Machine shops in the USA
EPA records list 1,201 active machine shops in the US, facilities with codes for precision machining of parts on a job or order basis. The most are in California, Massachusetts and Michigan, with 38% of the total.
- Product
- Machine shops
- Facilities
- 1,201
- States
- 48
- NAICS
- 332710
- Revised
- November 1, 2026
By state
States with at least 15 such facilities have their own page with the facility list.
| State | Facilities | Share |
|---|---|---|
| California | 235 | 19.6% |
| Massachusetts | 140 | 11.7% |
| Michigan | 83 | 6.9% |
| Minnesota | 60 | 5.0% |
| Pennsylvania | 56 | 4.7% |
| Ohio | 47 | 3.9% |
| Florida | 44 | 3.7% |
| Texas | 41 | 3.4% |
| Washington | 41 | 3.4% |
| Alabama | 30 | 2.5% |
| Indiana | 30 | 2.5% |
| Illinois | 29 | 2.4% |
| Wisconsin | 27 | 2.2% |
| Maryland | 23 | 1.9% |
| Arizona | 19 | 1.6% |
| Virginia | 19 | 1.6% |
| Iowa | 17 | 1.4% |
| Missouri | 17 | 1.4% |
| Connecticut | 15 | 1.2% |
| New York | 14 | 1.2% |
| Vermont | 14 | 1.2% |
| Oregon | 13 | 1.1% |
| Colorado | 12 | 1.0% |
| Kansas | 12 | 1.0% |
| South Carolina | 12 | 1.0% |
| Louisiana | 11 | 0.9% |
| New Jersey | 11 | 0.9% |
| West Virginia | 11 | 0.9% |
| Arkansas | 10 | 0.8% |
| Kentucky | 10 | 0.8% |
| Maine | 10 | 0.8% |
| Georgia | 8 | 0.7% |
| Tennessee | 8 | 0.7% |
| Mississippi | 7 | 0.6% |
| New Hampshire | 7 | 0.6% |
| New Mexico | 7 | 0.6% |
| North Carolina | 7 | 0.6% |
| Oklahoma | 7 | 0.6% |
| Nebraska | 6 | 0.5% |
| Rhode Island | 6 | 0.5% |
| Montana | 5 | 0.4% |
| Idaho | 4 | 0.3% |
| South Dakota | 4 | 0.3% |
| Delaware | 3 | 0.2% |
| Utah | 3 | 0.2% |
| Alaska | 2 | 0.2% |
| North Dakota | 2 | 0.2% |
| Wyoming | 2 | 0.2% |
EPA ECHO active facilities listing NAICS 332710. Codes are reported by facilities and not checked here. How these records work.
Biggest clusters
- Houston, TX: 16
- San Jose, CA: 15
- Santa Clara, CA: 13
- Fremont, CA: 12
- Seattle, WA: 11
- Phoenix, AZ: 9
- Santa Ana, CA: 7
- San Diego, CA: 7
Codes counted
- Machine Shops (NAICS 332710)
This sits inside fabricated metal products manufacturing, which has 53,790 establishments and 1,441,471 jobs (Census, 2023). See the industry.