What is the publisher Grosset and Dunlap current address?

Grosset and Dunlap is no longer an independent publisher. It was acquired by Penguin Random House in 1998.

You can find the address for Penguin Random House on their website, which is:

Penguin Random House

1745 Broadway

New York, NY 10019

This is the main address for the company. You can find additional addresses for specific departments or offices on their website.