Propane Atlas

Propane in Watertown

12 propane locations in Watertown, SD.

Of the 12 propane locations listed in Watertown, 3 fill tanks by the gallon, 9 offer tank exchange, and 2 dispense autogas for vehicles.

Nearby cities in South Dakota with listed propane: Milbank (6 locations, about 33 mi), Webster (3 locations, about 37 mi) and Brookings (8 locations, about 44 mi).

12 locations

Matheson

4th Avenue Northwest, Watertown, SD

Refill

Sioux Valley Co-op - Cenex

220 10th St NW, Watertown, SD

Refill · Autogas

Sioux Valley Coop Highway 212

1601 9th Ave SE, Watertown, SD

Refill · Autogas

Tank exchange in Watertown (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.

Casey's General Store #2089

185 4TH ST NE, Watertown, SD 57201

Tank Exchange · Blue Rhino

Directions Call store

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

Casey's General Store #2445

20 19TH STREET NE, Watertown, SD 57201

Tank Exchange · Blue Rhino

Directions Call store

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

Casey's General Store #2455

405 10TH ST SW, Watertown, SD 57201

Tank Exchange · Blue Rhino

Directions Call store

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

Dollar General #21569

1010 4th Street NE, Watertown, SD 57201

Tank Exchange · Blue Rhino

Directions Call store

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

Dollar General #21951

3224 9th Ave SW, Watertown, SD 57201

Tank Exchange · Blue Rhino

Directions Call store

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

Mac's Hardware #053264

26 9th Avenue Southwest, Watertown, SD 57201

Tank Exchange · Blue Rhino

Directions Call store

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

Menards Watertown #3097

2100 NINTH AVENUE SE, Watertown, SD 57201

Tank Exchange · Blue Rhino

Directions Call store

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

Runnings Supply #28

1701 9th Avenue SE, Watertown, SD 57201

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.