Petrol stations in Monaghan37 forecourts on the map, 5.71 per 10,000 residents.

With 64,832 residents and 37 mapped stations, Monaghan has 5.71 forecourts per 10,000 people. In the county table of forecourts per head, Monaghan comes 2nd; the figure for the whole Republic is 3.28. On land area alone (1,289 km²), stations in Monaghan sit one per 35 km².

On the map, 8 Top Oil forecourts make that brand the largest in Monaghan, at 22%; Circle K (7) and Applegreen (4) complete the top three. The map leaves 7 sites without a brand, typically independents or forecourts not yet fully tagged.

None of the mapped forecourts in Monaghan is tagged as open through the night, so late fills are worth planning. HGV diesel is recorded at 2 of the Monaghan sites.

Within driving distance of Monaghan, the Consumer Council's town averages for 1 Oct 2026 read Armagh (9 km away) diesel €2.342, petrol €1.982; Dungannon (17 km away) diesel €2.183, petrol €1.958; and Newry (19 km away) diesel €2.354, petrol €2.005; the national petrol average south of the border was €1.972. The full comparison is on fuel prices North and South.

Address tags put the biggest concentrations in Castleblayney (5), Carrickmacross (4) and Monaghan (4).

The neighbours are where to fill up in Cavan, petrol stations in Louth, petrol stations in Meath, the Longford station list, and the national overview lives on every mapped forecourt.