ZIP
Loading prices
LiveUpdated May 21
Gas prices near 02138
Cambridge, MA · MA average $4.29/gal
Gas prices in Cambridge, MA 02138 fluctuate based on market conditions and individual station pricing. As part of the Boston area, Cambridge sees prices influenced by regional supply and Northeast fuel costs. Check current prices regularly since rates change frequently across different stations throughout the city and surrounding Middlesex County communities.
Nearby ZIP codes in Cambridge, MA
How to save more on gas in Cambridge
1. Use warehouse clubs
Costco and Sam’s Club typically price 15-25 cents per gallon below nearby stations. Membership pays for itself within a few fill-ups.
2. Fill up early in the week
Stations often raise prices Thursday for weekend demand. Fill up Monday through Wednesday to avoid the lift.
3. Keep tires properly inflated
Properly inflated tires improve fuel economy by up to 3 percent at current prices. Check pressure once a month.
4. Check back tomorrow
Prices can shift 10-20 cents overnight during volatile markets. A quick check before you leave home avoids paying yesterday’s spike.
5. Pay cash at split-pricing stations
Stations with cash and credit split pricing typically save an average of 10 cents per gallon when you pay cash.
Related guides
Deep-dives on US gas-price topics relevant to this area.
Brand
Sam's Club gas prices
Member-only fuel pricing at Sam's Club warehouse-club locations.
Research
Diesel vs gasoline economics in 2026
Why diesel costs more than gas now. Refining yield and global demand.
Research
Federal gas tax holiday economics
Pass-through math, refiner-margin capture, and why political timing matters.
Directory
US gas station brands directory
Reference for 39 major US gas station chains.
About gas prices in Massachusetts
Massachusetts charges roughly 27 cents per gallon in state gas tax, lower than New England average, but the Boston metro pulls heavily from RFG-required terminals in Everett and Braintree, which keeps prices closer to neighboring Connecticut and Rhode Island. The state is reliant on pipeline imports through Massachusetts Coastal and tanker shipments to Boston Harbor, leaving prices sensitive to ICE marine fuel disruptions. Costco, Sam's Club, BJ's Wholesale (founded in Massachusetts), Cumberland Farms, and Stop & Shop fuel are typically the cheapest options across Boston and the rest of the state.