Link to federal government website?
The Federal DEA has 222 offices nationwide. In PA, this includes larger offices in Philly and Pittsburgh, and smaller “resident” offices in Harrisburg, Scranton, and Allentown. They don’t bother with South Bethlehem. Granted, the Allentown office isn’t far away, but it doesn’t seem too surprising that there would be an office somewhere in the Lehigh Valley, given that it is the third largest metro area in the state.
https://www.dea.gov/divisions/phi/phi-map.jpg