According to the exit polls:

East (21%): 65% Clinton, 32% Sanders
Baltimore Area (28%): 66% Clinton, 31% Sanders
DC Suburbs (35%): 66% Clinton, 33% Sanders
Central/West (15%): 53% Clinton, 45% Sanders

If these margins hold, Clinton should win most congressional district outside of the Sixth (i.e. Western Maryland) by roughly 2-1 and pick up a good number of delegates. Where the races are at all close, which can even include places where one candidate has a 10 point lead, candidates often come out with the same, or nearly the same, number of delegates.