The East End part of Austin is in the 78741 ZIP code. It is in the general vicinity of S. Pleasant Valley and East Riverside. The exact address is 1600 Wickersham Lane.
This ZIP code did not make the top 4 crime ridden ZIP codes in the Austin area, according to a March 2014 news report.
However, the area does have crime. I suggest you go to a website like spotcrime.com, plug in the address 1600 Wickersham Land 78741 and decide for yourself.