Cheapest Gas in Tacoma, WA

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

$3.73

Lowest price at Costco in Tacoma

Finding Cheap Gas in Tacoma

Smart Tacoma drivers know how to find cheap gas every fill-up. The current price spread in Tacoma is $$0.25 per gallon between the cheapest and most expensive stations — meaningful savings over a year of driving.

Maximum Savings in Tacoma

Choose Costco over Chevron

$0.25 per gallon

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

Cheapest Brands in Tacoma

Rank	Brand	Est. Price	Savings vs. Most Expensive
#1	Costco	$3.73	$0.25
#2	Speedway	$3.85	$0.13
#3	Circle K	$3.86	$0.12
#4	Sunoco	$3.89	$0.09
#5	Marathon	$3.90	$0.08
#6	BP	$3.92	$0.06
#7	Mobil	$3.93	$0.05
#8	Exxon	$3.94	$0.04
#9	Shell	$3.96	$0.02
#10	Chevron	$3.98	$0.00

Gas Saving Tips for Tacoma Drivers

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.
Check fuel prices across state lines if you regularly travel near a border. State fuel taxes vary by up to 50 cents per gallon — the savings from crossing into a lower-tax state can be dramatic.