From Wiktionary, the free dictionary
From uptown + -er.
uptowner (plural uptowners)
- A person who comes from uptown.
2007 January 14, Will Hermes, “Indie Rock’s Patron Saint Inspires a New Flock”, in New York Times[1]:There was a healthy crowd: a mix of what looked like well-heeled uptowners, scruffy Brooklyn bohemians and clean-scrubbed Asian art students.