While Hopkins doesn't publish minimums, admitted students typically score well above 1500 out of 1600 (on the older SAT scoring scale). With the new SAT (out of 1600), expect a similar level of performance. Remember that this is a general range; some admitted students may score slightly lower, while others score significantly higher.
Ultimately, a high SAT score is just one piece of the application puzzle. Strong GPA, compelling essays, impressive extracurricular activities, and strong letters of recommendation are equally crucial. Focusing solely on the SAT score without excelling in other areas will likely not result in admission.