Nonmetallic Mineral Product Manufacturing
20,947 FACILITIESAll Census product lines →NAICS 327
Map, cities and product lines
Top cities
Product lines reported here
Clay, glass, cement, and other nonmetallic minerals products…Manufacturing of ready-mix concreteManufacturing of concrete paversManufacturing of asphalt paving mixtures and blocksManufacturing of chemicalManufacturing of component panels
These are counts by industry: the Economic Census records what establishments in nonmetallic mineral product manufacturing reported producing, and never names a plant.
Where these plants are56 STATES
Bars are drawn against California, the largest, rather than against the national total.
Common questions
How many nonmetallic mineral product manufacturing facilities are in the United States?
As of AUG 2026, FactoryRegistry lists 20,947 nonmetallic mineral product manufacturing facilities (NAICS 327) across 56 states, compiled from EPA, OSHA and Census records.
Which state has the most nonmetallic mineral product manufacturing facilities?
California, with 2,776 facilities listed.
How many nonmetallic mineral product manufacturing facilities are still operating?
6,682 of the 20,947 listed carry a recent operating signal in federal data — the register's Active or Likely active status. The rest are listed from their filings alone, which is a gap in the federal record rather than evidence that a plant has closed.