US Factory Map

Primary metals manufacturers in the USA

The US has 3,570 primary metals establishments employing 354,914 people (Census, 2023), 2.9% of manufacturing jobs. The most jobs are in Indiana, Ohio, Pennsylvania. EPA's ECHO database lists 4,995 active facilities in this subsector (Primary Metal Manufacturing, NAICS 331).

NAICS subsector
331
Primary Metal Manufacturing
Establishments
3,570
Employees
354,914
In EPA records
4,995
Factory pages
243
Revised
November 11, 2026

By state

StateEstablishmentsEmployeesIn EPA records
Indiana19038,300296
Ohio32935,162350
Pennsylvania30732,639438
Texas25222,390216
Alabama9119,281188
Illinois19918,588257
Michigan20717,934322
Wisconsin13515,035145
Kentucky7413,00992
California26411,550618
Tennessee10211,437109
North Carolina7310,09479
New York1429,991168
Missouri767,562142
Arkansas467,42684
Oregon466,36755
Iowa426,23981
South Carolina595,96568
Oklahoma495,50464
Minnesota655,14869
Georgia615,04578
West Virginia224,68542
Florida954,43097
Washington633,91075
Utah463,88532
Mississippi223,84849
Virginia353,48862
New Jersey683,098137
Arizona573,00638
Connecticut512,73284
Massachusetts652,496115
Louisiana192,21056
New Hampshire231,92332
Colorado271,84229
Kansas161,70144
Rhode Island381,60143
Nebraska121,12423
Nevada1795418
Montana1291414
South Dakota75287
New Mexico1041021
Idaho143244
Maryland1331337
Maine92603
Wyoming61883
Delaware41734
North Dakota31111
Vermont3864
Alaska351
Hawaii——1

Census County Business Patterns 2023; EPA ECHO active facilities.

What these factories make

Among the 243 factories with a page here:

  • Iron and Steel Mills and Ferroalloy Manufacturing (NAICS 331110): 79
  • Iron Foundries (NAICS 331511): 32
  • Secondary Smelting, Refining, and Alloying of Nonferrous Metal (except Copper and Aluminum) (NAICS 331492): 14
  • Secondary Smelting and Alloying of Aluminum (NAICS 331314): 13
  • Aluminum Sheet, Plate, and Foil Manufacturing (NAICS 331315): 13
  • Rolled Steel Shape Manufacturing (NAICS 331221): 12
  • Other Aluminum Rolling, Drawing, and Extruding (NAICS 331318): 11
  • Iron and Steel Pipe and Tube Manufacturing from Purchased Steel (NAICS 331210): 10
  • Alumina Refining and Primary Aluminum Production (NAICS 331313): 7
  • Aluminum Foundries (except Die-Casting) (NAICS 331524): 7
  • Nonferrous Metal (except Aluminum) Smelting and Refining (NAICS 331410): 6
  • Steel Wire Drawing (NAICS 331222): 4
  • Copper Rolling, Drawing, Extruding, and Alloying (NAICS 331420): 4
  • Nonferrous Metal (except Copper and Aluminum) Rolling, Drawing, and Extruding (NAICS 331491): 4
  • Steel Foundries (except Investment) (NAICS 331513): 3

