Gas Prices in Charleston, SC Today

Updated April 5, 2026 — Prices updated regularly from EIA data

$3.03

Average Regular Unleaded — Charleston, South Carolina

Current Gas Prices in Charleston

The average cost to fill up in Charleston, South Carolina is $$3.03 per gallon for regular gas right now. Compared to the national average, Charleston drivers are paying $0.96 below the national average, reflecting local market dynamics.

Fuel TypePrice / GallonGradeTrend
Regular Unleaded$3.0387 octane▲ Rising
Mid-Grade$3.5089 octane▲ Rising
Premium$3.7891-93 octane▲ Rising
Diesel$4.10N/A▲ Rising

Price Comparison

Charleston Average
$3.03
Regular Unleaded
South Carolina State Average
$3.06
$0.03 below the South Carolina average
National Average
$3.99
$0.96 below the national average

About Gas Prices in Charleston

The Charleston fuel market reflects South Carolina's broader pricing environment while adding local demand characteristics. With a growing population and rising commuter traffic, demand pressure in Charleston is steady. Warehouse club stations and discount brands regularly beat street prices by 10-20 cents per gallon.

Gas Prices by Brand in This City

Estimated prices based on brand modifiers. Sorted cheapest to most expensive.

CHEAPEST
Costco
$2.88
Speedway
$3.00
Circle K
$3.01
Sunoco
$3.04
Marathon
$3.05
BP
$3.07
Mobil
$3.08
Exxon
$3.09
Shell
$3.11
Chevron
$3.13

Fuel Type Prices in This City

Regular Unleaded
87 octane
Premium Gasoline
91-93 octane
Diesel Fuel
N/A

Gas Prices in Nearby Cities

North Charleston$3.00Savannah$2.93
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Frequently Asked Questions

Each gallon of gas in Charleston, South Carolina includes 18.4 cents in federal excise tax plus {tax} cents in South Carolina state fuel tax — a combined {totalTax} cents per gallon. On a 15-gallon fill-up, you pay ${taxTotal} in fuel taxes alone.
Today's average gas price in Charleston is $$3.03 per gallon for regular unleaded. Premium is approximately ${premPrice} and diesel runs ${dslPrice}. Individual station prices vary by 15-25 cents across the metro area.
The cheapest gas in Charleston is typically found at warehouse clubs (Costco, Sam's Club), high-volume discount chains like Circle K and Speedway, and stations in commercial strips with multiple competitors. Our brand comparison table shows current estimated prices by major brand in Charleston.
Charleston's current average of $$3.03 compares to the South Carolina statewide average of $$3.06. Charleston is $0.03 below the South Carolina average the state average, which is typical for a metro of its size and location.
Gas stations in Charleston typically update prices 1-3 times per week in response to wholesale market changes. Prices generally dip early in the week and rise Thursday-Sunday. Following weekly trends helps identify optimal fill-up windows.

Related Gas Price Pages

Gas Prices in South CarolinaCheapest Gas in CharlestonGas Prices Near CharlestonCompare All StatesRegular Unleaded in CharlestonPremium Gasoline in CharlestonDiesel Fuel in CharlestonShell - CharlestonExxon - CharlestonBP - CharlestonChevron - CharlestonMobil - CharlestonGas Prices in North CharlestonGas Prices in Savannah