Data / Nonprofits / South Dakota / Mutual and membership benefit
Mutual and membership benefit nonprofits in South Dakota: 105 registered with the IRS
105 mutual and membership benefit nonprofits are registered with the IRS in South Dakota, 14 of them 501(c)(3) charities; the 27 that report revenue took in $129.2 million. The most are in Sioux Falls (12), Rapid City (10), Pierre (4). The largest by revenue: Southeastern Electric Cooperative Inc ($96 million), South Dakota Bankers Benefit Plan Trust ($19.8 million), Mni Waste Water Company ($3.5 million).
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Every organization, largest by revenue first
| Organization | City | Type | Since | Revenue | Assets | Filing |
|---|---|---|---|---|---|---|
| Southeastern Electric Cooperative Inc | Lennox | 501(c)(12) | 2000 | $96 million | $274.3 million | 2025-12 |
| South Dakota Bankers Benefit Plan Trust | Pierre | 501(c)(9) | 2016 | $19.8 million | $15.7 million | 2024-12 |
| Mni Waste Water Company | Eagle Butte | 501(c)(12) | 2019 | $3.5 million | $100.2 million | 2025-09 |
| Joint Well Field Inc | Toronto | 501(c)(12) | 2004 | $3.1 million | $19.8 million | 2025-12 |
| Hills of Rest Memorial Park Inc | Sioux Falls | 501(c)(13) | 1986 | $1.4 million | $6.5 million | 2026-01 |
| El Riad Shriners | Sioux Falls | 501(c)(10) | 1940 | $862,324 | $6.3 million | 2024-12 |
| Black Hills Utility Holdings Inc Funded Retiree Healthcare PL Non B | Rapid City | 501(c)(9) | 2010 | $698,158 | $6 million | 2024-12 |
| Yeldez Shriners | Aberdeen | 501(c)(10) | 1940 | $690,272 | $3.1 million | 2024-12 |
| Brookings Convention & Visitors Bureau | Brookings | 501(c)(6) | 2020 | $600,330 | $476,633 | 2024-12 |
| Corn Palace City Post 2750 Veterans of Foreign Wars of the United | Mitchell | 501(c)(19) | 2016 | $559,827 | $1.1 million | 2025-12 |
| Fraternal Order of Eagles | Rapid City | 501(c)(8) | 1991 | $323,959 | $695,745 | 2025-05 |
| Pine Lawn Memorial Park Incorporated | Rapid City | 501(c)(13) | 2026 | $253,371 | $408,641 | 2026-05 |
| Black Hills Utility Holdings Inc Funded Retiree Healthcare PL Barg | Rapid City | 501(c)(9) | 2010 | $223,807 | $1.5 million | 2024-12 |
| Mobridge Moose Lodge 1685 Loyal Order of Moose | Mobridge | 501(c)(4) | 2024 | $155,653 | $377,798 | 2025-04 |
| Yelduz Shriners Group Return | Aberdeen | 501(c)(10) | 1940 | $138,531 | $224,790 | 2024-12 |
| Knights of Columbus | Watertown | 501(c)(8) | 1940 | $135,213 | $136,487 | 2025-12 |
| Valley Telecommunicationscooperative Association Inc Veba Trust | Sioux Falls | 501(c)(9) | 2008 | $134,985 | $1.2 million | 2025-12 |
| Hamsters USA Inc | Rapid City | 501(c)(7) | 2014 | $133,874 | $152,324 | 2025-12 |
| Mount Pleasant Cemetery Association of Sioux Falls | Sioux Falls | 501(c)(13) | 2026 | $102,935 | $300,324 | 2025-12 |
| Veterans Honored Interment | Brandon | 501(c)(3) | 2001 | $90,355 | $223,134 | 2025-12 |
| Northville Baseball Association Inc | Northville | 501(c)(3) | 2014 | $87,525 | $60,020 | 2024-12 |
| Sunshine State Chapter No 190 Order of Ahepa | Sioux Falls | 501(c)(10) | 2025 | $70,232 | $464,086 | 2025-12 |
| Greenwood Cemetery Asociation | Brookings | 501(c)(13) | 2022 | $61,864 | $670,462 | 2025-12 |
| Butler Cemetery | Letcher | 501(c)(13) | 1999 | $54,666 | $191,649 | 2025-12 |
| Voluntary Employees Beneficiary Association | Watertown | 501(c)(9) | 1996 | $18,693 | $54,917 | 2023-12 |
| Elk Point Lodge No 3 Af & Am of Elk Point South Dakota | Elk Point | 501(c)(10) | 2014 | $9,684 | $250,272 | 2024-12 |
| Scotland Cemetery Inc | Frederick | 501(c)(13) | 2016 | $8,085 | $91,270 | 2025-12 |
