Gas Prices in Chattanooga, TN Today
Chattanooga drivers are paying around $3.15–$3.22 per gallon for regular as of late March 2026 — among the lowest prices of any city in the Southeast, running more than 70 cents below the national average of $3.91. Tennessee's low gas tax combined with Chattanooga's position at a major interstate junction creates a fuel market that consistently undercuts neighboring Georgia and outpaces even other Tennessee cities on price.
Tennessee's Gas Tax Advantage
Tennessee charges a state gas tax of 26.4 cents per gallon — one of the lowest in the eastern United States. Georgia, just a few miles south of Chattanooga, charges 31.2 cents. That 5-cent structural gap means Chattanooga typically prices below Dalton and Rome, Georgia, the nearest Georgia metros, even though the markets draw from the same Gulf Coast refined product supply.
Tennessee also has no broad-based income tax, which shapes the state's overall cost structure in ways that keep consumer prices — including fuel — competitive relative to neighboring states. Chattanooga has no city-level fuel surcharge.
I-24 and I-75 — Dual Interstate Competition
Chattanooga is the only city in the Southeast where I-24 and I-75 converge. I-24 runs from Nashville northeast to Chattanooga before crossing into Georgia; I-75 runs from Michigan south through Knoxville, Chattanooga, and into Atlanta. The junction makes Chattanooga a high-volume refueling stop for long-haul truckers and travelers on two of the region's busiest corridors.
That dual-interstate traffic concentration means stations near the I-24/I-75 junction on the north end of the city — particularly near the signal mountain exits and the Lookout Mountain interchange — compete aggressively. Travel plaza and truck stop pricing ripples outward from those interchanges and keeps the entire metro market disciplined.
Where to Find Cheaper Gas in Chattanooga
The cheapest gas consistently shows up near the interstate corridors and in the East Ridge and Hixson suburban areas where station density is highest. Downtown and the North Shore corridor trend higher.
- 37402 — Downtown Chattanooga, lowest competition, highest prices
- 37403 — UTC campus / Southside, mid-range
- 37404 — East Chattanooga / Brainerd Road, competitive suburban corridor
- 37405 — North Shore / Hixson Pike, solid mid-range options
- 37406 — Brainerd / East Ridge adjacent, strong independent presence
- 37411 — East Ridge / Ringgold Road, Georgia border proximity, competitive
- A fuel system cleaner every few months keeps your engine running efficiently and can noticeably improve MPG.
- A roadside emergency kit is worth keeping in the trunk — especially if you're driving further to save on gas.
The Georgia Border Direction
Unlike some border markets where crossing the state line saves money, Chattanooga drivers heading south into Georgia will typically find prices 5–10 cents higher — not lower. That's the tax structure in action. Georgia stations can't compete with Tennessee pricing, which means Dalton and Ringgold drivers actually benefit from driving north into Chattanooga to fill up. If you're heading south on I-75 toward Atlanta, consider filling the tank before you cross the state line at Exit 1.
Warehouse Clubs and Sam's Club
A Costco in the Hamilton Place area prices 20–30 cents below the Chattanooga metro average. For a city where street prices are already low, that's an extraordinary deal — Costco members can fill up in the low-to-mid $2.90s during favorable crude cycles. Sam's Club on Gunbarrel Road is another consistent low-cost option, particularly for east-side residents.
Outlook
Chattanooga's favorable tax structure and interstate competition insulate it from national crude swings better than most markets. The current Iran-related spike that's pushed the national average to $3.91 has had a muted effect locally. Expect prices to hold in the $3.15–$3.25 range through spring, with a modest 8–10 cent uptick when summer blend requirements arrive in April.
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