325311

Analysis

NAICS 325311 is the 2022 national industry for nitrogenous fertilizer manufacturing, part of 32531 (Fertilizer and Compost Manufacturing). Census lists 12 example activities under it in the official index.

County Business Patterns counts 194 US establishments in this code in 2023, employing 7,033 people at an average annual payroll of $125,270 per employee (92nd percentile of national industries). 37% of the establishments have fewer than five employees, which is close to the national mix.

Its index entries, the activities Census uses to assign businesses to this code, include ammonia, anhydrous and aqueous, manufacturing, ammonium nitrate manufacturing, ammonium sulfate manufacturing and anhydrous ammonia manufacturing, among 12 in all.

Its goods appear in 16 statistical lines of the US tariff schedule, mostly under headings 3102 (mineral or chemical fertilizers, nitrogenous), 2814 (ammonia, anhydrous or in aqueous solution) and 2808 (). That link is how import data is matched to domestic producers, for example in trade-remedy cases.

For example, mixing ingredients made elsewhere into nitrogenous fertilizers are classified in 325314 (Fertilizer (Mixing Only) Manufacturing) instead.

Between 2018 and 2023 the number of establishments fell 6% 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.