Mill Valley Post Office

751 E Blithedale Ave, Mill Valley, CA 94941

Contact Numbers

Phone: 415-388-0639
Fax: 415-388-1501
TTY: 877-889-2457
Toll-Free: 1-800-Ask-USPS® (275-8777)

Retail Hours







Lobby Hours
PO Box Access Available

Monday 24 hours
Tuesday 24 hours
Wednesday 24 hours
Thursday 24 hours
Friday 24 hours
Saturday 24 hours
Sunday 24 hours

Last Collection Times

Monday 5:30pm
Tuesday 5:30pm
Wednesday 5:30pm
Thursday 5:30pm
Friday 5:30pm
Saturday 4:00pm
Sunday Closed

Passport Appointment Hours*

Monday 10:00am - 3:00pm
Tuesday 10:00am - 3:00pm
Wednesday 10:00am - 3:00pm
Thursday 10:00am - 3:00pm
Friday 10:00am - 3:00pm
Saturday Closed
Sunday Closed

  • Visit our Passport FAQ page for a complete overview of what to bring, what you need to know, and how long it will take.
  • You will need two forms of Identification with copies.
  • A passport quality photo. Available at location.
  • The appropriate application form printed and filled out, and the required fee for applying or renewing.
  • You can find up to date costs, information, and forms at the State Departments Travel Site

*An appointment is required to apply for or renew US Passports. Please Call 415-388-0630 or schedule online.

  • Burial Flags
  • Business Line
  • Business Reply Mail Account Balance
  • Business Reply Mail New Permit
  • Duck Stamps
  • General Delivery
  • Money Orders (Domestic)
  • Money Orders (Inquiry)
  • Money Orders (International)
  • Passport Acceptance
  • Passport Photo
  • Pickup Accountable Mail
  • Pickup Hold Mail
  • PO Box Online
  • Lot Parking
  • Passport Appointment Hours

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:

Corte Madera
7 Pixley Ave
0.9 mile away

Larkspur
120 Ward St
1.4 miles away

Sausalito
150 Harbor Dr
1.8 miles away

Kentfield
822 College Ave
2.2 miles away

Reviews

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Why do people not answer any of the telephone lines at the Mill Valley Post Office?
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Terrible. You never answer your phone . Package for my mother Lynn Blaustein said delivered. Not true. Then says held at post office client request. NOT TRUE. We are elderly 95 years old. Can’t come pick up. Don’t appreciate lies.
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I have not had good delivery service in the two years I have lived in Mill Valley. When I have called during business hours, no one answers. I fill out a vacation request and my mail is not redelivered on the date requested. This time it was delivered five days later. I missed some opportunities to purchase a few things because of the delay. I will continue to try to get them on the phone AGAIN to ask what the problem is EVERY TIME. My mail is usually delivered at 7:30 at night. I subscribe to the mail delivery alerts, and it is seldom I get what is listed within a week. We were waiting for a pathology report, and we did receive it timely. The post mark was April 23, we got it May 5. We missed being able to give it to the primary doctor in time for our appointment. I have no trust in the Mill Vally post office.
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I need to make a passport renewal appointment
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Every year I receive Christmas cards in January that have an early December postmark. Why are you not delivering the mail!? In August, I put my FIT test and my primary ballot in the mail at the post office. Neither was delivered!
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Not receiving mail and I see that we have mail in morning preview. I check hourl and our postal worker delivers well into the dark. Please reply
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Tuesday delivery 7pm, Unacceptable
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If we have a package that is too large for our P.O. Box which we paid for over 40 years. Why can't the carrier put the large package(s) into the lockers next to the P.O. Box???? Why do we have to wait until it opens & get into line with the Yellow card to pick up our package? We have a PO Box so that we can get our mail 24-7 without having to interact with your staff.I know people are lazy! It's just steps away from our and put the key into our P.O. Box, very simple!
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Hello, I live at 219 W. Blithedale Ave., Mill Valley CA 94941 and Don is my regular carrier. I know he’s away on vacation but whomever is covering for him needs to know we have a very friendly dog. Please let them know. Thank you!
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your stamp machine is broken. your online stamp ordering service will not let me create an account. how do i get stamps from you without coming in? i am part of the vulnerable population.
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Today I overheard the difficulty an employee of here faced when visiting an Urgent Care center due to an on-the-job injury. The postmaster of this facility, Kim supposedly, refused to provide the employee or urgent care with information on who covers the employees when on-shift, and their policy number. The employee may pay out of pocket and get reimbursed, but not everyone can afford this. I could tell by the conversation the reception had with the postmaster that she was not friendly at all, and it seemed to upset the patient greatly. I can understand how nobody here answers phones, and has the general notion of not giving a shit, when that is how their postmaster treats them and apparently other professionals that she comes in contact with on a day to day basis. I am disgusted. -- what an understatement
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I am disabled and use a mobility scooter to get around. I have a PO Box at your facility and I go there 3 to 4 times a week on average. Your counter staff people are always polite and helpful and I appreciate their service. However I have major problem with accessibility The front doors are heavy and difficult to open by a person in my condition. The Americans with isabilities Act requires that modifications. such as a door opening mechanism be installed in buildings open to the public. I, and other disabled patrons would appreciate your compliance as this situation has proven very troubling especially on rainy days. Thank you for your consideration.
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I tried called to cancel an appointment to have Passport Photos taken tomorrow morning but no one answered the phone all week. The Mill Valley Staff are very cordial especially Monica. From EB : )
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The phone hasn't been answered all day and now it's busy - my package has been "out for delivery" for two days. Now I know why USPS is going out of business!
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Look up PAEA. It's because the Republicans require that the USPS prefund its future health care benefit payments to retirees for the next 75 years in a 10-year time span, meaning that it has to put aside billions of dollars to pay for the health benefits of employees it hasn't even hired yet, something that no other government or private Corporation is required to do. If it weren't for this the USPS would have a 1.5 billion dollar Surplus, but that's not what you Republicans won is it? No, you Republicans want to privatize everything.
• Replied to jlbutson

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I've tried to call the phone for days - no one ever picks up - just rings and rings and rings. I've had my mail forwarded temporarily - and it has yet to be delivered. The mix up is on the Mill Valley end, it seems. I'm finding USPS to be very unreliable and unprofessional in general! If they aren't going to pick up, then they shouldn't advertise the option of calling!
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The guy in the Mill Valley Post Office who deals with passports is not helpful, pleasant, etc. Very unpleasant process.
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I've tried for days to call to get a passport appointment and either it is busy or just rings and rings and nobody ever picks up. Very frustrating.
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I have tried for 2 days to get through to someone on the phone. The line has been constantly busy - or no one answers the phone.
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Please hang up your phone. I have an important message and your line is always busy!
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