Seattle City Wire

The average cost for a gallon of diesel gas in or near zip code 37990 for the week of June 15-21 is $2.99, according to GasBuddy.com. The lowest price is $2.99.

In greater Seattle, the average price is $2.82 and the lowest price is $2.25. Trends show the price as up.

The average price of unleaded gas in the state is $2.701 per gallon. The previous week, the state average was $2.633 per gallon. The average has increased since last month, when it was $2.551 per gallon – a 15.0 cent difference.Last year, the average price for a gallon of gas was $3.423.

Data is accurate as of press time, but gas prices have been known to fluctuate on a daily, and even hourly, basis.