None that I've heard of or found either (Northern half).
I've been trying to figure out the overall gun purchasing mindset of Iowa. There is a growing handgun market due to the new carry law, but most of the ranges are public and have no range officers. I'm guessing the shooting clubs for the most part also have no range officers and you just pay to use the range whenever you want. With the majority of the state being so rural, there's probably not enough money to be had renting.
Good luck. Your best bet for looking would probably be the biggest cities.