Gas Prices in Indianapolis, IN
Updated May 21, 2026 · AAA data · Regular unleaded
Gas Prices in Indianapolis
Indianapolis is one of the cheapest major US metros for gas, sitting in the Midwest refinery corridor with good pipeline access and strong Speedway and Marathon competition. The city's car-centric design means residents drive more than average, making the low per-gallon cost particularly impactful.
Prices at individual stations can vary by 5–15 cents within the same city depending on brand, location, and local competition. Use apps like GasBuddy to find the cheapest station near you in Indianapolis.
Frequently Asked Questions
What is the gas price in Indianapolis right now?
The average regular unleaded price in Indianapolis, Indiana is $4.050/gal as of May 21, 2026. Station prices vary — expect a range of roughly $3.950 to $4.170 across the metro area.
Why is Indianapolis gas so cheap?
Indianapolis has Indiana's moderate 32¢ state tax (much less than neighboring Illinois), excellent Midwest pipeline access, and Speedway's headquarters presence which drives competitive pricing throughout the market. The flat terrain and centralized distribution reduce logistics costs.
Where is cheapest gas in Indianapolis?
Speedway stations are pervasive and competitive. Costco in Castleton and Greenwood offers excellent prices for members. Murphy USA at Walmart locations in the suburbs typically run below the city average.
When is the cheapest day to buy gas in Indianapolis?
Nationwide data shows Monday and Tuesday tend to have slightly lower gas prices before weekly demand picks up. Avoid buying gas Thursday through Saturday when prices are typically higher.