Defined Benefit (Pension) · DOL Form 5500 · 2024

Plumbers and Steamfitters Local 166 Pension Plan

Data updated 2026-08-25

$95M
Total assets Below avg plan size
641
Participants Below avg headcount
90th
Percentile by assets National rank
$148,329
Avg per participant Above avg balance/head
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Official DOL plan name: Plumbers & Steamfitters Local 166 AFL-CIO Pension Plan · Sponsored by Plumbers and Steamfitters Local 166 · Indiana · Construction

$95M in assets, 641 participants

Plumbers and Steamfitters Local 166's Plumbers & Steamfitters Local 166 AFL-CIO Pension Plan reported $95M in total assets and 641 participants in its 2024 DOL Form 5500 filing, ranking in the 90th percentile by assets among filed plans. Figures are as reported by the plan sponsor to the Department of Labor, not audited or endorsed by PlainRetire.

  • #8,004 in Construction (9,039 peers)

Where Plumbers & Steamfitters Local 166 AFL-CIO Pension Plan sits by assets

Plumbers & Steamfitters Local 166 AFL-CIO Pension Plan sits in the top 10% of all filed plans by assets, $95M for 641 participants (~$148,329/participant), up 10.1% in 2024.

#8,004
in Construction (9,039 peers)
+10.1%
assets growth YoY
1.0×
vs typical plan assets (national mean)

Plumbers & Steamfitters Local 166 AFL-CIO Pension Plan's outsized position by total assets

Plumbers & Steamfitters Local 166 AFL-CIO Pension Plan vs every filed plan by assets

End-of-year total assets · plan year 2024 · DOL Form 5500

$95,078,991 Top 10% higher than 90% of 123,620 filed plans

This plan $0 $2,050,000,000 every filed plan with reported assets, bucketed by value

Dashed line + filled bar = this entry, among filed plans.

Source U.S. Department of Labor Form 5500 filings (EBSA) · plan year 2024

Plumbers & Steamfitters Local 166 AFL-CIO Pension Plan among mid-size filed plans by headcount

Plan-year 2024 Form 5500 filings with a reported participant count, partitioned by headcount band, not by assets. Plumbers & Steamfitters Local 166 AFL-CIO Pension Plan sits mid-pack in the medium band (641 participants).

What changed between DOL Form 5500 filings

plan year 2023 → plan year 2024

  • Plumbers & Steamfitters Local 166 AFL-CIO Pension Plan reported net income fell from $10M in the plan year 2023 filing to $9M in the plan year 2024 filing.
  • Plumbers & Steamfitters Local 166 AFL-CIO Pension Plan end-of-year assets rose from $86M in the plan year 2023 filing to $95M in the plan year 2024 filing.
  • Plumbers & Steamfitters Local 166 AFL-CIO Pension Plan reported participants rose from 604 in the plan year 2023 filing to 641 in the plan year 2024 filing.

See the national 2023→2024 release diff →

DOL schedule card

Filing strip 516132690 · Plumbers and Steamfitters Local 166 PY 2024 · Defined Benefit (Pension)

Plumbers & Steamfitters Local 166 AFL-CIO Pension Plan · $95M · 641 · 90th

  • TYPE $95M
  • TYPE 641
  • TYPE 90th
  • TYPE Defined Benefit (Pension)
  • TYPE near Mountaineer Gas Company Employees' Defined Benefit Pension Plan
  • TYPE ind #8004

Stamps derive from this plan's Form 5500 line items (assets, participants, type, EIN, cohort placement) - not a quality rating of the sponsor. Read with Construction retirement plans → · Plans in Indiana →

Plumbers & Steamfitters Local 166 AFL-CIO Pension Plan in the asset neighbourhood

Roseburg Forest Products Co Retirement PlanRoseburg Forest Products Co …$95MMerged Utu and Greenbrier Pension PlanMerged Utu and Greenbrier Pe…$95MMountaineer Gas Company Employees' Defined Benefit Pension PlanMountaineer Gas Company Empl…$95MPlumbers & Steamfitters Local 166 AFL-CIO Pension PlanPlumbers & Steamfitters Loca…$95MHouston Hospitals, Inc. Retirement PlanHouston Hospitals, Inc. Reti…$95M
End-of-year total assets ($M) among Plumbers & Steamfitters Local 166 AFL-CIO Pension Plan and nearest nationwide Defined Benefit (Pension) peers. Source: DOL Form 5500 plan year 2024.

