Cheapest Gas in Aberdeen, SD

Updated May 21, 2026 — Prices updated regularly from EIA data

$2.91

Lowest price at Costco in Aberdeen

Finding Cheap Gas in Aberdeen

Hunting down the lowest gas price in Aberdeen, South Dakota is worth the effort. At $$2.91 per gallon at the cheapest outlet versus $$3.16 at the most expensive, you save $$3.75 on every 15-gallon fill-up.

Maximum Savings in Aberdeen

Choose Costco over Chevron

$0.25 per gallon

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

Cheapest Brands in Aberdeen

Rank	Brand	Est. Price	Savings vs. Most Expensive
#1	Costco	$2.91	$0.25
#2	Speedway	$3.03	$0.13
#3	Circle K	$3.04	$0.12
#4	Sunoco	$3.07	$0.09
#5	Marathon	$3.08	$0.08
#6	BP	$3.10	$0.06
#7	Mobil	$3.11	$0.05
#8	Exxon	$3.12	$0.04
#9	Shell	$3.14	$0.02
#10	Chevron	$3.16	$0.00

Gas Saving Tips for Aberdeen Drivers

Check if your grocery store offers fuel rewards. Kroger, Safeway, Giant, and many regional chains discount gas by 10-50 cents per gallon tied to grocery spending thresholds.
Use regular unleaded unless your owner's manual specifically requires premium. For the majority of vehicles, there is zero performance benefit from a higher grade.
Plan fill-ups along your existing commute route rather than making special trips. A station you pass daily that is 10 cents cheaper beats a special detour to a slightly better price.
Pay cash at stations offering a cash vs. credit discount — typically 5-10 cents per gallon savings that adds up significantly over time.
Do not let your tank run below a quarter — low fuel levels increase wear on electric fuel pumps and can lead to emergency fill-ups at inconvenient and expensive stations.