Idaho 401(k) plans with 5,000 or more participants

7 large 401(k) plans are sponsored from Idaho and reported 5,000 or more participants on their latest Form 5500. All of them are listed here, ranked by active participants.

Active participants means people still building up a balance, which is the count Form 5500 reports separately from total participants. Every plan links to its own page, where the figures below come with the filing they were read from.

The plans

Ranked by active participants, the same order the site publishes plan pages in. Assets are Schedule H total assets at end of plan year, in USD. Cost per participant is plan-paid administrative expense, and a filing that itemized none says so instead of showing a zero.
#	Plan	City	Active	Assets	Cost / participant
1	Winco Foods 401(k) PlanWinco Holdings, Inc.	Boise	24,430	$289.6M	$7.07
2	Micron Technology Inc. Retirement At Micron (Ram) PlanMicron Technology, Inc.	Boise	9,878	$3.7B	$77.95
3	Simplot Retirement Savings PlanJ.R. Simplot Company	Boise	9,014	$1.6B	$85.99
4	Idaho National Laboratory Employee Investment PlanBattelle Energy Alliance, LLC And Idaho Environmental Coalition, LLC	Idaho Falls	6,578	$2.5B	$117.67
5	Lamb Weston, Inc. 401(k) Plan For Plant Hourly EmployeesLamb Weston, Inc.	Eagle	5,240	$253.5M	$92.22
6	Woodgrain Millwork, Inc. Employee Savings Plan And TrustWoodgrain Inc.	Fruitland	4,444	$271.8M	$84.33
7	Boise Cascade Company Savings PlanBoise Cascade Company	Boise	4,101	$740.4M	$102.25

Other plan sizes in Idaho

Fees per participant fall as plans get bigger, so the useful comparison is inside a size band rather than across them.

100 to 499 participants (185)500 to 999 participants (28)1,000 to 4,999 participants (39)

Back to Idaho

Idaho 401(k) plans has the median plan-paid fee against the national one, the largest plans, and the other size bands. The whole directory starts at states.