Updated April 5, 2026 — Prices updated regularly from EIA data
Route • 1 states
About Interstate 610
The Houston Inner Loop running 38 miles around central Houston, TX. Given Texas's 20-cent fuel tax — one of the lowest in America — and Houston's status as the global energy capital, gas prices along I-610 are consistently among the cheapest in any major US metro.
The average gas price along Interstate 610's route today blends prices from all the states the highway passes through. This blended average reflects both high-price and low-price state markets along the full corridor.
Interstate 610 spans 1000 miles across multiple states. For a vehicle averaging 28 MPG highway, the fuel cost varies significantly depending on which states and price zones the route covers.
Interstate 610 passes through or near major cities where competitive fuel markets and warehouse clubs offer the best prices. Look for Costco, Sam's Club, or high-volume discount stations in each major metro along your route.
A 2-mile detour to save 20 cents per gallon on a 15-gallon fill-up saves $3. With a car getting 28 MPG, the detour uses 0.14 gallons. Detours above 3-4 miles for savings under 20 cents per gallon are generally not worthwhile.
The cheapest gas along Interstate 610 is generally found in Texas, where lower fuel taxes and proximity to refineries or pipelines keep prices down. Avoid fueling at highway-exit stations in Texas, where tourist premiums push prices 15-25 cents above the best nearby rates.