Noun
one-horse town (plural one-horse towns)
(US, idiomatic) A very small town, especially one of a rural nature and/or offering very few or no attractions.
Synonyms: jerkwater town, one-blink town, Podunk; see also Thesaurus:remote place
It's surrounded by beautiful wilderness, but otherwise it's just a one-horse town.
It must be a real one-horse town.” Auger shook her head as she lit a cigarette. "It has wild ambitions of becoming a one-horse town. Alastair Reynolds
This poor little one-horse town. Mark Twain
Los Angeles is a one-horse town. It's entirely driven by the entertainment business and that's what it is. Jason Priestley