spot as Dana Scott on the hit USA show Suits. From then on, the roles slowly started to pour in. Jaggar has been quoted saying she purposely kept the roles in her early years in the industry to a minimum. Citing fear of not seeing acting through as her rationality behind her decision to do small guest roles on television shows such as New Girl, Suits, and Grey's Anatomy.

In 2013, Deadline announced Jaggar would voice Honey Lemon in their new animated movie slated for release in 2014, Big Hero 6. Following the announcement, Zara confirmed on Twitter that she would have a part in director Paul Haggis' film Third Person in 2013. During a press conference for the movie, Jaggar repeatedly mentioned that the role of Julia in the film was the hardest thing imaginable.

".... Tell me how does someone get into the mind of a mother who has lost everything. A career and now her child is being stolen from her. Can you put yourself through that? Like you [pointing to the female reporter].. if you were in her spot, how would you control the constant sprial of your life?"

"I have always been told that I have no filter or a bite when I talk. I guess you can say that I'd rather be straight then bullshit my way through life hoping I don't step on anyone's toes... is that wrong? No. Should I maybe reconsider how I say things? Maybe. But I'm not going to apologize for being honest. No matter how brutal it is."