 Wrexham is also famed for the quality of its underground water reserves, which gave rise to its previous dominance as a major brewing centre.Originally a market town with surrounding urban villages, Wrexham has now coalesced with a number of urban villages and forms North Wales' largest conurbation, including its western and south western suburban villages.The conurbation including Wrexham, Rhosllannerchrugog, Coedpoeth and Llay built-up areas totals over 100,000 residents.