Millwright Union Locals Directory: How to Find Yours (2026)
To find your millwright union local, start at the International Association of Machinists and Aerospace Workers (IAM) at goiam.org or the United Brotherhood of Carpenters (UBC) at carpenters.org — both represent millwrights depending on your region. Enter your zip code in their local finder tools, and you’ll have a phone number and meeting schedule within minutes.
Millwrights are represented by two major unions in the US, which confuses a lot of people first looking into it. This guide breaks down how the two unions divide the trade, how to locate the specific local covering your area, and what to expect when you walk through the door.
Table of Contents
Quick facts: Millwright unions in the US
- Primary unions: IAM (Industrial Division) and UBC (Millwright locals)
- Apprenticeship length: 4–5 years (8,000 hours OJT + classroom)
- Apprentice starting wage: Typically 50–60% of journeyman rate
- Median millwright salary: $61,550/yr (BLS, May 2024)
- Top 10% earn: $97,000+/yr (BLS, May 2024)
- Job outlook: ~1% growth projected 2024–2034 (BLS) — but strong replacement demand
Which union represents millwrights?
Millwrights in the US are primarily represented by two international unions, and which one covers your job site depends heavily on geography and the industry sector you work in.
The United Brotherhood of Carpenters and Joiners of America (UBC) represents the largest share of union millwrights nationally. The UBC has a dedicated Millwright Division with locals in most major industrial states — particularly strong in the Midwest, South, and industrial corridors of the Northeast. If you’re looking at plant maintenance, power generation, paper mills, or general industrial installation work, you’re most likely in UBC territory.
The International Association of Machinists and Aerospace Workers (IAM) represents millwrights primarily in aerospace, defense, and some heavy manufacturing sectors. IAM locals are concentrated in states with major aerospace and defense employers — Washington State, California, Texas, Connecticut, and Kansas especially.
A smaller number of millwrights are represented by the International Brotherhood of Boilermakers (IBB) in power plant and refinery settings, and by IUOE (International Union of Operating Engineers) in some regions for heavy industrial work. If you’re targeting a specific plant or employer, ask HR which union has the collective bargaining agreement for that facility before searching for a local.
Good to know
If you’re unsure which union covers a specific job site or employer in your area, call the employer’s HR department and ask: “Which union represents the millwrights here?” That one question saves hours of searching.
How to find your millwright local by state
United Brotherhood of Carpenters (UBC) — Millwright locals
The UBC’s official local finder is at carpenters.org. On the homepage, click “Find a Council or Local” and enter your zip code. Look for locals with “Millwright” in the name, or contact the Regional Council listed for your state — Regional Councils can point you to the correct millwright local even if it doesn’t show up prominently in a zip search.
Key UBC Regional Councils with strong millwright representation:
| Region / Council | States Covered | Website |
|---|---|---|
| Great Lakes Regional Council of Carpenters | OH, MI, IN, KY | greatlakescarpenters.org |
| Carpenters’ District Council of Greater St. Louis | MO, IL (southern) | stlcarpenters.org |
| Southwest Regional Council of Carpenters | CA, NV, AZ, NM, HI, UT, CO | swrcc.org |
| Mid-Atlantic Regional Council of Carpenters | PA, NJ, DE, MD, DC, VA, WV | marcc.org |
| New England Regional Council of Carpenters | MA, CT, RI, NH, VT, ME | nerccarpenters.org |
| North Central States Regional Council of Carpenters | MN, ND, SD, WI, IA, NE | ncsrcc.org |
| Texas Carpenters and Millwrights Regional Council | TX | texascarpenters.org |
| Pacific Northwest Regional Council of Carpenters | WA, OR, ID, MT, WY, AK | pnrcc.org |
IAM (International Association of Machinists) — Millwright locals
For IAM, use the local finder at goiam.org/locals. IAM districts and locals are organized by industry as much as geography, so you may need to call the district office to confirm which local covers millwright work specifically in your area. IAM District 751 (Washington State) and District 160 (West Coast) are the two largest with significant millwright membership.
Pro tip
When you call a local, ask specifically: “Do you have an open millwright apprenticeship application period coming up?” Locals open and close applications on their own schedules — sometimes once a year, sometimes twice. Calling ahead saves you missing a window by a few weeks.
Finding locals by state — a quick reference
If the online tools aren’t giving you clear results, here’s a direct approach by state for the highest-density millwright states:
- Texas: Texas Carpenters and Millwrights Regional Council — texascarpenters.org — covers the bulk of Texas millwright locals. Also check IAM District 776 (Fort Worth area) for aerospace-adjacent millwright work.
- Ohio: Great Lakes Regional Council of Carpenters — greatlakescarpenters.org — represents millwrights across the state’s heavy industrial corridor.
