Analysis
NAICS 61131 is the 2022 NAICS industry for colleges, universities, and professional schools, part of 6113 (Colleges, Universities, and Professional Schools).
It has only one more detailed code, 611310, which covers exactly the same activities; the definition, index entries and statistics are on that page.
County Business Patterns counts 3,989 US establishments in this code in 2023, employing 1,862,528 people at an average annual payroll of $56,181 per employee (26th percentile of national industries). 24% of the establishments have fewer than five employees, which points to larger operations.
Between 2018 and 2023 the number of establishments fell 8% and employment fell 0%. 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 611310.
Source: US Census Bureau, NAICS 2022 Manual.