PO
16101
Downtown New Castle
Post Office
151 Cascade Galleria
New Castle, PA 16101
Mon-Fri 8:30am - 5:00pm, Sat 8:30am - 1:00pm, Sun Closed
New Castle, PA Post Offices
New Castle has 2 locations serving ZIP codes 16101 and 16108, spanning about 0.5 miles. Each location sets its own hours and services, so confirm before you visit — see the cards below for the one nearest you.
Apply for a PO Box
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Hold Mail Service
Pause mail delivery for up to 30 days, free, while you're away.
Change of Address
File your address change directly with USPS to forward your mail.
All 2 locations in New Castle
Sorted by ZIP code.
PO
16108
New Castle
Post Office
435 S Cascade St
New Castle, PA 16108
Call ahead for hours
Helpful guides
Money Orders
Money orders are a safe way to send payments through the mail. See current fees and maximum amounts.
Post Office Holiday Schedule
Post offices close for all federal holidays. See this year's full schedule so you can plan ahead.
Post Office Weekend Hours
Weekend hours vary a lot by location. See typical Saturday and Sunday patterns before you visit.