Cheap Fuel in Carmarthenshire
Where is the cheapest fuel in Carmarthenshire today? We rank all 43 forecourts in this county by price, cheapest first, using prices reported to the Government's Fuel Finder service in the last 30 days.
Cheapest Carmarthenshire Forecourts Today
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Forecourts by Nearest Town
Driving Through Carmarthenshire?
Check live M4 traffic news before you set off — then fill up where it's cheapest on your way.
Why We Do This
Finding cheaper fuel in Carmarthenshire shouldn't take a spreadsheet. That's why we're here. Around 190,800 people live in Carmarthenshire. Picture 10% of them each saving 1p a litre: that's about £134,000 a year, or about £672,000 at 5p a litre.
Prices change every day, so it pays to check before you set off. We show the cheapest first, so it only takes a moment.
Want to save more? Our tips for saving fuel can cut what you use, as well as what you pay.
Based on: population 190,800 (ONS, mid-2024; via citypopulation.de); 6,200 miles a year for an average petrol car (DfT National Travel Survey 2024, NTS0901); 40 mpg (our assumption) = about 704 litres a year each. Figures rounded down.
All Forecourts in Carmarthenshire
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