Mountainside Post Office
604 Sherwood Pkwy, Mountainside, NJ 07092
Phone: 908-233-0148
Fax: 650-577-4371
TTY: 877-889-2457
Toll-Free: 1-800-Ask-USPS® (275-8777)
PO Box Access Available
Monday 8:00am - 4:30pm
Tuesday 8:00am - 4:30pm
Wednesday 8:00am - 4:30pm
Thursday 8:00am - 4:30pm
Friday 8:00am - 4:30pm
Saturday 8:00am - 4:00pm
Sunday Closed
Monday 3:00pm
Tuesday 3:00pm
Wednesday 3:00pm
Thursday 3:00pm
Friday 3:00pm
Saturday 3:00pm
Sunday Closed
*This facility does not process US Passports applications or renewals. Check nearby locations below.
- Burial Flags
- Business Line
- Business Reply Mail Account Balance
- Business Reply Mail New Permit
- Duck Stamps
- Money Orders (Domestic)
- Money Orders (Inquiry)
- Money Orders (International)
- Pickup Accountable Mail
- Pickup Hold Mail
- PO Box Online
- Lot Parking
Visit our Links Page for Holiday Schedule, Change of Address, Hold Mail/Stop Delivery, PO Box rentals and fees, and Available Jobs.
*Please call to verify information. Is anything incorrect? Let us know here
Nearby Post Offices:
Westfield
153 Central Ave
0.6 mile away
Garwood
202 Center St
1.2 miles away
Fanwood
275 South Ave
1.7 miles away
Cranford
3 Miln St
1.8 miles away
Union County