Post Oak Rest Area - Southbound
I-57 Southbound · ≈ MM 114 · Exit 116 (2 mi) · near Salem, Illinois
Amenities
- Restrooms
- Drinking water
- Vending machines
- Truck parking
Not recorded: Accessible restrooms · Picnic area · Pet area · Playground · EV charging · Wi-Fi · Dump station · Visitor information · Scenic view
Missing something? Report an amenityNext Stops on I-57
Traveling northbound? Post Oak Rest Area - Northbound is on the other side of I-57.
All rest areas on I-57 →About Post Oak Rest Area - Southbound
Post Oak Rest Area - Southbound is a rest area on I-57 southbound in Illinois, about 2 miles from Exit 116, at about mile 114, near Salem. It has drinking water, restrooms and vending machines, plus truck parking. The next rest area southbound is Rend Lake Rest Area (I57-SB), about 36 miles ahead.
It serves southbound traffic only – if you're heading the other way, use Post Oak Rest Area - Northbound on the opposite side of I-57.
It's one of 64 rest areas and welcome centers in Illinois, 30 of which have truck parking. See all Illinois rest areas on the state page.
The nearest truck stop is I-57 Truck Stop near La Clede, approx. 19.5 miles away.
Parking Rules
Unknown – check posted signs. We haven't verified Illinois's overnight rule yet.
Can you sleep at rest areas in Illinois? →FAQ
Does Post Oak Rest Area - Southbound have truck parking?
Yes, Post Oak Rest Area - Southbound has designated truck parking. Lots can fill up in the evening.
What is the next rest area after Post Oak Rest Area - Southbound on I-57 southbound?
The next stop southbound is Rend Lake Rest Area (I57-SB), about 36 miles ahead near Exit 77. The previous one is Green Creek Rest Area - Southbound (49 miles back).
Where is Post Oak Rest Area - Southbound located?
Post Oak Rest Area - Southbound is on I-57 southbound at about mile 114 near Exit 116, close to Salem, Illinois. GPS coordinates: 38.59639, -88.96707.
Is there a Post Oak Rest Area - Northbound?
Yes – drivers heading northbound use Post Oak Rest Area - Northbound on the other side of I-57. Rest areas on divided highways serve one direction, so check the direction before you navigate.