22131

Analysis

NAICS 22131 is the 2022 NAICS industry for water supply and irrigation systems, part of 2213 (Water, Sewage and Other Systems).

It has only one more detailed code, 221310, which covers exactly the same activities; the definition, index entries and statistics are on that page.

County Business Patterns counts 4,554 US establishments in this code in 2023, employing 43,082 people at an average annual payroll of $76,890 per employee (64th percentile of national industries). 57% of the establishments have fewer than five employees, which is close to the national mix.

By establishments it ranks 1st of the 3 codes at this level within Water, Sewage and Other Systems, with 87.4% of them.

Between 2018 and 2023 the number of establishments grew 9% 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.