401(k) · DOL Form 5500 · 2024

Midamerican Energy Company 401(k) Plan

Data updated 2026-08-25

$1.0B
Total assets Very large vs avg
5,020
Participants Above avg headcount
98th
Percentile by assets National rank
$201,037
Avg per participant Above avg balance/head
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Official DOL plan name: Midamerican Energy Company Retirement Savings Plan · Sponsored by Midamerican Energy Company · Iowa · Utilities

$1.0B in assets, 5,020 participants

Midamerican Energy Company's Midamerican Energy Company Retirement Savings Plan reported $1.0B in total assets and 5,020 participants in its 2024 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.

  • #642 in Utilities (732 peers)

Coverage in Iowa

Midamerican Energy Company Retirement Savings Plan covers 5,020 participants in Iowa, 8.2x the typical Iowa plan (state average ~609 per filing). Assets: $1.0B.

#642
in Utilities (732 peers)
+1.8%
assets growth YoY
10×
vs typical plan assets (national mean)

Midamerican Energy Company Retirement Savings Plan's outsized position by total assets

Midamerican Energy Company Retirement Savings Plan vs every filed plan by assets

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

$1,009,204,226 Top 2% higher than 98% 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

Midamerican Energy Company Retirement Savings Plan's large-plan peer group by participant headcount

Plan-year 2024 Form 5500 filings with a reported participant count, partitioned by headcount band, not by assets. Midamerican Energy Company Retirement Savings Plan lands in the large band (5,020 participants).

What changed between DOL Form 5500 filings

plan year 2023 → plan year 2024

  • Midamerican Energy Company Retirement Savings Plan reported net income fell from $282M in the plan year 2023 filing to $18M in the plan year 2024 filing.
  • Midamerican Energy Company Retirement Savings Plan end-of-year assets fell from $1.7B in the plan year 2023 filing to $1.0B in the plan year 2024 filing.
  • Midamerican Energy Company Retirement Savings Plan reported participants fell from 5,056 in the plan year 2023 filing to 5,020 in the plan year 2024 filing.

See the national 2023→2024 release diff →

EBSA filing schedule strip

Filing strip 421425214 · Midamerican Energy Company PY 2024 · 401(k)

Midamerican Energy Company Retirement Savings Plan · $1.0B · 5,020 · 98th

  • 5500 $1.0B
  • 5500 5,020
  • 5500 98th
  • 5500 401(k)
  • 5500 near Ross Stores, Inc. 401(k) Savings Plan
  • 5500 ind #642

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 Utilities retirement plans → · Plans in Iowa →

Midamerican Energy Company Retirement Savings Plan in the asset neighbourhood

Midamerican Energy Company Retirement Savings PlanMidamerican Energy Company R…$1.0BRoss Stores, Inc. 401(k) Savings PlanRoss Stores, Inc. 401(k) Sav…$1.0BPbf Energy Retirement Savings PlanPbf Energy Retirement Saving…$1.0BConduent Savings Plan$1.0BUsg Corporation Investment PlanUsg Corporation Investment P…$1.0B
End-of-year total assets ($B) among Midamerican Energy Company Retirement Savings Plan and nearest nationwide 401(k) peers. Source: DOL Form 5500 plan year 2024.

Iowa filing particulars

Total Assets (Beginning of Year)$991M
Net Assets (End of Year)$1.0B
Net Income$18M
Employer EIN421425214
Plan Effective Date1976-08-01
Filing StatusFILING RECEIVED

Sponsor Plan History (Midamerican Energy Company)

Sponsor-wide plan assets over time

All Midamerican Energy Company plans reported in each filing year

Latest sponsor-wide plan assets
$12.0B 575.5536742641146% vs 2022
2024 filing year
$0B$5B$10B$15B 202220232024 $1.78B $12B ▲ +574.2%
Year Plans Participants Total Assets
2022 2 8,307 $1.8B
2023 2 8,058 $2.2B
2024 10 49,803 $12.0B

Nearby 401(k) Plans in Iowa

Peer 401(k) plans, same state, same plan type, ranked by total assets.

