Building Real World AngularJS apps, how should I declare my controllers in html. Do I need to declare all in the index.html?

I have an application based on e.g. the Northwind database, in which I have built views for each of the different objects to maintain them CRUD-ly, using AngularJS views and the in typical file structure adopted by most devs.

I have an issue I would like to improve, firstly from all examples I have seen, you need to declare your controller on an index.html file. If one module that a user uses does not require, all the other controllers, is it necessary to load all controllers on the client side. Is there a better way to only declare controllers that are need per view?

Is this the normal behaivor of a Single Page LOB, to preload all necessary dependencies, whether required or not?