Manufacturing capacity for San Luis Obispo County, CA

Name: Injection Molding Cost Checker Capacity Index: San Luis Obispo County, CA
Creator: Injection Molding Cost Checker
Published: 2026-09-09
License: https://injectionmoldingcostchecker.com/terms

The Census counts 23 establishments in San Luis Obispo County across the classes this site tracks.

This is a small published count: with fewer than 30 establishments, county figures say little about local supply, so lean on the California capacity figures and treat the numbers here as context only.

plastics product plants: 6
machine shops: 17
people employed: 304

How this compares to California

San Luis Obispo County23
California3,624

How this compares to California

California overall: 3,624 establishments across the five classes, of which machine shops are the largest. San Luis Obispo County sits below the state's typical county for these classes.

Sourcing a part in San Luis Obispo County?

Capacity data says where the plants are. To find out what your part costs, send the part.

Price my part

Sources, citation and related pages

Cite or embed this figure

In San Luis Obispo County, CA the custom manufacturing establishments was 23.

Cite as: "Injection Molding Cost Checker Capacity Index: San Luis Obispo County, CA", updated 2026-09-09, https://injectionmoldingcostchecker.com/capacity/california/san-luis-obispo-county-ca/.

Embed this figure (plain HTML, no scripts)

Custom manufacturing establishments · San Luis Obispo County, CA · 2022

manufacturing establishments	304

Source: Injection Molding Cost Checker Capacity Index: San Luis Obispo County, CA

<figure style="margin:0;max-width:340px;padding:16px 18px;border:1px solid #e2e8f0;border-radius:10px;background:#ffffff;color:#0f172a;font-family:-apple-system,BlinkMacSystemFont,'Segoe UI',Roboto,Helvetica,Arial,sans-serif;line-height:1.4;"><figcaption style="margin:0 0 6px;font-size:11px;letter-spacing:.04em;text-transform:uppercase;color:#64748b;background:#ffffff;">Custom manufacturing establishments &middot; San Luis Obispo County, CA &middot; 2022</figcaption><p style="margin:0;font-size:26px;font-weight:700;color:#0f172a;background:#ffffff;">23<span style="font-size:14px;font-weight:400;color:#64748b;"></span></p><table style="width:100%;border-collapse:collapse;margin:10px 0 0;font-size:13px;background:#ffffff;border:0;"><tbody style="background:#ffffff;"><tr style="background:#ffffff;"><th scope="row" style="text-align:left;font-weight:400;color:#64748b;background:#ffffff;border:0;padding:3px 0;">manufacturing establishments</th><td style="text-align:right;font-weight:600;color:#0f172a;background:#ffffff;border:0;padding:3px 0;">304</td></tr></tbody></table><p style="margin:12px 0 0;font-size:12px;color:#64748b;background:#ffffff;">Source: <a href="https://injectionmoldingcostchecker.com/capacity/california/san-luis-obispo-county-ca/#stats" style="color:#2563eb;background:#ffffff;text-decoration:underline;">Injection Molding Cost Checker Capacity Index: San Luis Obispo County, CA</a></p></figure>

Source: US Census Bureau, County Business Patterns 2022 (state file, all legal forms of organisation)

www2.census.gov ()

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.

Price my partGet manufacturer quotes