NB: This is a question, very similar to Redux; accessing other parts... but it has nothing to do with Router :( thus cannot be solved s
You can try to use:
redux-named-reducers
Which allows you to get state anywhere in your code like so:
const localState1 = getState(reducerA.state1)
const localState2 = getState(reducerB.state2)
Works with combineReducers such that each reducer only handles local state but can access external state if needed.