From Longman Dictionary of Contemporary Englishtownietown‧ie /ˈtaʊni/ noun [countable] informal SSLIVE SOMEWHEREsomeone who lives in a town or city and does not know anything about life in the countryside
Examples from the Corpus
townie• Billy the Kid worked as a cowboy, but he was more a townie than a frontiersman.• Not surprisingly, townies tell pollsters they wish they lived there, too.• But Ilkley Moor, however exhilarating for us townies, forms only the nursery slopes of the Yorkshire Dales.• Or maybe you townies don't know. 