How Much Is Propane Per Gallon in Washington State?

Propane serves as a reliable energy source for many homes and businesses, especially in regions beyond the reach of natural gas infrastructure. While it offers versatility for heating, cooking, and powering appliances, the cost of propane can shift due to various market forces. Understanding these fluctuations is important for managing energy expenses. This article provides insight into the factors that determine propane prices in Washington State and outlines strategies consumers can use to potentially reduce their costs.

Key Factors Influencing Prices

Propane prices are influenced by a complex interplay of market conditions, similar to other commodities. Global crude oil and natural gas prices play a significant role, as propane is a byproduct of their processing. Fluctuations in these primary energy markets can directly impact the cost of propane for suppliers and, subsequently, for consumers.

Seasonal demand is another major driver of price changes. Propane usage typically peaks during colder winter months for heating, leading to increased demand and often higher prices. Conversely, prices tend to be lower in warmer months, generally between May and August, when residential heating demand decreases.

The method and volume of delivery also affect the per-gallon price. Bulk deliveries to large, permanent tanks often result in a lower per-gallon cost compared to smaller cylinder refills, as fixed delivery expenses are spread across more gallons. Suppliers may offer better pricing for customers who purchase larger quantities annually.

Geographic location within Washington State can introduce price variations due to transportation costs and local market competition. Areas further from supply hubs or or with fewer competing suppliers might experience higher prices. The number of local suppliers can influence pricing, as a more competitive market may drive prices down.

Furthermore, the type of contract a customer enters into, such as fixed-price or variable-price agreements, impacts the rate paid. Fixed-price contracts lock in a rate for a set period, offering predictability, while variable-price contracts fluctuate with market conditions.

Typical Propane Prices Across Washington State

In Washington State, the average cost of propane ranges from $1.63 to $1.66 per gallon as of August 2025. This statewide average reflects a dynamic market influenced by the factors previously discussed.

However, specific metropolitan areas and regions within Washington exhibit their own price points. For instance, as of August 2025, propane prices were observed at $1.74 per gallon in Seattle and Bellevue, $1.69 in Spokane, $1.64 in Tacoma, and $1.52 in Kennewick. These variations underscore the impact of local distribution costs and regional supply-demand dynamics.

Historically, propane prices can fluctuate significantly, particularly between seasons. For example, during the two heating seasons prior to August 2025, the average propane price was around $2.30 per gallon, reflecting typical increases during peak demand. In contrast, summer prices in 2021 were reported around $1.31 per gallon, reflecting seasonal differences.

It is important to recognize that these figures represent typical prices and are subject to change based on market conditions at any given time. The actual price a consumer pays will depend on their specific supplier, contract terms, and usage patterns.

How to Find Current Prices

Contact multiple local propane providers for current quotes for delivery to your location. When seeking a quote, have tank size and estimated annual usage ready, as these details influence pricing.

Beyond direct inquiries, some online resources can provide general price information. The U.S. Energy Information Administration (EIA) offers data on residential propane prices, updated monthly or weekly depending on the season. While not real-time local quotes, these national and regional averages can offer a useful benchmark for understanding broader market trends.

Online price comparison tools exist that connect consumers with local propane dealers. These platforms allow users to input their location and usage details to receive bids from multiple certified suppliers. Exploring community forums or local social media groups can also offer insights into local supplier experiences and price discussions.

Strategies for Saving on Propane

Implementing various strategies can help consumers manage and potentially reduce their propane costs. Consistently shop around for the best price by obtaining quotes from several suppliers before committing to a delivery or contract. Prices are not regulated and can vary significantly between companies.

Considering volume discounts can lead to lower per-gallon costs, as larger deliveries typically come with more favorable rates. Consumers with adequate storage capacity might benefit from filling their tanks during off-peak seasons, like summer, when demand is lower and prices tend to be more competitive.

Entering into specific contract types, such as pre-buy programs or fixed-price contracts, can offer price stability. Pre-buy options allow consumers to purchase a set amount of propane at a locked-in price for future delivery, while fixed-price contracts guarantee a consistent rate for a defined period, protecting against market spikes. Alternatively, budget plans can spread estimated annual costs into predictable monthly payments.

The decision to own or lease a propane tank also impacts cost. Owning a tank provides the freedom to choose any supplier that services customer-owned tanks, potentially leading to more competitive pricing. In contrast, leasing a tank typically ties a customer to the providing supplier, though it often includes maintenance and repair responsibilities for the supplier.

Improving energy efficiency within the home directly reduces propane consumption. This includes maintaining appropriate thermostat settings, ensuring adequate insulation in walls and attics, sealing drafts around windows and doors, and regularly servicing propane appliances like furnaces and water heaters. These measures significantly lower overall usage and heating bills.