| Abbot Gilbert Hess Council No 1720 Knights of Columbus | Milbank | 501(c)(8) | 2021 | $0 | $0 | 2025-12 |
| Aberdeen Lodge 4 Fraternal Order of Police | Aberdeen | 501(c)(8) | 2022 | $0 | $0 | 2025-12 |
| American Legion | Bowdle | 501(c)(19) | 1946 | $0 | $0 | 2025-12 |
| Ancient Free & Accepted Masons of South Dakota Benevolent Lodge 98 | Britton | 501(c)(10) | 2014 | $0 | $0 | 2025-12 |
| Beaver Creek Cemetary Association | Valley SPGS | 501(c)(3) | 2025 | $0 | $0 | 2025-12 |
| Bethany Cemetery Association Inc | Hosmer | 501(c)(13) | 2012 | $0 | $0 | 2025-12 |
| Black Hill Council No 703 Knights of Columbus | Lead | 501(c)(8) | 2013 | $0 | $0 | 2025-12 |
| Bohemian National Cemetary Association | Highmore | 501(c)(13) | 1999 | $0 | $0 | 2025-12 |
| Boyd Cemetery Association | Rapid City | 501(c)(13) | 2002 | $0 | $0 | 2025-12 |
| Calvary Cemetery of Mellette | Mellette | 501(c)(3) | 2025 | $0 | $0 | 2025-12 |
| Cancer Registrars Association of the Dakotas | Sioux Falls | 501(c)(6) | 2023 | $0 | $0 | 2025-12 |
| Castlewood Cemetery Association | Castlewood | 501(c)(13) | 2013 | $0 | $0 | 2025-12 |
| Colman Cemetery Association Incorporated | Colman | 501(c)(13) | 2023 | $0 | $0 | 2025-12 |
| Combat Veterans Motorcycle Association | Black Hawk | 501(c)(3) | 2018 | $0 | $0 | 2025-06 |
| Dalesburg Lutheran Cemetary Inc | Centerville | 501(c)(13) | 2004 | $0 | $0 | 2025-12 |
| De Smet Cemetery Association | De Smet | 501(c)(13) | 2014 | $0 | $0 | 2025-12 |
| Dexter Cemetery Association Inc | Waubay | 501(c)(13) | 2018 | $0 | $0 | 2026-05 |
| East Rondell Cemetery Association | Stratford | 501(c)(13) | 2012 | $0 | $0 | 2025-12 |
| Elmwood Cemetery Inc | Jefferson | 501(c)(13) | 2015 | $0 | $0 | 2025-12 |
| Faith Cemetery Association | New Effington | 501(c)(13) | 2012 | $0 | $0 | 2025-12 |
| Father Robert L Flannery Assembly | Mitchell | 501(c)(8) | 2014 | $0 | $0 | 2025-06 |
| Fenimore Council No 249 the Order of United Commercial Travelers of | Mitchell | 501(c)(8) | 1940 | $0 | $0 | 2023-12 |
| Fraternal Order of Police | Brookings | 501(c)(8) | 1952 | $0 | $0 | 2024-12 |
| Fraternal Order of Police- Hamlin C Ounty Area | Lake Norden | 501(c)(8) | 1952 | |||
| Gettysburg Cemetery Association | Gettysburg | 501(c)(13) | 2007 | $0 | $0 | 2025-12 |
| Harmony Lodge 110 Af & Am | Hot Springs | 501(c)(10) | 2019 | $0 | $0 | 2025-12 |
| Highland Lutheran Cemetary Inc | Brandt | 501(c)(13) | 2013 | $0 | $0 | 2025-12 |
| Highland Park Cemetery Association of Hermosa | Hermosa | 501(c)(13) | 2013 | $0 | $0 | 2025-12 |
| Hillview Cemetery | Isabel | 501(c)(13) | 2025 | $0 | $0 | 2025-12 |
| Holy Trinity Cemetery Inc | Ethan | 501(c)(13) | 1999 | $0 | $0 | 2025-12 |
| Interior Fairview Cemetery Corporation | Interior | 501(c)(13) | 2020 | $0 | $0 | 2025-04 |
| International Harvester Collectors Chapter 21 of South Dakota Inc | Hartford | 501(c)(3) | 2016 | $0 | $0 | 2025-12 |
| Iona Cemetery Association | Gregory | 501(c)(13) | 1999 | $0 | $0 | 2024-12 |
| Knights Templar of the United States of America | Pierre | 501(c)(10) | 1964 | $0 | $0 | 2025-12 |
| Knights Templar of the United States of America | Spearfish | 501(c)(10) | 1964 | $0 | $0 | 2025-12 |
| Knights of Columbus | Mobridge | 501(c)(8) | 2014 | $0 | $0 | 2025-12 |
| Knights of Columbus | Madison | 501(c)(8) | 1940 | $0 | $0 | 2025-12 |
| Knights of Columbus | Winner | 501(c)(8) | 1940 | $0 | $0 | 2025-12 |
| Knights of Columbus | Woonsocket | 501(c)(8) | 2022 | $0 | $0 | 2025-12 |
| Knights of Columbus Council 6668 | Ramona | 501(c)(8) | 2014 | $0 | $0 | 2025-12 |
| Knittel Cemetery Corporation | Sioux Falls | 501(c)(13) | 2022 | $0 | $0 | 2025-12 |
