Some breeds are, like has already been mentioned, quieter than others. But overall, hens don't make the kind of noise, even at their most vocal, that is annoying to neighbors. Noise that carries over distance, like dogs barking and roosters crowing, is of the sort that gets on people's nerves.
However, you would do well to poll your neighbors to see if they would object to chickens' clucking and calling. I've found that this simple act will head off any potential "cranky neighbor" problem by virtue of having been asked their permission, as silly as it sounds. The big reason cranky neighbors behave in a crabby manner is usually due to their feeling like they're powerless. All they need in order to go along, is to be given a little power, even a very small bit by way of being asked if they would object.