Of Cities, Size and People

I cant live in a large city/town. Maximum distance from one end to other should be not more than 45 mins. Why not 30? Why not 60? I dont have a number for it. I just dont want to spend a lot of time traveling. I want to know the people I want to know and not know the people I dont want to. I want to be as connected as I want to be. I want to have large enough social circle that keeps me busy and small enough to have time for myself. I want to be connected. And remote. I want ... !