Cheapest Gas in Indianapolis, IN

Updated May 20, 2026 — Prices updated regularly from EIA data

$3.01

Lowest price at Costco in Indianapolis

Finding Cheap Gas in Indianapolis

The cheapest gas in Indianapolis right now comes from warehouse clubs and high-volume discount stations. With prices as low as $$3.01 versus a metro average of $$3.16, smart shoppers find real savings consistently.

Maximum Savings in Indianapolis

Choose Costco over Chevron

$0.25 per gallon

$3.75 per 15-gallon fill • $12.00 per year (est.)

Cheapest Brands in Indianapolis

Rank	Brand	Est. Price	Savings vs. Most Expensive
#1	Costco	$3.01	$0.25
#2	Speedway	$3.13	$0.13
#3	Circle K	$3.14	$0.12
#4	Sunoco	$3.17	$0.09
#5	Marathon	$3.18	$0.08
#6	BP	$3.20	$0.06
#7	Mobil	$3.21	$0.05
#8	Exxon	$3.22	$0.04
#9	Shell	$3.24	$0.02
#10	Chevron	$3.26	$0.00

Gas Saving Tips for Indianapolis Drivers

Join a warehouse club (Costco, Sam's Club, BJ's) — their fuel consistently runs 10-25 cents below local market prices. The membership cost typically pays for itself in fuel savings within the first two months.
Sign up for gas station loyalty apps — Shell Fuel Rewards, Marathon MakeItCount, and Circle K Inner Circle all offer genuine per-gallon discounts that compound over time.
Use a gas rewards credit card. The Costco Citi Visa earns 4% back on eligible gas; Blue Cash Preferred earns 3% at US gas stations. Pairing a reward card with a warehouse club maximizes savings.
Avoid filling up at highway exits, airports, and tourist areas where convenience premiums routinely add 15-25 cents per gallon.
Keep your tires properly inflated to the manufacturer's recommended PSI — under-inflated tires reduce fuel economy by up to 3%, costing you money every mile.