from/on the wrong side of the tracks

from the wrong side of the tracks

From a part of a town or city that is particularly impoverished (and usually dangerous or undesirable as a result). I was always looked down on as a kid because I was from the wrong side of the tracks. His mother didn't want him dating anyone from the wrong side of the tracks.
See also: of, side, track, wrong

on the wrong side of the tracks

In a part of a town or city that is particularly impoverished (and usually dangerous or undesirable as a result). His mother constantly warned him about spending time on the wrong side of the tracks.
See also: of, on, side, track, wrong
Farlex Dictionary of Idioms.

from the wrong side of the tracks

If someone comes from the wrong side of the tracks, they come from a poor or unfashionable area of town. I know kids back home who come from the wrong side of the tracks. When they go to school, they haven't eaten and their clothes are all torn. Note: Railway tracks sometimes mark boundaries between different parts of a town, for example between richer and poorer areas.
See also: of, side, track, wrong
Collins COBUILD Idioms Dictionary, 3rd ed.

from/on the ˌwrong side of the ˈtracks

(informal) from or living in a poor area or part of town: She married a man from the wrong side of the tracks.
See also: of, on, side, track, wrong
Farlex Partner Idioms Dictionary
See also:
  • from the wrong side of the tracks
  • on the wrong side of the tracks
  • other side of the tracks
  • side of the tracks
  • the other side of the tracks
  • the wrong side of the tracks
  • wrong side of the tracks
  • wrong side of the tracks, the
  • ghetto
  • ghetto bird