Propane Atlas

Propane in Marathon

9 propane locations in Marathon, FL.

Of the 9 propane locations listed in Marathon, 9 offer tank exchange.

Nearby cities in Florida with listed propane: Big Pine Key (6 locations, about 18 mi), Islamorada (2 locations, about 29 mi) and Tavernier (3 locations, about 39 mi).

9 locations

Tank exchange in Marathon (9)

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.

Home Depot

4555 Overseas Hwy, Marathon, FL 33050

Tank Exchange · AmeriGas

Listed by AmeriGas as a 24/7 self-serve exchange.

Directions About Home Depot exchange

Listed in AmeriGas's exchange locator, checked Sep 27, 2026.

Kent Kwik #955

2565 Overseas Hwy, Marathon, FL 33050

Tank Exchange · Blue Rhino

Directions Call store

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

Kent Kwik #961

5515 Overseas Hwy, Marathon, FL 33050

Tank Exchange · Blue Rhino

Directions Call store

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

Winn Dixie #0267

5585 Overseas Hwy, Marathon, FL 33050

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 An out-of-date cylinder cannot legally be refilled.