- Illinois: Mid-America Carpenters Regional Council — midamericacarpenters.org — covers Chicago and northern Illinois, one of the densest millwright markets in the country.
- Pennsylvania: Mid-Atlantic Regional Council of Carpenters — marcc.org — strong presence in Pittsburgh’s industrial sector and the Philadelphia region.
- Washington State: Pacific Northwest Regional Council (UBC) at pnrcc.org for most millwright work; IAM District 751 (iam751.org) for Boeing-adjacent and aerospace facilities.
- Michigan: Great Lakes Regional Council — greatlakescarpenters.org — covers auto manufacturing plants statewide.
- Louisiana / Gulf Coast: Millwright work here is heavily tied to petrochemical plants. Contact the Gulf States Regional Council of Carpenters at gsrcc.org. [NEEDS VERIFICATION — confirm GSRCC covers LA millwright locals specifically]
- California: Southwest Regional Council of Carpenters — swrcc.org — handles millwright work statewide for most industrial sectors.
What millwright locals offer members
Once you’re in a millwright local, you’re not just getting a union card — you’re accessing a package that takes years to replicate on your own as a non-union worker.
Wages and overtime: Union millwright contracts set hourly minimums that are typically 15–30% higher than prevailing non-union rates in the same area, plus defined overtime and double-time rules. Your local’s Business Representative can give you the current wage scale for your area.
Health insurance: Most major millwright locals provide health benefits through joint labor-management trusts — plans like the Carpenters Health and Welfare Fund. Coverage quality varies by local, but union health plans generally outperform what small non-union contractors offer.
Pension and retirement: The UBC’s International Pension Plan and various local annuity funds mean union millwrights are building retirement assets from year one of their apprenticeship. Non-union millwrights are largely on their own here.
Training and certification upgrades: Locals fund training through JATC (Joint Apprenticeship and Training Committee) programs. Beyond the apprenticeship, members can access continuing education for rigging certifications, precision alignment, vibration analysis, and other high-value specialty skills — often at no cost to the member.
Dispatch / job referral: In a dispatch hall model, your local sends you to available jobs at signatory employers. This is especially valuable in industries with project-based work like power plant outages and industrial turnarounds, where jobs last weeks to months and then move.
How to apply for a millwright apprenticeship through your local
Millwright apprenticeships run 4–5 years and combine roughly 8,000 hours of on-the-job training with 600–900 hours of related technical instruction in the classroom. Here’s how the application process works:
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1
Locate your local’s JATC (Joint Apprenticeship and Training Committee) The JATC is the apprenticeship-administering body attached to your local or regional council. It’s separate from the local itself. Find it through the local’s website or by calling the local directly. For UBC millwrights, many JATCs are listed at carpenters.org under “Training.”
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Confirm the application window is open Most locals open apprenticeship applications once or twice per year, not on a rolling basis. Missing the window means waiting up to 12 months. Call the JATC office, check their website, or sign up for any email notification list they offer.
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3
Meet the basic eligibility requirements Standard requirements across most millwright locals: at least 18 years old, high school diploma or GED, valid driver’s license, and ability to pass a drug test. Some locals require a math aptitude test (basic algebra and geometry — study for it). Physical requirements vary but generally require the ability to lift 50 lbs and work at heights.
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4
Submit your application and supporting documents Typical documentation: completed application form, copy of your high school diploma or GED, any post-secondary transcripts, military discharge papers (DD-214) if applicable, and proof of age. Some locals have an application fee of $10–$30.
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5
Complete the aptitude test and interview Most programs rank applicants by a scored process: aptitude test results, interview scores, and sometimes seniority points for prior construction work experience. The math test typically covers fractions, decimals, geometry, and basic algebra. Prepare using free resources at apprenticeship.gov or Khan Academy.
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Receive your placement and start earning on day one Accepted applicants are placed with a signatory employer and begin earning immediately. First-year millwright apprentices typically earn 50–60% of the journeyman wage rate in their local — in higher-wage markets like Illinois, Washington, and New Jersey, that starting rate can be $22–$28/hour before overtime.
Good to know
Veterans receive preference points in most JATC application processes. If you have military service, make sure to submit your DD-214 and ask the JATC coordinator how veterans’ preference is applied to the ranking system — it can meaningfully improve your placement position.
Read our step-by-step guide on how to become a millwright. This guide walks you through every stage of the career path, including apprenticeship, licensing, certifications, and training requirements.
