How gas prices have changed in Phoenix in the last week

Stacker compiled statistics on gas prices in Phoenix-Mesa, AZ metro area using data from AAA. Gas prices are current as of April 20.

Phoenix by the numbers
- Gas current price: $4.70
--- Arizona average: $4.59
- Week change: -$0.13 (-2.7%)
- Year change: +$1.21 (+34.5%)
- Historical expensive gas price: $5.69 (6/15/22)

- Diesel current price: $5.90
- Week change: -$0.23 (-3.8%)
- Year change: +$2.38 (+67.4%)
- Historical expensive diesel price: $6.22 (4/8/26)

Metros with the least expensive gas
#1. Lawton, OK: $3.25
#2. Springfield, MO: $3.30
#3. Joplin, MO: $3.31

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