Illinois Retirement Plan Benchmarks

Statewide benchmarks across every Form 5500 filer headquartered in the state. Sourced from 36,709 Form 5500 filings for plan year 2024.

Headline numbers (2024)

Plans: 36,709
Total assets: $863.4B
Total participants: 566,244
Median expense ratio: 0.34%
Median employer contribution per active participant: $2,540
Median account balance: $67,643
3-year asset growth (2022–2024): +47.5%

Expense ratio distribution

25th percentile: 0.11%
Median: 0.34%
75th percentile: 0.93%

Where the fees go (average mix)

Admin / Recordkeeping: 22.6%
Investment Management: 20.4%
Audit: 2.4%
Legal: 0.4%

Employer contribution generosity

Median per active participant: $2,540
Plans with $0 employer match: 8,795 (24.0%)

3-year trend

Year	Plans	Assets	Participants	Median fee	Median employer $
2022	31,330	$585.2B	445,086	0.41%	$2,563
2023	35,300	$794.9B	537,232	0.35%	$2,588
2024	36,709	$863.4B	566,244	0.34%	$2,540

Methodology

All metrics are calculated from U.S. Department of Labor Form 5500 annual filings. The slice "Illinois" includes 36,709 plans for plan year 2024. Medians use percentile_cont over reported values; zero/null values are excluded from rate-style metrics.

Citation: PlanProvider.Pro, Form 5500 Benchmarks 2024. Free for editorial use with attribution + link to https://planprovider.pro/benchmarks/state/illinois.