State retirement profile · Form 5500

Retirement Plans in South Dakota

According to DOL Form 5500 filings (plan year 2024), employer-sponsored 401(k), pension, and other retirement plans headquartered in South Dakota report the totals below.

Data updated 2026-08-25

321
Plans
$8.4B
Total assets
#51
By assets

$8.4B across 321 plans

According to DOL Form 5500 filings (plan year 2024), South Dakota has 321 employer-sponsored retirement plans holding $8.4B in total assets for 108,998 participants, ranking 51st nationally by plan assets, with 78% structured as 401(k)s and an average of $26M per plan.

  • 51st nationally by plan assets
  • 78% 401(k) plans

The state in one line

South Dakota hosts 321 employer-sponsored retirement plans holding $8.4B for 108,998 participants, the 51st-largest state by plan assets.

$8.4B
total plan assets
321
employer plans
$77,242
avg assets per participant
78%
of plans are 401(k)s
401(k) Plans
251
Participants
108,998

What the Form 5500 Data Shows for South Dakota

South Dakota: 321 employer-sponsored plans (251 401(k)), $8.4B aggregate assets, 108,998 participants. Average plan: $26M; largest is Black Hills Corporation 401(k) Retirement Savings Plan at $811M. Leading sector by assets: Healthcare & Social Assistance (23%). These figures aggregate the 321 Form 5500 filings South Dakota sponsors submitted for plan year 2024, counted by sponsor headquarters rather than participant residence; a plan administered in South Dakota can cover workers across several states, and the methodology page details that HQ-vs-residence distinction. DOL Form 5500 methodology + HQ-vs-residence caveats →

Healthcare & Social Assistance leads South Dakota plan assets (23%)

Among plans headquartered here, Healthcare & Social Assistance accounts for $1.9B across 60 filings, ahead of Finance & Insurance at $1.5B. Sector mix is a Form 5500-derived signal: it reflects where sponsors file from, not where every participant lives.

DOL Form 5500 plan year 2024

South Dakota hosts 28 ESOP filings

Employee Stock Ownership Plans here hold $491M. ESOP density is uneven across states; when the count clears a meaningful floor, the ESOP ranking and industry pages are the better drill-downs than a 401(k)-only read.

DOL Form 5500 plan year 2024

Where South Dakota sits in the Form 5500 corpus

South Dakota is a smaller Form 5500 host by plan assets (#51 of 56). A single large sponsor can move the state total; read the largest-plan share before treating the average as typical.

DOL Form 5500 plan year 2024

South Dakota's place in the national asset distribution

All states with reported Form 5500 plan assets · plan year 2024

$8,419,177,683 11th percentile higher than 11% of 56 states with reported plan assets

South Dakota $0 $1,324,371,844,360 state retirement-plan assets, bucketed by value

Dashed line + filled bar = this entry, among states with reported plan assets.

Source U.S. Department of Labor, EBSA Form 5500 public disclosure dataset · plan year 2024

South Dakota's retirement-plan mix

1. 401(k)2512. ESOP283. Profit Sharing194. Other165. Defined Benefit (Pension)5
The five most common Form 5500 plan types among sponsors headquartered in South Dakota. This count describes filings, not participants or assets.

Source: U.S. Department of Labor, EBSA Form 5500 public disclosure dataset · plan year 2024.

Industry mix in South Dakota

Top sectors by Form 5500 plan assets for sponsors headquartered here (plan year 2024).

Industry Plans Assets
Healthcare & Social Assistance 60 $1.9B
Finance & Insurance 35 $1.5B
Manufacturing 43 $1.4B
Utilities 2 $1.1B
Professional & Technical Services 30 $544M

