Sharply divided into North and South. The southern half of the county which is closer to the city is heavily population suburbs while the towns to the north are more rural. The "Southerners", like me, don't consider Northern Westchester to really be part of our county.
Somers and Peekskill aren't Westchester, they're in Upstate New York or the "hudson valley" or whatever you want to call it. And by the way, Lower Westchester is not part of the Hudson valley contrary to every travel guide known to man, the HV is somewhere upstate or something. Really, what do Yonkers and Poughkeepsie really have in common?