Midamerican Energy Company Retirement Savings Plan vs. nearby 401(k) plans in Iowa, assets vs. participants Scatter plot of 6 data points. 0200004000060000 012345 Total assets ($B) Participants Midamerican Energy Company Retirement Savings Plan, Total assets ($B): 1.009204226 · Participants: 5020Midamerican Energy Company Retirement Savings PlanThe Principal Select Savings Plan, Total assets ($B): 4.579548793 · Participants: 12841The Principal Select Savings PlanThe Rsm US LLP Retirement Plan, Total assets ($B): 3.375271119 · Participants: 14728The Rsm US LLP Retirement PlanIowa Health System Section 401(k) Retirement Savings Plan, Total assets ($B): 3.306182291 · Participants: 25072Iowa Health System Section 401(k) Retirement Savings PlanThe Hy-Vee and Affiliates 401(k) Plan, Total assets ($B): 3.1084169 · Participants: 55411The Hy-Vee and Affiliates 401(k) PlanTransamerica 401(k) Retirement Savings Plan, Total assets ($B): 2.720479704 · Participants: 8059Transamerica 401(k) Retirement Savings Plan
Midamerican Energy Company Retirement Savings Plan vs. nearby 401(k) plans in Iowa, assets vs. participants

Scale composition for Midamerican Energy Company Retirement Savings Plan

Midamerican Energy Company Retirement Savings Plan reports $1.0B in end-of-year assets across 5,020 participants (0.008% of the $12.3T held by all Form 5500 filers in the national rollup , and 0.005% of 93,925,755 covered participants) - about $201,037 per participant (1.5x the national average assets-per-participant) . Net income for plan year 2024 was $18M.

This plan identity (EIN 421425214, plan #002) has 11 Form 5500 filings on file from 2022 to 2024 , with end-of-year assets moving from $1.3B to $2.0B (+54.3%) while covered participants moved from 4,986 to 6,813 . Single-year sparse filers cannot show that trail.

Plan year Participants EOY assets Filing
2022 4,986 $1.3B Open filing
2023 5,056 $1.7B Open filing
2024 5,055 $1.4B Open filing
2024 4,976 $1.1B Open filing
2024 4,964 $1.6B Open filing
2024 5,056 $1.0B Open filing
2024 5,086 $964M Open filing
2024 5,052 $1.3B Open filing
2024 5,020 $1.0B This page
2024 4,976 $1.1B Open filing
2024 · index core 6,813 $2.0B Open filing

The same sponsor also keeps 2 other index-core plans on PlainRetire:

Midamerican Energy Company Retirement Savings Plan's out-of-state 401(k) peers by assets and headcount

Outside Iowa, the nearest 401(k) by assets is Ross Stores, Inc. 401(k) Savings Plan in CA ($1.0B); by covered participants it is Generac Power Systems, Inc. Employees 401(k) Savings Plan in WI (5,021 participants). Same-state nearby plans are listed separately above.

Closest by plan assets

Nearest other-state filings by tot_assets_eoy ($1.0B here).

Similar participant headcount

Nearest other-state filings by covered participants (5,020 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 Midamerican Energy Company Retirement Savings Plan assets move in 2024? ▼
Midamerican Energy Company Retirement Savings Plan edged up modestly - up 1.8% during 2024, from $991M to $1.0B. Reported net income was $18M.
How have Midamerican Energy Company plan assets changed over time? ▼
Across 3 plan years on file (2022-2024), Midamerican Energy Company's sponsor-wide assets grew 575.6%, from $1.8B to $12.0B.
Where does Midamerican Energy Company Retirement Savings Plan rank by assets among Form 5500 filers? ▼
Midamerican Energy Company Retirement Savings Plan ranks in the 98th percentile by end-of-year assets among 123,622 plans that reported assets for plan year 2024 (in the top 5% of all filed plans by assets).
Which 401(k) plans are similar in size to Midamerican Energy Company Retirement Savings Plan? ▼
Among 401(k) plans in other states, the closest by assets is Ross Stores, Inc. 401(k) Savings Plan in CA ($1.0B, 60,481 participants).
Which 401(k) plans cover a similar participant headcount to Midamerican Energy Company Retirement Savings Plan? ▼
Among 401(k) plans in other states, the closest by covered participants is Generac Power Systems, Inc. Employees 401(k) Savings Plan in WI (5,021 participants, $344M in assets).