Here is an interesting report from the Pew Center for the Study of States on pension funding.
State Pensions Update - Pew
Four states are funded at 95% or better: Wisconsin (the only one at 100%), North Carolina, South Dakota and Washington.
Personal Note: Thankfully, my pension is in one of the above four states. I can't brag about getting 120% of my highest pay, full COLA, fully paid medical care, live-in maid/housekeeper, half-price booze, etc., but at least I am reasonably sure I will get what I earned.