Aghagallon ward is situated in the southern part of the Armagh City, Banbridge and Craigavon district, bordering Lough Neagh. The landscape is primarily rural, characterised by agricultural land and low-lying terrain shaped by the River Main and its tributaries. Settlement is dispersed, with the village of Aghagallon itself serving as a focal point alongside smaller hamlets and individual farmsteads.
The area's history is connected to its waterways and the lough shore, with former mill sites and ancient ecclesiastical settlements. The flat, open lands are used for mixed farming, and the lough shore influences local ecology. The ward maintains a quiet, residential character separate from the larger urban centres of the district.
