What is the meaning of Townie?

A person living in a university area who is not associated with the university.

A person who has moved from a town or city to a rural area. Especially, one who is perceived not to have adopted rural ways.

A person familiar with the town (urbanised centre of a city) and with going out on the town; a street-wise person.

A chav.

A working-class citizen in a metropolitan area.

A person who lives in a city or town, or has an urban outlook.

Source: wiktionary.org