Green’s Dictionary of Slang

front n.2

1. (US) in carnivals, an attraction.

A.T. Rogers ‘Casual Obersver’ in Charlotte Obs. (NC) 24 Feb. 8/7: Show managers [...] squawk about how the adjoining fronts crab the bally.

2. (US black) a social centre.

M. Fulcher ‘Believe Me’ in Afro-American (Baltimore, MD) 3 Nov. 10/3: [O]ne of the prettier browns on the Brooklyn front.
[US]L. Durst Jives of Dr. Hepcat (1989) 5: The pad is loaded with hipsters from all fronts, mad aces in their places, cool chicks strictly the lick, fine and most bulling.