Defined Benefit (Pension) · DOL Form 5500 · 2023

Board of Trustees of Iron Workers St. Louis District Council Pension Pension Plan

Data updated 2026-08-11

$644M
Total assets: 1,935
Participants: 98th
Percentile by assets: $332,641
Avg per participant

Official DOL plan name: Iron Workers St. Louis District Council Pension Trust · Sponsored by Board of Trustees of Iron Workers St. Louis District Council Pension · Missouri · Construction

$644M in assets, 1,935 participants

Board of Trustees of Iron Workers St. Louis District Council Pension's Iron Workers St. Louis District Council Pension Trust reported $644M in total assets and 1,935 participants in its 2023 DOL Form 5500 filing, ranking in the 98th 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.

98th percentile by assets (of 127,072 plans)
#8,838 in Construction (9,030 peers)

Coverage in Missouri

Iron Workers St. Louis District Council Pension Trust covers 1,935 participants in Missouri, 2.6x the typical Missouri plan (state average ~737 per filing). Assets: $644M.

$644M
total plan assets (2023 EOY): 1,935
covered participants: 98th
percentile by assets (of 127,072 plans): $332,641
avg assets per participant

Iron Workers St. Louis District Council Pension Trust reported net income rose from $2M in the plan year 2022 filing to $87M in the plan year 2023 filing.
Iron Workers St. Louis District Council Pension Trust end-of-year assets rose from $555M in the plan year 2022 filing to $644M in the plan year 2023 filing.
Iron Workers St. Louis District Council Pension Trust reported participants rose from 1,835 in the plan year 2022 filing to 1,935 in the plan year 2023 filing.

See the national 2022→2023 release diff →

State

Missouri

Industry

Construction

Participants vs Missouri filers

In Missouri, the average filing covers about 737 participants across 2,297 plans. Iron Workers St. Louis District Council Pension Trust reports 1,935 participants - 2.6x that state average ($644M EOY assets).

Missouri filing particulars

Total Assets (Beginning of Year)	$555M
Net Assets (End of Year)	$641M
Net Income	$87M
Employer EIN	436052659
Plan Effective Date	1963-07-30
Filing Status	FILING RECEIVED

Sponsor Plan History (Board of Trustees of Iron Workers St. Louis District Council Pension)

Total plan assets by year, all Board of Trustees of Iron Workers St. Louis District Council Pension plans on file

Year	Plans	Participants	Total Assets
2022	1	1,835	$555M
2023	1	1,935	$644M

Nearby Defined Benefit (Pension) Plans in Missouri

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

Iron Workers St. Louis District Council Pension Trust vs. nearby Defined Benefit (Pension) plans in Missouri, assets vs. participants

Boilermaker-Blacksmith National Pension Trust $7.8B · 30,358
Ameren Retirement Plan $4.7B · 10,156
Co-Op Retirement Plan $3.5B · 14,993
Emerson Electric Company Retirement Plan $3.4B · 2,671
Carpenters Pension Trust Fund of St. Louis $3.3B · 11,420

Compare Iron Workers St. Louis District Council … side-by-side with 3 peers →

Similar-Sized Defined Benefit (Pension) Plans Nationally

Defined Benefit (Pension) plans in other states closest to Iron Workers St. Louis District Council Pension Trust by total assets, not by location.

Bay Area Painters & Tapers Pension Trust (CA) $644M · 3,669
Usg Corporation Retirement Plan (IL) $642M · 5,647
Steamfitters Local Union No. 420 Pension Plan (PA) $646M · 2,456
Memorial Hermann Pension Plan (TX) $642M · 5,830

Frequently Asked Questions

How did Iron Workers St. Louis District Council Pension Trust assets move in 2023? ▼

Iron Workers St. Louis District Council Pension Trust grew sharply - up 16.0% during 2023, from $555M to $644M. Reported net income was $87M.

How have Board of Trustees of Iron Workers St. Louis District Council Pension plan assets changed over time? ▼

Across 2 plan years on file (2022-2023), Board of Trustees of Iron Workers St. Louis District Council Pension's sponsor-wide assets grew 16.0%, from $555M to $644M.

Where does Iron Workers St. Louis District Council Pension Trust rank by assets among Form 5500 filers? ▼

Iron Workers St. Louis District Council Pension Trust ranks in the 98th percentile by end-of-year assets among 127,072 plans that reported assets for plan year 2023 (in the top 5% of all filed plans by assets).

Which Defined Benefit (Pension) plans are similar in size to Iron Workers St. Louis District Council Pension Trust? ▼

Among Defined Benefit (Pension) plans in other states, the closest by assets is Bay Area Painters & Tapers Pension Trust in CA ($644M, 3,669 participants).

Next read for Iron Workers St. Louis District Council …

Filing takeaways

Ways to act on Iron Workers St. Louis District Council Pension Trust's numbers.

By total assets, Iron Workers St. Louis District Council Pension Trust ranks in the top 5% of all filed plans by assets. See the largest plans
Compare it side-by-side against 3 similar Defined Benefit (Pension) plans in Missouri. Compare plans
Board of Trustees of Iron Workers St. Louis District Council Pension's sponsor-wide assets have grown 16.0% since 2022 across 2 plan years on file. More Construction plans

Source: U.S. Department of Labor, Employee Benefits Security Administration (EBSA), Form 5500 public disclosure dataset. Plan year 2023.

Source: DOL EFAST2 filing system (efast.dol.gov) - original filing retrieval by EIN 436052659.