Gas Prices in Port Jefferson
No price data for Port Jefferson yet
Find the cheapest gas prices in Port Jefferson, Suffolk County today. We track gas stations across Port Jefferson and update prices daily using GasBuddy data. Port Jefferson is located in Suffolk County on Long Island, near Route 25A, Route 112, Main Street. Compare regular, mid-grade, premium, and diesel prices below to save on your daily commute.
No stations with price data yet.
Browse all Long Island gas pricesPort Jefferson Gas Price Context
The Suffolk County average for regular is currently $3.92/gal versus $3.90 across all of Long Island. If your commute runs along Route 25A or Route 112, check prices at both ends of the trip — the spread between the cheapest and priciest Long Island stations is regularly more than a dollar per gallon, and warehouse clubs (Costco, BJ's) reliably sit at the bottom of the table. Hit a pothole on the way? The Port Jefferson tire shop directory shows live open-now status, and our roadside safety analysis covers what to do if it happens on a parkway.
FAQ — Gas in Port Jefferson
Where is the cheapest gas near Port Jefferson right now?
Check the island-wide ranking on our Cheapest Gas on Long Island page — it lists every reporting station from cheapest to priciest.
Is gas in Suffolk County cheaper than the Long Island average?
Suffolk County currently averages $3.92/gal regular versus $3.90 island-wide — slightly above the Long Island average. Individual stations matter more than averages: the island-wide spread is often more than a dollar per gallon.
How often are Port Jefferson gas prices updated?
Prices are pulled from crowd-reported and posted-price feeds and republished throughout the day — this page was last rebuilt Jun 30, 10:34 PM. Each station card shows regular, midgrade, premium, and diesel where reported.