Analysis
NAICS 4883 is the 2022 industry group for support activities for water transportation, part of 488 (Support Activities for Transportation). Census lists 30 example activities under it in the official index.
County Business Patterns counts 2,635 US establishments in this code in 2023, employing 101,459 people at an average annual payroll of $88,635 per employee (76th percentile of national industries). 54% of the establishments have fewer than five employees, which is close to the national mix.
Across its national industries Census lists 30 index entries; typical ones are canal maintenance services (except dredging), loading and unloading services at ports and harbors, cargo salvaging, marine and cargo checkers, marine.
It splits into 4 more detailed codes. The largest by establishments is 48833 (Navigational Services to Shipping) with 1,065.
Its more detailed codes are 48831 Port and Harbor Operations (326 establishments), 48832 Marine Cargo Handling (485 establishments), 48833 Navigational Services to Shipping (1,065 establishments) and 48839 Other Support Activities for Water Transportation (759 establishments).
Official definition
This industry group comprises establishments primarily engaged in one of the following: (1) operating ports, harbors (including docking and pier facilities), or canals; (2) providing stevedoring and other marine cargo handling services (except warehousing); (3) providing navigational services to shipping; or (4) providing other services to water transportation.
Source: US Census Bureau, NAICS 2022 Manual.
Index entries (30)
- Canal maintenance services (except dredging)
- Loading and unloading services at ports and harbors
- Cargo salvaging, marine
- Cargo checkers, marine