I've never stopped at a Walmart west of Columbia, but I have stayed at a few in Columbia and the one in Orangeburg, SC. Orangeburg, SC is not too far off 301, which I imagine how you would go from Hinesville; that's how we go from Brunswick when we want to avoid I-95 and a lot of I-26. There is a Walmart Neighborhood Market just off 301. Orangeburg isn't far from Columbia. The ones we have stayed at in Columbia are noisy. Columbia is a large trucking hub and there have always been large amounts of trucks at the Walmarts we've stayed at. The one in Orangeburg is much quieter. There has never been more than 1 RV when we were there and no trucks.
-Michael
Michael Girardo
2017 Jayco Jayflight Bungalow 40BHQS Destination Trailer
2009 Jayco Greyhawk 31FS Class C Motorhome (previously owned)
2006 Rockwood Roo 233 Hybrid Travel Trailer (previously owned)
1995 Jayco Eagle 12KB pop-up (previously owned)