CPU
21701
Cpu A-1 Svcs Of Frederick
Contract Postal Unit
504 W Patrick St Ste E
Frederick, MD 21701
Mon-Fri 9:00am - 8:00pm, Sat 9:00am - 5:00pm, Sun Closed
Frederick, MD Post Offices
Frederick has 2 locations serving ZIP codes 21701 and 21702, spanning about 1.1 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
Compare box sizes and pricing, and see what you need to apply.
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.
Certified Mail
See the cost, and what happens if no one's there to sign.
Missing Mail & Lost Packages
Package says delivered but isn't there? See what to do.
General Delivery
Receive mail here without a fixed address. See how to address it.
All 2 locations in Frederick
Sorted by ZIP code.
PO
21702
College Estates
Post Office
1301 W 7th St
Frederick, MD 21702
Mon-Fri 9:00am - 5:00pm, Sat 9:00am - 2:00pm, Sun Closed
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.