NAICS 331 Retirement Plan Benchmarks

Industry benchmarks aggregated by NAICS classification. Sourced from 3,472 Form 5500 filings for plan year 2024.

Headline numbers (2024)

Plans: 3,472
Total assets: $77.8B
Total participants: 972,166
Median expense ratio: 0.23%
Median employer contribution per active participant: $1,986
Median account balance: $65,453
3-year asset growth (2022–2024): +4.2%

Expense ratio distribution

25th percentile: 0.07%
Median: 0.23%
75th percentile: 0.47%

Where the fees go (average mix)

Admin / Recordkeeping: 35.4%
Investment Management: 47.9%
Audit: 5.8%
Legal: 0.6%

Employer contribution generosity

Median per active participant: $1,986
Plans with $0 employer match: —

3-year trend

Year	Plans	Assets	Participants	Median fee	Median employer $
2022	3,757	$74.7B	999,825	0.32%	—
2023	3,730	$81.6B	1,021,869	0.23%	—
2024	3,472	$77.8B	972,166	0.23%	$1,986

Methodology

All metrics are calculated from U.S. Department of Labor Form 5500 annual filings. The slice "NAICS 331" is served from the accepted-generation projection 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/industry/331.