United States Postal Service, Maine, Castine
In Castine, Maine, the United States Postal Service serves local residents as a designated location to begin the passport process. This office assists with new passport requests, have documents checked and sealed, and forward their application for official review. Travelers preparing from Castine or close towns choose this facility for convenience and accessibility. Appointments may be required during high-demand periods, therefore scheduling an appointment is a good idea. Here you can find essential information such as hours of operation, location, and phone number, making the process smoother for every applicant.
The United States Postal Service in Castine, Maine, is an indispensable community partner, delivering dependable mail and package services tailored to the needs of residents, businesses, and the nearby maritime academy. With a commitment to reliability and accessibility, this local office ensures timely deliveries across rural routes and supports small businesses with cost-effective shipping options and convenient PO box services. Choosing the Castine post office means investing in a trusted network that understands local rhythms—seasonal tourism, academic schedules, and the realities of coastal living.
Customer-focused staff provide personalized assistance, whether you’re sending priority mail, securing certified delivery, or exploring bulk-mail solutions for community events. Enhanced tracking, flat-rate shipping choices, and consistent delivery standards make the Postal Service an efficient alternative to higher-cost carriers, particularly for local merchants and nonprofit organizations. Supporting the Castine USPS also preserves an essential public service that strengthens neighborhood connectivity and economic resilience.
Engage with the Castine post office for reliable, professional mailing solutions that reflect community values. By using its services, you help maintain a dependable infrastructure that keeps communication flowing, supports commerce, and honors the traditions of Maine’s coastal communities. Make the local Postal Service your first choice for secure, affordable, and community-minded shipping and mailing needs.
Maps
Phone
Opening hours
| Monday | 1–4:30 PM |
| Tuesday | 1–4:30 PM |
| Wednesday | 1–4:30 PM |
| Thursday | 1–4:30 PM |
| Friday | 1–4:30 PM |
| Saturday | 8:30–11:30 AM |
| Sunday | Closed |
- Name: United States Postal Service
- Address: 43 Main St, Castine, ME 04421 Click here to view the address on Google Maps
- Rating: 5 / 5 (4 reviews)
- ZIP code: 04421
- Phone: +1 800-275-8777
- City: Maine, Castine
Passport Services Offered at This Location
In the United States there are two kinds of places that help with passports: (1) Passport Acceptance Facilities (often located in post offices, libraries, clerk of court buildings, or city halls) and (2) Passport Agencies/Centers operated by the U.S. Department of State for urgent travel. Most local “passport offices” listed in our directory are acceptance facilities that receive your application, verify your identity and documents, collect fees, and send your package to the Department of State for processing.
What You Can Do Here (Acceptance Facility)
- Apply for a first-time U.S. passport (DS-11) — for adults applying for the first time and for all children under 16.
- Apply with Form DS-11 when you are not eligible to renew by mail — e.g., your prior passport was lost/stolen, expired more than 5 years ago, was issued before age 16, or your name changed and you lack supporting documents for DS-82.
- Replacement for lost/stolen passports — include the appropriate loss report as instructed.
- Minor applications — in most cases, both parents/guardians must appear or provide consent documentation (e.g., DS-3053).
- Passport photos & photocopies — many locations offer photo and copy services (availability varies).
- Pay required fees — you’ll typically make two separate payments: (1) U.S. Department of State application fee and (2) a local execution/acceptance fee charged by the facility.
- Mailing/expedited shipping — staff will package and send your application; some locations offer upgraded shipping (optional).
Services Not Provided Here
- Standard renewals eligible by mail (DS-82) — if you qualify, you should renew by mail; acceptance facilities generally do not process DS-82 over the counter.
- Same-day or emergency issuance — for international travel in the next 14 days (or visa within 28 days), book an appointment at a Passport Agency/Center.
- Status updates or corrections after submission — track and manage your application directly with the Department of State.
What to Bring to Your Appointment
- Proof of U.S. citizenship (e.g., U.S. birth certificate or certificate of naturalization) and a current government-issued photo ID.
- Photocopies of citizenship and ID (front/back) on plain white 8.5”×11” paper.
- Passport photo meeting current U.S. requirements (many locations can take it on site).
- Payment methods accepted by this office for each fee (may differ for State vs. facility fees).
- Appointment confirmation if required (many locations are appointment-only).
- For minors: the child, parents/guardians, and any required consent documents.
Processing Times & Official Guidance
Processing times change during the year. For the latest routine and expedited timeframes, required documents, fee amounts, and to check your application status, always refer to the official guidance at
travel.state.gov.