Morris County Post Office

Find Morris County New Jersey post offices and USPS mailing boxes. Post offices provide information on bulk mail services, domestic mail delivery, international shipping, change of address, mail forwarding, PO boxes, and passport services.


Boonton Post Office 501 Main Street Boonton NJ 07005 973-334-2745


Brookside Post Office 2 East Main Street Mendham NJ 07926 973-543-7878

Budd Lake Post Office 1 Mount Olive Road Mount Olive NJ 07828 973-691-8011

Butler Post Office 180 Main Street Butler NJ 07405 973-839-8323

Cedar Knolls Post Office 2 Mountain Avenue Hanover NJ 07927 973-539-2312

Chatham Annex Post Office 219 Main Street Chatham NJ 07928 973-635-8400

Chatham Post Office 19 South Passaic Avenue Chatham NJ 07928 973-635-8400

Chester Post Office 1 Sentry Ln Chester NJ 07930 908-879-5095

Convent Station Post Office 11 Convent Road Morristown NJ 07960 973-538-0115

Denville Post Office 18 Church Street Denville NJ 07834 973-625-1700

Dover Post Office 22 North Sussex Street Dover NJ 07801 973-366-6750

East Hanover Post Office 315 Ridgedale Avenue East Hanover NJ 07936 973-887-0065

Flanders Post Office 240 US Highway 206 Mount Olive NJ 07836 973-584-3660

Florham Park Post Office 187 Columbia Turnpike Florham Park NJ 07932 973-377-5652

Gillette Post Office 594 Valley Road Gillette NJ 07933 908-647-3135

Green Village Post Office 372 Green Village Road Chatham NJ 07935 973-377-0737

Hibernia Post Office 328 Green Pond Road Rockaway NJ 07842 973-625-2257

Ironia Post Office 389 Dover Chester Road Randolph NJ 07869 973-584-5659

Jefferson Station Post Office 5716 Berkshire Valley Road Jefferson NJ 07438 973-208-5872

Kenvil Post Office 708 Route 46 Roxbury NJ 07847 973-584-4463

What Change of Address options are available?

Customers can request a temporary or permanent Change of Address either online or in person at the Post Office using PS Form 3575. The online application for Change of Address has a $1.00 identity validation fee.

Is it possible to insure mail and items sent via the USPS?

Yes. Standard mail can be insured for up to $5,000 for an additional fee. Registered mail items can be insured for up to $50,000.

What is the USPS Office of Inspector General?

The Office of Inspector General (OIG) is a division within the USPS responsible for ensuring the integrity and accountability of the postal service. It conducts investigations to safeguard the postal system and performs audits and reviews.