Washington propane price: $2.62 per gallon (residential average, estimate). Week of Oct 12, 2026. U.S. average: $2.54. Source: Sample data (placeholder; EIA feed not yet connected). Updated Oct 14, 2026. SAMPLE DATA, NOT REAL PRICES.
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Washington Propane Prices: Tank Fill and Swap Costs Near You
Average residential propane in Washington is $2.62/gal (+0.02 vs last week). Use it to estimate a home tank fill, then compare with cylinder swap/exchange prices nearby. Sample data
Sample data, not real prices. Placeholder estimates for preview only. Live EIA data is not connected yet.
Propane locations in Washington
Real businesses, compiled Oct 19, 2026 from public company location pages and, where noted, directory listings (see Source). Only what the source states is shown; anything else is "Unknown". Call ahead to confirm services and prices.
Listed alphabetically by city.
Local Propane Companies with cylinder fill, swap/exchange
| Name | City | Exchange | Fill | Service type | Exchange or swap price | Tank with fuel in it price | Fill per gallon price | Source |
|---|---|---|---|---|---|---|---|---|
| AmeriGas Propane23730 Washington 3 C, Belfair, WA 98528(360) 275-4277 | Belfair, WA | Unknown | Yes (delivery) | Delivery (tank fill); exchange unknown | Unknown | Unknown | Unknown | AmeriGas office page |
| AmeriGas Propane900 Industrial Way, Ellensburg, WA 98926(509) 925-5277 | Ellensburg, WA | Unknown | Yes (delivery) | Delivery (tank fill); exchange unknown | Unknown | Unknown | Unknown | AmeriGas office page |
| AmeriGas Propane5387 La Bounty Dr, Ferndale, WA 98248(360) 384-4922 | Ferndale, WA | Unknown | Yes (delivery) | Delivery (tank fill); exchange unknown | Unknown | Unknown | Unknown | AmeriGas office page |
| AmeriGas Propane824 Mullis St, Friday Harbor, WA 98250(360) 378-2217 | Friday Harbor, WA | Unknown | Yes (delivery) | Delivery (tank fill); exchange unknown | Unknown | Unknown | Unknown | AmeriGas office page |
| AmeriGas Propane204 North Fruitland St, Kennewick, WA 99336(509) 582-8888 | Kennewick, WA | Unknown | Yes (delivery) | Delivery (tank fill); exchange unknown | Unknown | Unknown | Unknown | AmeriGas office page |
| AmeriGas Propane780 Highway 395 North, Kettle Falls, WA 99141(509) 738-6527 | Kettle Falls, WA | Unknown | Yes (delivery) | Delivery (tank fill); exchange unknown | Unknown | Unknown | Unknown | AmeriGas office page |
| AmeriGas Propane4509 152nd Street Northeast, Marysville, WA 98271(360) 657-7078 | Marysville, WA | Unknown | Yes (delivery) | Delivery (tank fill); exchange unknown | Unknown | Unknown | Unknown | AmeriGas office page |
| AmeriGas Propane668 West Oak St, Oak Harbor, WA 98277(360) 675-5939 | Oak Harbor, WA | Unknown | Yes (delivery) | Delivery (tank fill); exchange unknown | Unknown | Unknown | Unknown | AmeriGas office page |
| AmeriGas Propane2925 Black Lake Boulevard Southwest, Olympia, WA 98512(360) 352-7837 | Olympia, WA | Unknown | Yes (delivery) | Delivery (tank fill); exchange unknown | Unknown | Unknown | Unknown | AmeriGas office page |
| AmeriGas Propane52 E Columbia St, Othello, WA 99344-1835(800) 263-7442 | Othello, WA | Unknown | Yes (delivery) | Delivery (tank fill); exchange unknown | Unknown | Unknown | Unknown | AmeriGas office page |
| U-Haul Storage Of Interbay2601 15th Ave W, Seattle, WA 98119(206) 285-0860 | Seattle, WA | Unknown | Yes (refill station) | Refill station; exchange unknown | Unknown | Unknown | Unknown | U-Haul "Propane Refill Stations" listing |
| U-Haul Storage of Rainier Valley2515 Rainier Ave S, Seattle, WA 98144(206) 723-4365 | Seattle, WA | Unknown | Yes (refill station) | Refill station; exchange unknown | Unknown | Unknown | Unknown | U-Haul "Propane Refill Stations" listing |
| U-Haul Storage at North Division8805 N Division St, Spokane, WA 99218(509) 467-6537 | Spokane, WA | Unknown | Yes (refill station) | Refill station; exchange unknown | Unknown | Unknown | Unknown | U-Haul "Propane Refill Stations" listing |
| U-Haul Storage of Midtown21 W 3rd Ave, Spokane, WA 99201(509) 624-3147 | Spokane, WA | Unknown | Yes (refill station) | Refill station; exchange unknown | Unknown | Unknown | Unknown | U-Haul "Propane Refill Stations" listing |
| U-Haul at 12th & L1212 Earnest S Brazill St, Tacoma, WA 98405(253) 627-6116 | Tacoma, WA | Unknown | Yes (refill station) | Refill station; exchange unknown | Unknown | Unknown | Unknown | U-Haul "Propane Refill Stations" listing |
| U-Haul Moving & Storage of Parkland9601 Pacific Ave, Tacoma, WA 98444(253) 537-1065 | Tacoma, WA | Unknown | Yes (refill station) | Refill station; exchange unknown | Unknown | Unknown | Unknown | U-Haul "Propane Refill Stations" listing |
| U-Haul Storage at East Nob Hill2304 E Nob Hill Blvd, Yakima, WA 98901(509) 453-8110 | Yakima, WA | Unknown | Yes (refill station) | Refill station; exchange unknown | Unknown | Unknown | Unknown | U-Haul "Propane Refill Stations" listing |
| U-Haul Storage of Yakima1122 S 1st St, Yakima, WA 98901(509) 457-7161 | Yakima, WA | Unknown | Yes (refill station) | Refill station; exchange unknown | Unknown | Unknown | Unknown | U-Haul "Propane Refill Stations" listing |
How to lower your propane cost
How much does it cost to fill a 5-gallon propane tank in Washington?
About $13.19 for 5 gallons (5 x $2.638 per gallon), based on the EIA U.S. average (EIA has no separate Washington figure), week of Oct 12, 2026. Source: U.S. Energy Information Administration (EIA). Dealer prices vary; updates as new prices come in.
How much does it cost to fill a propane tank in Washington?
Multiply the per-gallon price by the gallons you need. A 500-gallon home tank is filled to about 80% (400 gallons), so at the shown average price that is roughly 400 x the price. Delivery fees and minimums vary by dealer.
Is a tank swap (exchange) cheaper than a refill?
Usually not per gallon. A 20 lb exchange cylinder often holds about 15 lb (about 3.5 gallons), so refilling at a dealer is typically cheaper per gallon. Exchange is faster and more convenient.
When is propane cheapest?
Prices usually dip in late spring and summer. Filling or pre-buying a season contract before October can lower your cost.
How can I lower my propane cost?
Compare dealers, ask about budget or pre-buy plans, own your tank so you can shop around, and improve insulation and thermostat settings.