Location #1: Corleone compound
110 Longfellow Avenue, Staten Island, New York, United States
Location #2: Woltz International Pictures
Paramount Studios, 5555 Melrose Avenue, Los Angeles, California, United States
Location #3: Woltz’s mansion
1011 North Beverly Drive, Beverly Hills, California, United States
Location #4: Genco
128 Mott Street, Manhattan, New York, United States
Location #5: Best & Co.
5th Avenue (between 51st Street and 52nd Street), Manhattan, New York, United States
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From my own research I believe the diner where Sollozzo has Tom Hagen under custody was located at the corner of Christopher St & Washington St, New York (40.732469, -74.008913).
That whole lot was cleared circa 1975 and a new building was constructed there.