How gas prices have changed in Mount Vernon in the last week

Stacker compiled statistics on gas prices in Mount Vernon-Anacortes, WA metro area using data from AAA. Gas prices are current as of July 20.

Mount Vernon by the numbers
- Gas current price: $4.71
--- Washington average: $5.01
- Week change: +$0.03 (+0.7%)
- Year change: +$0.49 (+11.6%)
- Historical expensive gas price: $5.68 (5/22/26)

- Diesel current price: $5.78
- Week change: +$0.26 (+4.7%)
- Year change: +$0.89 (+18.3%)
- Historical expensive diesel price: $6.80 (4/12/26)

Metros with the least expensive gas
#1. Clarksville, IN: $3.25
#2. Evansville, IN: $3.27
#3. Columbus, IN: $3.28

Read on to see which metros have the most expensive gas prices.