Analysis
NAICS 221121 is the 2022 national industry for electric bulk power transmission and control, part of 22112 (Electric Power Transmission, Control, and Distribution). Census lists 3 example activities under it in the official index.
County Business Patterns counts 360 US establishments in this code in 2023, employing 20,606 people at an average annual payroll of $159,057 per employee (98th percentile of national industries). 37% of the establishments have fewer than five employees, which is close to the national mix.
Between 2018 and 2023 the number of establishments grew 15% and employment rose 27%. 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 Electric Power Transmission, Control, and Distribution, with 4.2% of them.
Its index entries, the activities Census uses to assign businesses to this code, include electric power control, electric power transmission systems and transmission of electric power.
For example, generating electric energy are classified in 22111 (Electric Power Generation) instead.
Official definition
This U.S. industry comprises establishments primarily engaged in operating electric power transmission systems and/or controlling (i.e., regulating voltages) the transmission of electricity from the generating source to distribution centers or other electric utilities. The transmission system includes lines and transformer stations.
Source: US Census Bureau, NAICS 2022 Manual.
Not this code if…
Index entries (3)
- Electric power control
- Electric power transmission systems
- Transmission of electric power