In the novel, does the town of Maycomb change its ways after Atticus' efforts?

There is no real way of knowing whether "the town of Maycomb" changes its ways as a result, but we can certainly look at the actions of a few of its members after the trial to get some idea of the answer. First, the women at the ladies' meetings can, perhaps, be considered good representatives of the town. As Scout helps at the party in Chapter 24, she observes the facade of the women pretending to be concerned with Africa while talking down to their own servants and saying things like "there's nothing more distracting than a sulky darky" and "we can educate 'em till we're blue in the face . . . but there's no lady safe in her bed these nights" (232). Then there are the prison guards who kill Tom Robinson. "They fired a few shots in the air, then to kill. . . . Seventeen bullet holes in him. They didn't have to shoot him that much" (235). Their reactions can be taken to show that they most certainly have not changed. But on the flip side, there is a real change in Boo Radley who leaves his home to save Jem and Scout from a murderous Ewell. I'm afraid that aside from Atticus and family (as well as a few select others), Lee doesn't leave us with a very positive image of the world. Suddenly we hear the voice of Jem echo, "I think I'm beginning to understand why Boo Radley's stayed shut up in the house all this time . . . it's because he wants to stay inside" (227). But then again, perhaps the change of a few is just enough to save our world.