New York City is often referred to as the "city that never sleeps" with a population of over 8 million people. That would seem to make getting a post office box a chore, but in reality claiming a post office box there is the same as anywhere. New Yorkers can get one online or in person at the post office.
Items you will need
Select a box size that best fits your needs and expected mail volume. However, not all New York City post office locations will have all five box sizes. The post office branch of your choice will be able to tell you what the options are at that location.
Complete Form 1093 either online or at a post office. The form asks if the box is for individual or business use, the complete mailing address, the contact information for the owner and box size. On the second page, list all individuals who will get mail at the box and anyone authorized to pick mail up there.
Present two valid forms of identification -- one displaying a photo and one confirming an address. Acceptable identification includes a driver's license, military card, student card or passport. Acceptable mailing address validations include a mortgage statement, deed or voter's registration card. On business accounts, the names listed only need to present identification upon request from the post office.
Submit payment with Form 1093. Depending on the plan, payments are due every three, six or 12 months. An automatic payment plan is required with the three-month option. Payments can be submitted online with your initial application or in person at the post office.
Pick up as many as two keys, each with a refundable deposit, from the post office. Additional keys are available for an additional fee and deposit amount. The other option is to use your own lock.
The post office closest to your location might not have a PO Box available or in the size you need. In this case, you can either have your name added to a waiting list or search another branch for available space.