Largest Plans in South Dakota

# Plan Name Type Participants Total Assets
1 Black Hills Corporation 401(k) Retirement Savings Plan 401(k) 2,881 $811M
2 Monument Health, Inc. 403(b) Plan Other 5,261 $365M
3 Good Samaritan Society 401(k) Plan 401(k) 12,199 $278M
4 Black Hills Retirement Plan Defined Benefit (Pension) 692 $272M
5 Poet 401(k) Plan 401(k) 2,380 $266M
6 Daktronics, Inc. 401(k) Plan 401(k) 2,369 $263M
7 Premier 401(k) Plan 401(k) 1,821 $241M
8 Pathward, National Association 401(k) Plan 401(k) 1,241 $174M
9 401(k) Simplified Flexible 401(k) 3,289 $159M
10 Fishback Financial Corporation 401(k) Profit Sharing Plan 401(k) 714 $113M
11 The First National Bank in Sioux Falls Employees Profit Sharing Plan 401(k) 281 $110M
12 Yankton Medical Clinic P.C. Profit Sharing Plan & Trust 401(k) 311 $107M
13 Dacotah Banks, Inc. 401(k) Savings Plan 401(k) 625 $107M
14 Monument Health, Inc. Pension Plan Defined Benefit (Pension) 2,726 $105M
15 Showplace Wood Products, Inc. Employee Stock Ownership Plan ESOP 529 $104M
16 Performance Bankers, Inc. Retirement Savings Plan 401(k) 752 $101M
17 Associated General Contractors of Sd 401(k) Profit Sharing Plan 401(k) 1,328 $96M
18 Sonifi Solutions, Inc. 401(k) Plan 401(k) 620 $95M
19 First Dakota Financial Corporation 401(k) Plan 401(k) 364 $93M
20 Cnos, PC 401(k) Profit Sharing Plan 401(k) 321 $87M
21 Empirical 401(k) and Profit Sharing Plan 401(k) 1,191 $84M
22 Rapid City Medical Center 401(k) Plan 401(k) 467 $75M
23 Orthopedic Institute Profit Sharing and Retirement Savings Plan 401(k) 227 $74M
24 Billion Motors, Inc. Salary Deferral 401(k) Pln 401(k) 1,195 $72M
25 Ubg 401(k) - Agtegra 401(k) 895 $69M

Nearby States by Retirement Plan Footprint

States ranked adjacent to South Dakota by total retirement plan assets.

Compare South Dakota side-by-side with 3 peer states →

Nationwide states with similar retirement plan scale

Two DOL Form 5500-derived peer sets for South Dakota, each a different nationwide metric so the neighborhoods are not geographic containment (the asset-ranked nearby list above stays regional).

Similar plan count

Nearest other states by reported employer plan filings (321 here).

Vermont 327 plans North Dakota 359 plans Alaska 275 plans West Virginia 380 plans

Similar total assets

Nearest other states by aggregate plan assets ($8.4B here).

Montana $10.3B Puerto Rico $13.1B Wyoming $1.9B Mississippi $15.9B

Frequently Asked Questions

What is the largest retirement plan headquartered in South Dakota? ▼
The largest Form 5500 filing by assets with a headquarters address in South Dakota is Black Hills Corporation 401(k) Retirement Savings Plan ($811M, 2,881 participants).
Which industry leads South Dakota retirement plan assets? ▼
Healthcare & Social Assistance leads with $1.9B across 60 plans headquartered here (23% of state plan assets).
How does South Dakota compare to other states for retirement plans? ▼
South Dakota is a smaller Form 5500 host by plan assets (#51 of 56). A single large sponsor can move the state total; read the largest-plan share before treating the average as typical.

Next read for South Dakota

Industry-mix reading

Ways to act on South Dakota's numbers.

  • South Dakota ranks 51st nationally by total retirement plan assets. See all state rankings
  • The largest plan headquartered here, Black Hills Corporation 401(k) Retirement Savings Plan, holds $811M. View largest plan
  • Compare South Dakota side-by-side against 3 peer states by assets. Compare states
  • Every figure here comes from a Form 5500 filing, understand what the form covers before drawing conclusions from state totals. How to read a Form 5500

Source: U.S. Department of Labor, EBSA Form 5500 public disclosure dataset. Shows the top 25 plans by total assets headquartered in South Dakota, out of 130,145 ERISA-covered plans nationally. Plan year 2024.

Source: DOL EFAST2 filing system (efast.dol.gov) - state is the plan sponsor's headquarters state as recorded on the Form 5500 filing.

Read our methodology - how this data is sourced, computed, and verified.

Data sourced from U.S. Department of Labor Form 5500 filings (EBSA). See our methodology for details.