Gas Prices in Charleston, SC Today

Charleston and the Lowcountry are averaging around $3.38 per gallon for regular unleaded as of mid-March 2026. South Carolina has historically had some of the cheapest gas in the eastern United States, and even with the recent nationwide surge, the state remains below the national average. Prices have jumped roughly 84 cents in the past month, but Charleston drivers are still paying less than most East Coast metros.

Why South Carolina Gas Is Cheap

South Carolina's gas tax, 28.75 cents per gallon, is one of the lowest in the country. The state only raised its gas tax in 2017 after decades of keeping it among the nation's lowest, and it remains well below neighbors like North Carolina (40.5 cents) and Georgia (29.1 cents plus additional fees).

Charleston benefits from proximity to the Colonial Pipeline and the Southeast's fuel distribution network. Refined product from Gulf Coast refineries reaches the South Carolina market efficiently. The Port of Charleston also handles fuel imports, giving the local market an additional supply buffer that some inland Southeast cities lack.

Where to Find Cheaper Gas in Charleston

The tri-county metro, Charleston, Berkeley, and Dorchester counties, has significant price variation. Suburban areas with higher station density consistently beat the peninsula and beach communities.

• North Charleston / Rivers Ave corridor, 29406, 29418, highest station density in the metro, consistently cheapest
• Summerville / Jedburg, 29483, 29485, western suburbs, strong Walmart and Murphy USA presence
• Goose Creek / Hanahan, 29445, 29410, near the naval weapons station, competitive pricing
• West Ashley, 29407, 29414, Sam Houston Edwards corridor has solid options
• Mount Pleasant, 29464, 29466, slightly pricier than the west side but still reasonable
• Avoid: Downtown peninsula, Folly Beach approach, Isle of Palms, tourist-area stations charge 20–40 cent premiums

Hurricane Season and Price Spikes

Charleston's coastal location creates a seasonal price dynamic that inland cities don't face. When hurricanes threaten the Southeast coast, typically August through October, Charleston sees preemptive price spikes from panic buying and supply chain disruptions. Stations near evacuation routes along I-26 toward Columbia can spike 50 cents or more in a single day.

The practical takeaway: keep your tank above half during active hurricane season. When a named storm enters the Gulf or Atlantic, fill up immediately, waiting even 12 hours can mean significantly higher prices or empty stations.

The I-95 Corridor Advantage

Charleston is close enough to the I-95 corridor that drivers heading north or south can take advantage of the competitive pricing at travel centers along the interstate. Stations in Hardeeville, Santee, and Florence, all along I-95, frequently undercut metro Charleston prices by 5–15 cents. Road trippers should plan their fill-ups accordingly.

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