If you are looking for good places to train parkour in a rural area, you may have found it difficult to find any information on the subject online. This article is about good places to train parkour in Georgetown Illinois, although I only advise training on public property or property created for public use (like businesses, or tourist sites). It is not a good idea to train parkour and freerunning on private property you do not have specific permission to train parkour on.
Interurban Park is the best place I've found to train parkour in Georgetown. It has several good spots to train bar tricks (swing sets, monkey bars, etc.), and allot of bigger playground equipment good for practicing drops, vaults, swing throughs, and more. The playground equipment area is floored with pea gravel, so it's not great for tricks you need to run up to. It does make for a fairly soft landing though.
In addition to the playground equipment, the park also has several large trees that are good for practicing tic tacs, however none of the trees have low enough branches for them to be much for climbing or jumping off of. There aren't any good spots for wall runs, or cats at the park, but it does have allot of benches and tables that are connected to the ground which are good for vaulting over and jumping, or flipping off of.
The park is on perrysville road, but the best way to find it is to go to the McDonalds, and drive north on Route One till you see a sign for Interurban Park on the right. I train at Interurban park fairly regularly, and I've never been asked to leave.
If Interurban park is really crowded (It usually is after school gets out on weekdays) you could train at the Post Office, however if you train there before they close at 5:00 P.M. you will likely be asked to leave.