Harvard Square Post Office
is currently closedThis USPS post office is located in Cambridge, MA where the date and time is currently: 4/5/2026, 10:43:30 AM
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Retail Hours
| Day | Open | Close |
|---|---|---|
| Monday | 7:30 AM | 6:00 PM |
| Tuesday | 7:30 AM | 6:00 PM |
| Wednesday | 7:30 AM | 6:00 PM |
| Thursday | 7:30 AM | 6:00 PM |
| Friday | 7:30 AM | 6:00 PM |
| Saturday | 7:30 AM | 3:00 PM |
| Sunday | Closed | |
Address
125 Mount Auburn St Ste 1
Cambridge, MA
02138-9998
Latitude: 42.373618, Longitude: -71.122976
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Phone numbers
- Phone:617-876-3883
- Fax: 617-876-8508
Services at Harvard Square Post Office
Street parking. Here's what you can do at this location:
Shipping
- Global Express Guaranteed
- The fastest international shipping option from USPS. Delivers to over 190 countries with date-certain delivery, typically in 1–3 business days. Includes tracking and insurance.
- Label Broker
- For online sellers: give your customers a Label Broker ID or QR code so they can print a prepaid USPS return label at this post office — no printer needed.
- Priority Mail International
- Affordable international shipping with delivery in 6–10 business days to most countries. Includes tracking and insurance up to $200.
PO Box & Mail
- Accountable Mail Pickup
- Pick up items that require a signature: Certified Mail, Registered Mail, Collect on Delivery, insured packages, and Signature Confirmation items.
- Hold Mail Pickup
- Pick up mail that USPS has been holding while you were away. You can request a hold for up to 30 days through usps.com or at the counter.
- Package Pickup (Notice Left)
- Pick up a package that couldn't be delivered — the carrier left a slip at your door. Bring the notice and a valid ID.
- PO Box (Online Management)
- Rent a PO Box and manage billing online. A PO Box gives you a secure, private mailing address — useful if you run a business or want to separate personal and business mail.
Passport
- Passport Applications (By Appointment)
- Apply for a new passport or renew an expired one. Appointments are required — schedule at usps.com. Bring your documents, photos, and payment.
- Passport Photos
- Get a compliant passport photo taken on-site. The photo meets all U.S. Department of State requirements so your application won't be delayed.
Money & Financial
- Domestic Money Orders
- Purchase money orders up to $1,000 each — a secure way to send payments without a bank account. Accepted nearly everywhere and traceable if lost.
- Money Order Inquiries
- If a money order is missing, lost, or stolen, you can file an inquiry here. Bring your receipt — USPS can trace and replace it.
- International Money Orders
- Send money orders to other countries through the USPS international network. Available for select countries with limits that vary by destination.
Business
- Business Reply Mail Account
- Manage your Business Reply Mail account balance. BRM lets your customers mail back responses postage-free — you pay only for what's returned.
- New Business Reply Mail Permits
- Set up a Business Reply Mail permit so customers can respond to your mailings without paying postage.
Other Services
- Burial Flags for Veterans
- Eligible veterans and their families can receive a U.S. flag to drape over the casket at no cost. Bring a completed VA Form 27-2008.
- Customer Service Referrals
- Staff can help answer questions or direct you to the right resource for issues with mail delivery, address changes, or other USPS services.
- Federal Duck Stamps
- Purchase a Migratory Bird Hunting and Conservation Stamp — required for waterfowl hunting in addition to a state license. Proceeds fund wetland conservation.
- Greeting Cards with Postage
- Buy greeting cards that already include postage — write your message, address it, and drop it in the mail. No stamps needed.