Analysis
NAICS 4832 is the 2022 industry group for inland water transportation, part of 483 (Water Transportation).
It has only one more detailed code, 48321, which covers exactly the same activities; the definition, index entries and statistics are on that page.
County Business Patterns counts 692 US establishments in this code in 2023, employing 21,136 people at an average annual payroll of $91,781 per employee (79th percentile of national industries). 61% of the establishments have fewer than five employees, which marks it as a small-business industry.
Between 2018 and 2023 the number of establishments grew 16% and employment rose 9%. The 2018 count used NAICS 2017, so part of a large move can come from codes being redefined rather than from businesses opening or closing.
By establishments it ranks 2nd of the 2 codes at this level within Water Transportation, with 38.7% of them.