I think you can point to a fair number of larger markets with multiple public radio stations in various formats - in NYC you've got Pacifica crashing and burning what's left of WBAI, jazz on WBGO, AAA on WFUV and several smaller stations on the outskirts.
The unusual situations are the few where there are two news stations actively and directly competing - KQED/KALW, WGBH/WBUR and KUOW/KNKX are by far the three biggest of those cases.
The unusual situations are the few where there are two news stations actively and directly competing - KQED/KALW, WGBH/WBUR and KUOW/KNKX are by far the three biggest of those cases.