New plants in this industry

Dickeyville brass foundry and Kieler plant expansion, Dickeyville, WIAnnouncedBowling Green aluminum extrusion and finishing plant (Kentucky Transpark), Bowling Green, KYAnnouncedHalls aluminum manufacturing plant (former Tupperware building), Halls, TNAnnouncedGolden Triangle recycled aluminum slab center, Columbus, MSAnnouncedArcelorMittal Calvert non-grain-oriented electrical steel mill, Calvert, ALAnnouncedDavenport Works aluminum casting complex expansion, Bettendorf, IAAnnouncedPortland wire mesh panel plant (relocation from Chicago area), Portland, TNAnnouncedRIDC Armstrong Innovation Park metal stamping plant, South Buffalo Township, PAAnnouncedTheodore cryogenic container plant (second site), Theodore, ALAnnouncedRussellville secondary aluminum billet casting plant, Russellville, KYAnnouncedMiddletown Works blast furnace rebuild and cogeneration project, Middletown, OHAnnouncedMcBee rare earth and metals recycling plant (Alligator Industrial Park), McBee, SCAnnouncedOklahoma primary aluminum smelter, Inola, OKAnnouncedLivingston pipe fabrication expansion (large-diameter line), Livingston, LAAnnouncedSparks sheet metal fabrication facility, Sparks, NVAnnouncedIndependence machining plant expansion, Independence, IAAnnouncedMansfield seamless tube and pipe plant, Mansfield, LAAnnouncedLouisiana EAF steel mill, RiverPlex MegaPark, Donaldsonville, LAUnder constructionTradepoint Atlantic spiralweld steel pile mill, Sparrows Point, MDAnnouncedMingo Junction steel plant upgrade, Mingo Junction, OHAnnouncedManning precision metal components plant, Manning, SCAnnouncedChesapeake copper rod, magnet wire and rare-earth magnet complex, Chesapeake, VAAnnouncedMadison automotive steel blanking plant, Madison, ALAnnouncedThomson metal fabrication plant, Thomson, GAAnnouncedAliquippa pipe fabrication facility, Aliquippa, PAAnnouncedRidgeway copper wire plant, Ridgeway, SCAnnouncedOsceola steel manufacturing facility, Mississippi County, ARAnnouncedDefiance aluminum recycling and slab casting campus, Defiance, OHAnnouncedNorthlake 10X rare earth magnet campus (expansion), Northlake, TXAnnouncedMcEwen wire products plant expansion, McEwen, TNAnnouncedTin Ridge tin refining plant, Martinsville area, VAAnnouncedBath Charter Township fastener plant, Bath Charter Township, MIAnnouncedGuthrie aluminum recycling and sheet ingot casting center, Guthrie, KYUnder constructionBay Minette aluminum recycling and rolling plant, Bay Minette, ALOperatingKingman steel mill melt shop expansion, Kingman, AZAnnouncedNucor Steel West Virginia sheet mill, Apple Grove, WVUnder constructionLexington rebar micro mill, Lexington, NCAnnouncedNucor Towers & Structures Decatur transmission tower plant, Decatur, ALAnnouncedDecatur Towers & Structures utility pole expansion, Decatur, ALAnnouncedCrawfordsville utility structures plant, Crawfordsville, INAnnouncedBrigham City utility structures plant, Brigham City, UTAnnouncedDelaware copper alloy products plant, Delaware, OHAnnouncedKern County steel rebar mill, Kern County, CAAnnouncedIndependence aluminum extrusion expansion, Independence, IAAnnouncedNorth Charleston copper rod plant, North Charleston, SCAnnouncedTemple superalloy and specialty metals plant, Temple, TXAnnouncedPittston CNC machining and laser cutting facility, Pittston, PAAnnouncedTiptonville silicon metal refining plant, Tiptonville, TNAnnouncedWashington steel pole coating and galvanizing facility, Washington, LAAnnouncedWest Chester stainless fittings plant expansion, West Chester Township, OHAnnouncedColumbus aluminum flat rolled mill, Columbus, MSOperatingColumbia structural steel fabrication plant (Metso Way), Columbia, SCAnnouncedFlorence naval defense steel fabrication expansion, Florence, SCAnnouncedAdairsville industrial racking plant, Gordon County, GAAnnouncedPocahontas data center steel frame plant, Pocahontas, ARAnnouncedBig River 2 (BR2) mini mill, Osceola, AROperatingOsceola direct reduced iron (DRI) facility, Osceola, ARUnder constructionHertford County specialty steel forging and fabrication plant, Cofield area, NCAnnouncedStillwater rare earth metal and NdFeB magnet plant, Stillwater, OKOperatingYoungstown seamless pipe threading line expansion, Youngstown, OHAnnouncedJasper utility structures plant expansion, Jasper, TNAnnouncedLawrenceville foundry expansion, Lawrenceville, PAAnnouncedVinton steel mini-mill expansion, Vinton, TXAnnouncedBowling Green specialty aluminum casting facility, Bowling Green, KYAnnouncedDevens additive manufacturing factory (third Massachusetts plant), Devens, MAAnnouncedSt. Joe steel grating facility (expansion), St. Joe, INAnnouncedLittle Rock LSAW pipe mill, Pulaski County, ARAnnouncedBremen pressure vessel plant expansion, Bremen, OHAnnouncedHebron nuclear equipment plant (new), Hebron, OHAnnouncedMontpelier brass mill expansion, Montpelier, OHAnnouncedEast Alton copper rolling mill modernization expansion, East Alton, ILUnder construction