Harpenden

At the bottom of the local market, unleaded starts around 147p per litre right now. The very top of the local range is set by a small number of expensive outliers, and most stations sit much closer together than the headline gap suggests.

The supermarket sites, including Morrisons, tend to set the floor for prices here. 1 of the 13 local forecourts are supermarket-run, and the rest split between branded and independent operators.

EG around Flamstead Filling Station has been setting the cheapest unleaded price locally of late. Several of the busier sites sit along Verulam Road and Luton Road, so you can check them against each other without leaving your usual route.

Average unleaded here tracks the wider East of England figure closely. For diesel, expect an average of roughly 174p per litre locally.

Everything within about 8 km of the centre is included, so edge-of-town and retail park sites appear alongside the central forecourts. Prices in Harpenden can move mid-week as well as at weekends, so the ordering above is worth a glance even if you always use the same forecourt.

The table below carries the exact live figures per station, and alerts can flag a drop at the forecourts you actually use.