In a message dated 4/17/03 2:26:41 PM Eastern Daylight Time, [log in to unmask] writes:

No matter how much I picture in my mind that the action of "Prufrock"
is taking place in Paris, the city that Eliot pictured in his mind
must have been Boston.

I believe it was Boston, too.  "In the room the women come and go, talking of Michaelangelo" is also more indicative of the affected airs of the wealthy female set who lived in Boston at that time than of their Parisian counterparts.