Scale-class filing particulars (2024)

Total Assets (Beginning of Year)$86M
Net Assets (End of Year)$95M
Net Income$9M
Employer EIN516132690
Plan Effective Date1961-06-01
Filing StatusFILING RECEIVED

Sponsor Plan History (Plumbers and Steamfitters Local 166)

Sponsor-wide plan assets over time

All Plumbers and Steamfitters Local 166 plans reported in each filing year

Latest sponsor-wide plan assets
$95M 25.02394980937327% vs 2022
2024 filing year
$70M$80M$90M$100M 202220232024 $76.1M $95.1M ▲ +25.0%
Year Plans Participants Total Assets
2022 1 563 $76M
2023 1 604 $86M
2024 1 641 $95M

Nearby Defined Benefit (Pension) Plans in Indiana

Peer Defined Benefit (Pension) plans, same state, same plan type, ranked by total assets.

Plumbers & Steamfitters Local 166 AFL-CIO Pension Plan vs. nearby Defined Benefit (Pension) plans in Indiana, assets vs. participants Scatter plot of 6 data points. -10000010000200003000040000 -5051015 Total assets ($B) Participants Plumbers & Steamfitters Local 166 AFL-CIO Pension Plan, Total assets ($B): 0.095078991 · Participants: 641Plumbers & Steamfitters Local 166 AFL-CIO Pension PlanThe Lilly Retirement Plan, Total assets ($B): 11.79293888 · Participants: 19897The Lilly Retirement PlanCummins Pension Plan, Total assets ($B): 3.225499056 · Participants: 30640Cummins Pension PlanIndiana Laborers Pension Fund, Total assets ($B): 1.815373164 · Participants: 11039Indiana Laborers Pension FundElevance Health Cash Balance Plan a, Total assets ($B): 1.237231976 · Participants: 7552Elevance Health Cash Balance Plan aNisource Pension Plan, Total assets ($B): 1.003483487 · Participants: 2133Nisource Pension Plan
Plumbers & Steamfitters Local 166 AFL-CIO Pension Plan vs. nearby Defined Benefit (Pension) plans in Indiana, assets vs. participants
Compare Plumbers & Steamfitters Local 166 AFL-CIO Pension Plan side-by-side with 3 peers →

Plumbers & Steamfitters Local 166 AFL-CIO Pension Plan's out-of-state Defined Benefit (Pension) peers by assets and headcount

Outside Indiana, the nearest Defined Benefit (Pension) by assets is Mountaineer Gas Company Employees' Defined Benefit Pension Plan in WV ($95M); by covered participants it is Retirement Income Plan for Employees of Armstrong World Industries Inc in PA (641 participants). Same-state nearby plans are listed separately above.

Similar participant headcount

Nearest other-state filings by covered participants (641 participants); asset peers above are excluded.

DOL Form 5500 plan year 2024. Asset totals can differ widely at the same headcount; neither axis is a quality rating.

Frequently Asked Questions

How did Plumbers & Steamfitters Local 166 AFL-CIO Pension Plan assets move in 2024? ▼
Plumbers & Steamfitters Local 166 AFL-CIO Pension Plan grew at a solid clip - up 10.1% during 2024, from $86M to $95M. Reported net income was $9M.
How have Plumbers and Steamfitters Local 166 plan assets changed over time? ▼
Across 3 plan years on file (2022-2024), Plumbers and Steamfitters Local 166's sponsor-wide assets grew 25.0%, from $76M to $95M.
Where does Plumbers & Steamfitters Local 166 AFL-CIO Pension Plan rank by assets among Form 5500 filers? ▼
Plumbers & Steamfitters Local 166 AFL-CIO Pension Plan ranks in the 90th percentile by end-of-year assets among 123,622 plans that reported assets for plan year 2024 (in the top 10% of all filed plans by assets).
Which Defined Benefit (Pension) plans are similar in size to Plumbers & Steamfitters Local 166 AFL-CIO Pension Plan? ▼
Among Defined Benefit (Pension) plans in other states, the closest by assets is Mountaineer Gas Company Employees' Defined Benefit Pension Plan in WV ($95M, 444 participants).
Which Defined Benefit (Pension) plans cover a similar participant headcount to Plumbers & Steamfitters Local 166 AFL-CIO Pension Plan? ▼
Among Defined Benefit (Pension) plans in other states, the closest by covered participants is Retirement Income Plan for Employees of Armstrong World Industries Inc in PA (641 participants, $382M in assets).

Source: U.S. Department of Labor, Employee Benefits Security Administration (EBSA), Form 5500 public disclosure dataset. Plan year 2024.

Source: DOL EFAST2 filing system (efast.dol.gov) - original filing retrieval by EIN 516132690.

Read our methodology - how this data is sourced, computed, and verified.

Data sourced from U.S. Department of Labor Form 5500 filings (EBSA). See our methodology for details.