Analysis
NAICS 31324 is the 2022 NAICS industry for knit fabric mills, part of 3132 (Fabric Mills).
It has only one more detailed code, 313240, which covers exactly the same activities; the definition, index entries and statistics are on that page.
Between 2018 and 2023 the number of establishments fell 21% and employment fell 13%. 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.
County Business Patterns counts 102 US establishments in this code in 2023, employing 5,228 people at an average annual payroll of $46,516 per employee (14th percentile of national industries). 23% of the establishments have fewer than five employees, which points to larger operations.
By establishments it ranks 4th of the 4 codes at this level within Fabric Mills, with 13.9% of them.
Official definition
See industry description for 313240.
Source: US Census Bureau, NAICS 2022 Manual.