How gas prices have changed in St. Louis in the last week

Stacker compiled statistics on gas prices in St. Louis (MO only) metro area using data from AAA. Gas prices are current as of July 20.

St. Louis by the numbers
- Gas current price: $3.66
--- Missouri average: $3.65
- Week change: +$0.16 (+4.7%)
- Year change: +$0.73 (+24.7%)
- Historical expensive gas price: $4.88 (6/14/22)

- Diesel current price: $4.44
- Week change: +$0.11 (+2.4%)
- Year change: +$1.06 (+31.1%)
- Historical expensive diesel price: $5.69 (5/6/26)

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.