"Both Federal and nonfederal systems are in service. The FAA purchased and
currently maintains the Federal AWOS equipment. State, local, and private
organizations buy and maintain nonfederal AWOSs."

So if Iowa has a larger number than average of stations it is probably
because local Iowa governments and organizations are paying for them.

And, conversely, Missouri must be keeping their money in their
wallets...

Thanks for the info!
--
Jay Honeck
Iowa City, IA
Pathfinder N56993
www.AlexisParkInn.com
"Your Aviation Destination"