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Postal New Castle Post Office
73 Main St, New Castle, NH 03854
Phone: 603-436-3485
TTY: 877-889-2457
Toll-Free: 1-800-Ask-USPS® (275-8777)
PO Box Access Available
Monday 6:30am - 5:00pm
Tuesday 6:30am - 5:00pm
Wednesday 6:30am - 5:00pm
Thursday 6:30am - 5:00pm
Friday 6:30am - 5:00pm
Saturday 6:30am - 12:00pm
Sunday Closed
Monday 4:45pm
Tuesday 4:45pm
Wednesday 4:45pm
Thursday 4:45pm
Friday 4:45pm
Saturday 11:45am
Sunday Closed
Monday 7:00am - 12:00pm, 2:30pm - 4:00pm
Tuesday 7:00am - 12:00pm, 2:30pm - 4:00pm
Wednesday 7:00am - 12:00pm, 2:30pm - 4:00pm
Thursday 7:00am - 12:00pm, 2:30pm - 4:00pm
Friday 7:00am - 12:00pm, 2:30pm - 4:00pm
Saturday Closed
Sunday Closed
*This facility does not process US Passports applications or renewals. Check nearby locations below.
- Bulk Mail Acceptance
- Bulk Mail Account Balance
- Bulk Mail New Permit
- Business Line
- General Delivery
- Money Orders (Domestic)
- Money Orders (Inquiry)
- Pickup Accountable Mail
- Pickup Hold Mail
- PO Box Online
- Street 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:
Kittery Point
91 Pepperrell Rd
0.7 mile away
Kittery
10 Shapleigh Rd Ste 9998
1.1 miles away
Portsmouth Naval Shipyard
15 McDonough St
1.6 miles away
Eliot
33 Levesque Dr Ste C
3.2 miles away
Rockingham County