Well, it depends on the obvious variables the actual firearm, clothing, season, environment. It could vary from pants pocket , jacket pocket, IWB or OWB holsters.
I usually carry my LCP in my left pocket in an Uncle Mikes. All other carry guns are at 8 o'clock in an OWB holster (I'm a lefty). My holster of choice for my other carry guns is a Galco Fletch holster.
Working in Uniformed Patrol with the LE agency I serve: Left hip, since I'm a southpaw. Off-duty: Same exact location, but in a IWB concealed by my shirt. I subscribe to the theory that if you always carry in the same spot, there's no confusion about where to put your hand when trouble finds you.