Union vs. non-union millwright work
This is a legitimate career decision, not just an ideological one. Here’s the practical breakdown:
Union millwright
- Defined wage scale — no negotiating your own rate
- Employer-funded health insurance and pension
- Structured 4–5 year apprenticeship with classroom training
- Access to dispatch hall for steady work flow
- Strong in heavy industrial, power, and manufacturing sectors
- Work can require travel to regional job sites (outages, turnarounds)
Non-union millwright
- Wages negotiated individually — higher ceiling possible, lower floor likely
- Benefits vary widely by employer — often weaker than union plans
- Training informal or employer-dependent — no standardized apprenticeship
- More common in smaller industrial facilities and food processing plants
- More geographic flexibility — less pressure to travel for work
- No dues (~1.5–2% of gross wages in most union locals)
The wage premium for union millwrights is real but varies by market. In high-density industrial states like Illinois, Michigan, and Pennsylvania, union millwright journeyman wages run $42–$58/hour on top of benefit packages worth $10–$18/hour more. In lower-density markets, the gap narrows. The BLS-reported national median for millwrights is $61,550/yr (BLS, May 2024), but experienced union millwrights in industrial strongholds consistently clear $80,000–$100,000/yr with overtime.
Millwright salary: what to expect
Millwright compensation varies significantly by union local, industry sector, and experience level. The figures below reflect BLS national data — union wages in high-cost industrial markets will run meaningfully higher.
| Experience Level | Typical Annual Wage | Notes |
|---|---|---|
| Year 1 apprentice | $34,000–$46,000 | 50–60% of journeyman scale; varies by local |
| Year 3 apprentice | $42,000–$56,000 | ~70% of journeyman scale |
| Journeyman (newly licensed) | $55,000–$75,000 | BLS national median: $61,550 (May 2024) |
| Experienced journeyman (5–10 yrs) | $70,000–$90,000 | Overtime adds $10,000–$20,000+ in active plants |
| Foreman / supervisor | $85,000–$110,000 | BLS 90th percentile: $97,000+ (May 2024) |
Source: BLS Occupational Employment and Wage Statistics (OEWS), May 2024. Experience-level ranges derived from BLS 10th–90th percentile data and typical union apprentice wage progression schedules.
Read Millwright Salary by State (2026 Data Guide) to know millwright pay across all US states.
For each trade’s salary comparison by state and experience levels, use our trades pay estimator tool.
Frequently asked questions
What union do millwrights belong to?
Most US millwrights belong to either the United Brotherhood of Carpenters (UBC) or the International Association of Machinists and Aerospace Workers (IAM), depending on region and industry. The UBC represents the majority of millwrights in heavy industrial and construction settings. The IAM covers millwrights primarily in aerospace and defense manufacturing.
How do I find a millwright union local near me?
Go to carpenters.org and use the “Find a Council or Local” tool with your zip code for UBC locals, or goiam.org/locals for IAM locals. If the search results are unclear, call the regional council listed for your state — they can direct you to the specific millwright local in your jurisdiction.
How long is a millwright apprenticeship?
Millwright apprenticeships typically run 4–5 years and require approximately 8,000 hours of on-the-job training combined with 600–900 hours of classroom instruction. You earn wages from your first day — starting at 50–60% of the journeyman rate and stepping up each year.
How much do union millwrights make per hour?
Union millwright journeyman wages vary significantly by local and region. In strong industrial markets like Chicago, Detroit, and Pittsburgh, journeyman rates run $42–$58/hour. The BLS-reported national median for all millwrights (union and non-union combined) is $61,550/yr — approximately $29.59/hour — as of May 2024.
Can I join a millwright union without going through an apprenticeship?
In some cases, yes — if you have documented millwright experience (typically 4+ years of verifiable hours doing millwright-related work), you may be eligible to test out as a journeyman rather than completing the full apprenticeship. Contact the JATC for your local directly and ask about the “journeyman equivalency” or “experienced worker” application process.
Do millwrights need to travel for union work?
It depends on your local and the work available in your area. Millwrights in high-demand sectors like power plant outages and industrial turnarounds often travel regionally for projects lasting 2–12 weeks. Travel pay and per diem are typically negotiated into project agreements. If you’re not interested in travel, discuss work patterns with your local before applying — steady local shop work does exist in many markets.
What’s the difference between a millwright and a maintenance mechanic?
Millwrights specialize in the installation, alignment, and maintenance of industrial machinery and mechanical equipment — think conveyor systems, turbines, pumps, compressors, and production machinery. Maintenance mechanics typically do broader facility maintenance work. In union settings, millwright is a defined trade classification with its own apprenticeship and wage scale; “maintenance mechanic” is more of a general job title used by non-union employers.
Your fastest path to a millwright union local is a direct phone call — find your regional council at carpenters.org or goiam.org/locals, call the number listed, and ask two questions: which local covers millwright work in your zip code, and when the next apprenticeship application window opens. That’s it.
If you want to understand what the millwright role involves before you apply, read our complete union vs. non-union trades comparison and check the highest paying trade jobs guide to see where millwright sits in the broader trades landscape.
