Propane Atlas

Propane in Barnwell

3 propane locations in Barnwell, SC.

Of the 3 propane locations listed in Barnwell, 3 offer tank exchange.

Nearby cities in South Carolina with listed propane: Williston (3 locations, about 12 mi), Denmark (3 locations, about 14 mi) and New Ellenton (3 locations, about 22 mi).

3 locations

Tank exchange in Barnwell (3)

Stores listed by the exchange brands' own retailer locators as carrying swap cages for grill-size cylinders. A listing is not a stock check, so call ahead if you need a tank at a particular hour.

Dollar General #25703

36 SEAY ST, Barnwell, SC 29812

Tank Exchange · Blue Rhino

Directions Call store

Listed in Blue Rhino's retailer locator, checked Sep 27, 2026.

Dollar General #30569

1209 MAIN ST, Barnwell, SC 29812

Tank Exchange · Blue Rhino

Directions Call store

Listed in Blue Rhino's retailer locator, checked Sep 27, 2026.

Before you go

Refill vs. Tank Exchange: What You Actually Get

Exchange trades a tank; refill sells you gas by the gallon. The difference in what you get home with is larger than most people expect.

When Does a Propane Tank Expire?

Twelve years from the date stamped on the collar, then a requalification interval that depends on the test method. An out-of-date cylinder cannot legally be refilled.