Analysis
NAICS 11521 is the 2022 NAICS industry for support activities for animal production, part of 1152 (Support Activities for Animal Production).
It has only one more detailed code, 115210, which covers exactly the same activities; the definition, index entries and statistics are on that page.
County Business Patterns counts 4,791 US establishments in this code in 2023, employing 23,365 people at an average annual payroll of $45,166 per employee (13th percentile of national industries). 78% of the establishments have fewer than five employees, which marks it as a small-business industry.
Between 2018 and 2023 the number of establishments fell 1% and employment rose 12%. 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.
Official definition
See industry description for 115210.
Source: US Census Bureau, NAICS 2022 Manual.