Average Energy Prices, Seattle-Tacoma-Bellevue – August 2021

09/15/2021 | 03:42pm

News Release Information

Wednesday, September 15, 2021

Gasoline prices averaged $4.077 a gallon in the Seattle-Tacoma-Bellevue area in August 2021, the U.S. Bureau of Labor Statistics reported today. Regional Commissioner Chris Rosenlund noted that area gasoline prices were $1.410 higher than last August when they averaged $2.667 per gallon. Seattle area households paid an average of 11.7 cents per kilowatt hour (kWh) of electricity in August 2021, compared to the 11.4 cents per kWh paid in August 2020. The average cost of utility (piped) gas at $1.186 per therm in August was more than the $1.090 per therm spent last year. (Data in this release are not seasonally adjusted; accordingly, over-the-year-analysis is used throughout.)

At $4.077 a gallon, Seattle area consumers paid 21.7 percent more than the $3.351 national average in August 2011. A year earlier, consumers in the Seattle area paid 18.8 percent more than the national average for a gallon of gasoline. The local price of a gallon of gasoline has been within 21.7 percent of the national average in the month of August during the past five years. (See chart 1.)

The 11.7 cents per kWh Seattle households paid for electricity in August 2021 was 18.8 percent less than the nationwide average of 14.4 cents per kWh. Last August, electricity costs were 16.8 percent lower in Seattle compared to the nation. In each of the past five years during the month of August, prices paid by Seattle area consumers for electricity were less than the U.S. average by at least 16.8 percent. (See chart 2.)

Prices paid by Seattle area consumers for utility (piped) gas, commonly referred to as natural gas, were $1.186 per therm, or 6.4 percent below the national average in August 2021 ($1.267 per therm). A year earlier, area consumers paid 5.7 percent more per therm for natural gas compared to the nation. In the past five years, the per therm cost for natural gas in August in the Seattle area has varied between 6.4 percent below and 12.0 percent above the U.S. average. (See chart 3.)

The Seattle-Tacoma-Bellevue, Wash. metropolitan area consists of King, Snohomish, and Pierce Counties of Washington.

Technical Note

Average prices are estimated from Consumer Price Index (CPI) data for selected commodity series to support the research and analytic needs of CPI data users. Average prices for electricity, utility (piped) gas, and gasoline are published monthly for the U.S. city average, the 4 regions, 9 divisions, 2 population size classes, 8 region/size-class cross-classifications, and the 23 largest local index areas. For electricity, average prices per kilowatt-hour (kWh) are published. For utility (piped) gas, average prices per therm, are published. For gasoline, the average price per gallon is published. Average prices for commonly available grades of gasoline are published as well as the average price across all grades.

All eligible prices are converted to a price per normalized quantity. These prices are then used to estimate a price for a defined fixed quantity. The average price per kilowatt-hour represents the total bill divided by the kilowatt-hour usage. The total bill is the sum of all items applicable to all consumers appearing on an electricity bill including, but not limited to, variable rates per kWh, fixed costs, taxes, surcharges, and credits. This calculation also applies to the average price per therm for utility (piped) gas.

Information in this release will be made available to sensory impaired individuals upon request. Voice phone: 202-691-5200; Federal Relay Service: 800-877-8339.

Year and month Gasoline per gallon Electricity per kWh Utility (piped) gas per therm
Seattle area United States Seattle area United States Seattle area United States


$2.667 $2.245 $0.114 $0.137 $1.090 $1.031


2.689 2.260 0.114 0.137 1.089 1.064


2.627 2.228 0.113 0.135 1.092 1.067


2.608 2.159 0.113 0.136 1.175 1.104


2.647 2.235 0.114 0.136 1.175 1.114


2.726 2.391 0.114 0.136 1.175 1.119


2.871 2.559 0.114 0.137 1.175 1.124


3.165 2.856 0.114 0.138 1.175 1.144


3.321 2.907 0.116 0.139 1.175 1.166


3.448 3.041 0.116 0.140 1.186 1.201


3.832 3.245 0.116 0.142 1.186 1.219


4.013 3.326 0.117 0.143 1.186 1.241


4.077 3.351 0.117 0.144 1.186 1.267


BLS - U.S. Bureau of Labor Statistics published this content on 15 September 2021 and is solely responsible for the information contained therein. Distributed by Public, unedited and unaltered, on 15 September 2021 19:41:07 UTC.

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