The total population of Iceland is 357,000 with 217,000 in Reykjavic and Suburbs.   Akureyri is the second-largest city with 18,000, so you won't see much in the way of cities and towns on this flight.  The max altitude you will need is 4,500 so fly low and enjoy the views.  Important: Before taking off go to Flight Conditions and make sure you fly in the summertime.