All of these sights have rentals throughout Southern Illinois Area and have great search features. there are many more as well if you google something like rentals in southern illinois, you'll find many more options. remember that just because a company is located in carbondale, carterville, herrin, etc. they could still likely have listing in Marion or other areas so dont let location stop you from checking out a company if its within reason.
Hope this was helpful!
We have a very nice 5 year old 1 bed 1 bath apartment with garage 110 n 5th st marion il
contact Rob at 997 8500
we also have new construction 2 bed 1 bath apartment with garage 1502 w central st.850.00