Black Hills Corporation 401(k) Plan: Login, Facts & Contact Information

Black Hills Corporation 401(k) Plan Facts

Plan name
BLACK HILLS CORPORATION 401(K) RETIREMENT SAVINGS PLAN
Plan type
401(k) with employer contributions and profit sharing
Plan sponsor
BLACK HILLS CORPORATION
Participants
3,744 (2,830 active employees)
Former employees with a balance
849
Plan assets
$811,221,285 at Dec 31, 2024
Average account balance
$221,101 across 3,669 accounts
Employer contributions
$27,930,115 in plan year 2024 (43% of all contributions)
Recordkeeper
Schwab Retirement Plan Services Inc
Plan year
Jan 1, 2024 – Dec 31, 2024
Plan established
Jul 1, 1982
✓ Employer contributions✓ Automatic enrollment✓ Default investment for undecided participants✓ Participants choose their own investments✓ Self-directed brokerage window✓ Profit sharing— Company stock (ESOP)

Source: Form 5500 for plan year 2024 (Jan 1, 2024 – Dec 31, 2024), filed Jun 25, 2025. Public filing with the U.S. Department of Labor.

Money in and out in plan year 2024

  • $64.6 million went into the plan in contributions, $27.9 million of it from the employer (43%).
  • $75.4 million was paid out to participants.
  • Investment and other income added $95.2 million.
  • Administrative expenses were $149,200, about $41 per account.

How the Black Hills Corporation 401(k) changed, 2019–2024

Plan yearParticipantsPlan assetsEmployer contributionsBenefits paid
20193,485$552.8 million$23.9 million$48.0 million
20203,597$646.6 million$25.2 million$39.7 million
20213,687$724.8 million$26.6 million$68.2 million
20223,618$615.3 million$27.2 million$52.1 million
20233,789$727.0 million$29.2 million$54.0 million
20243,744$811.2 million$27.9 million$75.4 million

Black Hills Corporation 401(k) Contact Information

Phone
605-721-1700
Mailing address
PO BOX 1400, RAPID CITY SD 57709
Plan sponsor
BLACK HILLS CORPORATION
Employer identification number (EIN)
46-0458824
Plan number
003

Questions about the Black Hills Corporation 401(k)

Does Black Hills Corporation contribute to the 401(k)?

Yes. The plan reports an employer contribution arrangement. In plan year 2024 the employer contributed $27.9 million, 43% of all contributions.

Does the Black Hills Corporation 401(k) have automatic enrollment?

Yes. The plan reports automatic enrollment of eligible employees.

How many people are in the Black Hills Corporation 401(k) plan?

3,744 participants at the start of plan year 2024, 2,830 of them active employees, and 849 former employees who still had money in the plan.

What is the average 401(k) balance at Black Hills Corporation?

About $221,101 per account: $811.2 million in plan assets across 3,669 accounts with a balance at the end of plan year 2024.

Who manages the Black Hills Corporation 401(k) accounts?

Schwab Retirement Plan Services (listed on the filing as SCHWAB RETIREMENT PLAN SERVICES INC) is the plan's recordkeeper, which is where participants log in to see their balance.

I no longer work at Black Hills Corporation. How do I access my 401(k)?

Your account stays with Schwab Retirement Plan Services after you leave, so you can log in with the same credentials. If your balance was small, the plan may have rolled it into an IRA in your name. If you can't find it, Beagle can locate it for you.

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