NAICS 321 Retirement Plan Benchmarks

Industry benchmarks aggregated by NAICS classification. Sourced from 2,600 Form 5500 filings for plan year 2024.

Headline numbers (2024)

Plans: 2,600
Total assets: $34.3B
Total participants: 579,322
Median expense ratio: 0.22%
Median employer contribution per active participant: $1,635
Median account balance: $49,382
3-year asset growth (2022–2024): +12.6%

Expense ratio distribution

25th percentile: 0.08%
Median: 0.22%
75th percentile: 0.48%

Where the fees go (average mix)

Admin / Recordkeeping: 36.4%
Investment Management: 48.9%
Audit: 7.1%
Legal: 0.4%

Employer contribution generosity

Median per active participant: $1,635
Plans with $0 employer match: —

3-year trend

Year	Plans	Assets	Participants	Median fee	Median employer $
2022	2,751	$30.4B	609,884	0.37%	—
2023	2,751	$34.3B	608,774	0.22%	—
2024	2,600	$34.3B	579,322	0.22%	$1,635

Methodology

All metrics are calculated from U.S. Department of Labor Form 5500 annual filings. The slice "NAICS 321" 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/321.