327331

Analysis

NAICS 327331 is the 2022 national industry for concrete block and brick manufacturing, part of 32733 (Concrete Pipe, Brick, and Block Manufacturing). Census lists 10 example activities under it in the official index.

By establishments it ranks 1st of the 2 codes at this level within Concrete Pipe, Brick, and Block Manufacturing, with 81.7% of them.

County Business Patterns counts 625 US establishments in this code in 2023, employing 16,066 people at an average annual payroll of $67,087 per employee (47th percentile of national industries). 18% of the establishments have fewer than five employees, which points to larger operations.

Its index entries, the activities Census uses to assign businesses to this code, include architectural block, concrete (e.g., fluted, ground face…, blocks, concrete and cinder, manufacturing, bricks, concrete, manufacturing and cinder (clinker) block, concrete, manufacturing, among 10 in all.

Its goods appear in 1 statistical lines of the US tariff schedule, mostly under headings 6810 (articles of cement, of concrete or of artificial stone…). That link is how import data is matched to domestic producers, for example in trade-remedy cases.

Between 2018 and 2023 the number of establishments fell 7% and employment rose 2%. 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.