Home / Capacity data / Michigan Save Custom manufacturing capacity in Michigan The Census Bureau's published establishment, employment and payroll counts for Michigan across the five classes this site tracks.
More These are counts of plants, never a directory and never an endorsement; methodology at the foot of the page.
plastics product plants 368
machine shops 926
sheet metal shops 169
tool and die shops 411
people employed 69,835 By county plastics, largest first
Macomb County 10,350 Kent County 9,217 Oakland County 7,502 Wayne County 7,462 Ottawa County 4,536 Kalamazoo County 1,975 Allegan County 1,806 Monroe County 1,747 Muskegon County 1,684 Osceola County 1,510 St. Clair County 1,246 Saginaw County 1,206 Classes with fewer than 30 establishments are suppressed or sparse in the published series for smaller states; treat those as context and lean on the national figures for planning.
Download the Michigan county-level dataset (CSV) , free to reuse with citation.
Do you make parts to order? Buyer enquiries from Michigan each naming a process, a material, a quantity and a date. You see the part before you accept it.
Get listed Sources, citation and related pages Cite or embed this figure The custom manufacturing establishments in Michigan was 1,939 in 2022, across 1,939 manufacturing establishments recorded in the US Custom Manufacturing Capacity Index (Census County Business Patterns 2022).
Cite as: "Injection Molding Cost Checker Capacity Index: Michigan", updated 2026-09-09, https://injectionmoldingcostchecker.com/capacity/michigan/.
Embed this figure (plain HTML, no scripts) Copy embed Counties in Michigan Custom manufacturing in Allegan County, MI Manufacturing capacity data for Berrien County, MI Genesee County, MI machine shops and fabricators Custom manufacturing in Jackson County, MI Kalamazoo County, MI machine shops and fabricators Custom manufacturing in Kent County, MI Lapeer County, MI machine shops and fabricators Manufacturing capacity data for Livingston County, MI Macomb County, MI machine shops and fabricators Manufacturing capacity data for Muskegon County, MI Manufacturing capacity data for Oakland County, MI Custom manufacturing in Ottawa County, MI Manufacturing capacity data for Saginaw County, MI Custom manufacturing in St. Clair County, MI Manufacturing capacity data for Washtenaw County, MI Manufacturing capacity data for Wayne County, MI Other states in the index Custom manufacturing in Alabama Alaska moulders, machine shops and fabricators Arizona moulders, machine shops and fabricators Custom manufacturing in Arkansas The California capacity data The Colorado capacity data What Connecticut actually makes The Delaware capacity data What Florida actually makes Custom manufacturing in Georgia What Hawaii actually makes Idaho moulders, machine shops and fabricators Custom manufacturing in Illinois What Indiana actually makes The Iowa capacity data Kansas moulders, machine shops and fabricators The Kentucky capacity data Louisiana moulders, machine shops and fabricators Maine moulders, machine shops and fabricators What Maryland actually makes The Massachusetts capacity data Custom manufacturing in Minnesota What Mississippi actually makes The Missouri capacity data The Montana capacity data Nebraska moulders, machine shops and fabricators Custom manufacturing in Nevada Custom manufacturing in New Hampshire Custom manufacturing in New Jersey Custom manufacturing in New Mexico New York moulders, machine shops and fabricators North Carolina moulders, machine shops and fabricators North Dakota moulders, machine shops and fabricators The Ohio capacity data Oklahoma moulders, machine shops and fabricators Custom manufacturing in Oregon Pennsylvania moulders, machine shops and fabricators Custom manufacturing in Rhode Island What South Carolina actually makes What South Dakota actually makes Tennessee moulders, machine shops and fabricators The Texas capacity data The Utah capacity data The Vermont capacity data What Virginia actually makes Custom manufacturing in Washington Custom manufacturing in West Virginia The Wisconsin capacity data The Wyoming capacity data Source: US Census Bureau, County Business Patterns 2022 (state file, all legal forms of organisation)
Methodology: Establishment, employment and annual payroll counts for the five NAICS classes this hub's processes are counted in, read from the Census Bureau's keyless County Business Patterns state file for 2022. No NAICS class means 'injection moulding shop', so every class is labelled with its Census name and never with a process name: 326199 is All Other Plastics Product Manufacturing, the class injection moulders share with other plastics converters. Machine Shops (332710) and Sheet Metal Work Manufacturing (332322) publish for all 50 states; Special Die and Tool (333514) and Metal Stamping (332119) are suppressed in smaller states and their absence is recorded rather than filled. Payroll is Census annual payroll in thousands of dollars. This index counts CAPACITY, not vendors we have any relationship with.