561431 Private Mail Centers

Official definition

This U.S. industry comprises (1) establishments primarily engaged in providing mailbox rental and other postal and mailing (except direct mail advertising) services or (2) establishments engaged in providing these mailing services along with one or more other office support services, such as facsimile services, word processing services, on-site PC rental services, and office product sales.

Source: US Census Bureau, 2022 NAICS descriptions.

When to use a different code

Census classifies these close-sounding activities somewhere else. Businesses mainly engaged in:

• Operating contract post offices are classified in Industry 491110, Postal Service.
• Delivering letters and parcels (except under a universal service obligation) are classified in Subsector 492, Couriers and Messengers.
• Providing voice mailbox services are classified in U.S. Industry 561421, Telephone Answering Services.
• Providing direct mail advertising services are classified in Industry 541860, Direct Mail Advertising.
• Providing only one of the support services (e.g., word processing services) that establishments in this industry provide are classified in the appropriate industry according to the service provided.
• Providing full service office space, whether on a lease or service contract basis are classified in Industry 531120, Lessors of Nonresidential Buildings (except Miniwarehouses).

Source: US Census Bureau, 2022 NAICS cross-references.

Activities listed under 561431

The Census index assigns these 6 activities to this code. If your business matches one, this is your code.

• Mailbox rental centers, private
• Mailbox rental services combined with one or more other office support services, private
• Parcel mailing services combined with one or more other office support services, private
• Parcel mailing services, private
• Private mail centers
• Private mailbox rental centers

Source: US Census Bureau, 2022 NAICS index file.

SBA size standard for 561431

To count as a small business for SBA loans and federal contracts under NAICS 561431, your business (including affiliates) must not exceed $19 million in average annual receipts. Check your business.

Source: SBA table of size standards, effective March 17, 2023.

Closest UK SIC 2007 codes

There is no official one-to-one link between NAICS and UK SIC. These codes share the same international class (ISIC Rev. 4: 8219), so treat them as a starting point and check the definition.

• 82190Photocopying, document preparation and other specialised office support activitiesUK SIC

Built from Census concordances 2022→2017 NAICS and 2017 NAICS→ISIC Rev. 4.

Similar codes to compare

• 561439Other Business Service Centers (including Copy Shops)