327320

Analysis

NAICS 327320 is the 2022 national industry for ready-mix concrete manufacturing, part of 32732 (Ready-Mix Concrete Manufacturing). Census lists 5 example activities under it in the official index.

County Business Patterns counts 6,356 US establishments in this code in 2023, employing 94,195 people at an average annual payroll of $76,086 per employee (63rd percentile of national industries). 33% of the establishments have fewer than five employees, which is close to the national mix.

Between 2018 and 2023 the number of establishments grew 10% and employment rose 14%. 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.

Its index entries, the activities Census uses to assign businesses to this code, include central-mixed concrete manufacturing, concrete batch plants (including temporary), ready-mix concrete manufacturing and distributing and transit-mixed concrete manufacturing, among 5 in all.

Its goods appear in 1 statistical lines of the US tariff schedule, mostly under headings 3824 (prepared binders for foundry molds or cores; chemical…). That link is how import data is matched to domestic producers, for example in trade-remedy cases.

For example, operating sand or gravel pits are classified in 212321 (Construction Sand and Gravel Mining) instead.