Propane in Smithtown

5 propane locations in Smithtown, NY.

Of the 5 propane locations listed in Smithtown, 1 fills tanks by the gallon, 4 offer tank exchange, and 1 dispenses autogas for vehicles.

Nearby cities in New York with listed propane: Nesconset (1 location, about 2 mi), Lake Ronkonkoma (1 location, about 3 mi) and Lake Grove (1 location, about 3 mi).

5 locations

7-Eleven

81 Sheppard Lane, Smithtown, NY

Tank Exchange

7-Eleven

710 Route 347, Smithtown, NY

Tank Exchange

7-Eleven

221 West Main Street, Smithtown, NY

Tank Exchange

U-Haul

771 Nesconset Hwy, Smithtown, NY

Refill · Autogas

Tank exchange in Smithtown (1)

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.

Bypass Gas

762 Smithtown Bypass, Smithtown, NY 11787

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 An out-of-date cylinder cannot legally be refilled.