| Lakeview Water Cooperative | Rapid City | 501(c)(12) | 2012 | $0 | $0 | 2025-12 |
| Lennox Cemetry | Lennox | 501(c)(13) | 2015 | $0 | $0 | 2024-12 |
| Lucas Cemetery Association | Burke | 501(c)(13) | 2019 | $0 | $0 | 2025-12 |
| Madison Lodge 5 Fraternal Order of Police | Madison | 501(c)(8) | 2026 | |||
| Marty Assembly No 1080 Fourth Degree Knights of Columbus | Yankton | 501(c)(8) | 2025 | $0 | $0 | 2025-12 |
| Masonic Cemetery Association | Philip | 501(c)(13) | 2020 | $0 | $0 | 2024-12 |
| National Society of the Daughters of the American Revolution | Rapid City | 501(c)(3) | 1949 | $0 | $0 | 2025-12 |
| Nemo Cemetery Association | Nemo | 501(c)(13) | 2019 | $0 | $0 | 2024-12 |
| New Effington Cemetery Association Inc | Rosholt | 501(c)(3) | 2025 | $0 | $0 | 2025-12 |
| New Home Lutheran Cemetery | Mitchell | 501(c)(13) | 2016 | $0 | $0 | 2025-12 |
| North Central Society for Post- Acute and Long Term Care Medicine | Sioux Falls | 501(c)(6) | 2014 | $0 | $0 | 2025-12 |
| Oahe General Assembly 1657 | Pierre | 501(c)(8) | 2019 | $0 | $0 | 2026-06 |
| Onida Cemetery Association | Onida | 501(c)(13) | 2026 | |||
| Order of the Eastern Star of South Dakota | Hot Springs | 501(c)(10) | 1992 | $0 | $0 | 2025-12 |
| Pleasant Ridge Cemetery Corporation | Armour | 501(c)(13) | 2021 | $0 | $0 | 2025-12 |
| Quinn Cemetery Association | Creighton | 501(c)(13) | 2012 | $0 | $0 | 2024-12 |
| Riverview Cemetery Association of Pickstown SD | Pickstown | 501(c)(13) | 2017 | $0 | $0 | 2026-06 |
| Saint Johns Lutheran Church Cemetery Association | Columbia | 501(c)(3) | 2008 | |||
| Sdsu Investment Club | Brookings | 501(c)(7) | 2015 | $0 | $0 | 2025-06 |
| Shirley J Weismantel Memorialcemetery Fund | Aberdeen | 501(c)(3) | 2008 | $106,920 | 2025-12 | |
| Silver Creek Cemetery Association Incoporate | Woonsocket | 501(c)(13) | 2016 | $0 | $0 | 2025-09 |
| Sioux Land Lions Club Inc | Sioux Falls | 501(c)(4) | 2018 | $0 | $0 | 2025-06 |
| Sisseton Cemetery Association | Sisseton | 501(c)(13) | 2011 | $0 | $0 | 2025-12 |
| South Dakota Elks Association | Pierre | 501(c)(8) | 2015 | $0 | $0 | 2026-03 |
| South Savo Cemetery Association | Frederick | 501(c)(13) | 2002 | $0 | $0 | 2025-12 |
| St Katharine Drexel Council No 16017 Knights of Columbus | Sioux Falls | 501(c)(8) | 2019 | $0 | $0 | 2025-12 |
| St Marks Knights of Columbus Council Number 5695 | Pickstown | 501(c)(8) | 2014 | $0 | $0 | 2025-12 |
| St Williams Cemetery Association | Volga | 501(c)(13) | 2023 | $0 | $0 | 2025-12 |
| Stone Face Fools | Rapid City | 501(c)(3) | 2024 | $6,963 | 2024-12 | |
| Sturgis Police Reserve Association | Sturgis | 501(c)(3) | 2014 | $0 | $0 | 2024-12 |
| Summit Hill Cemetery Association | Sioux Falls | 501(c)(13) | 2013 | $0 | $0 | 2025-03 |
| Taopi and Hartford Masonic Lodge | Colton | 501(c)(3) | 2025 | $0 | $0 | 2025-12 |
| The Grand Chapter of SD Widows Sons | Rapid City | 501(c)(10) | 2017 | $0 | $0 | 2025-06 |
| Trinity Lutheran Cemetery Association | Lake Norden | 501(c)(13) | 2014 | $0 | $0 | 2025-12 |
| Walton-Schuler Ditch Company | Spearfish | 501(c)(12) | 2013 | $0 | $0 | 2024-12 |
| Women of the Armed Forces | Sioux Falls | 501(c)(3) | 2022 | $0 | $0 | 2025-12 |
| Zoar Cemetery Corporation of Rural Grenville | Waubay | 501(c)(13) | 2024 | $0 | $0 | 2025-12 |
Every nonprofit in South Dakota
Read from the IRS Exempt Organizations Business Master File, updated by the IRS on October 24, 2026 and rebuilt here every morning. Revenue and assets are from each organization's latest filing as the IRS lists it; the IRS record is the official one. Organizations only: no people are named on these pages.