Depends on the stations I'm assigned to (I'm on swing shift, so I can be placed at any station within my district). The shortest one way commute is 78 km (48 mi) and the longest is 98 km (61 mi). My drive is all on rural highways and city streets and takes between an hour and an hour and a half each way.
I'd live closer, but housing costs where I work are easily 100-200% higher than where I live now, but as a career move my current service is well worth the trip.
I'm currently in the testing process to get on with my local county service part-time. That commute will be 3 km (1.8 mi) to the main base and 30 km (18mi) and 17 km (10 mi) to the two satellite stations.
I know my wife would be a lot happier if I put my time in, got some seniority, snagged a full time spot and switched services, but my current service is so progressive and has so many career track options that I won't get in my much smaller local service. Hence, the LONG drive.