Data / Nonprofits / South Dakota / Environment
Environment nonprofits in South Dakota: 104 registered with the IRS
104 environment nonprofits are registered with the IRS in South Dakota, 100 of them 501(c)(3) charities; the 28 that report revenue took in $17.7 million. The most are in Rapid City (15), Sioux Falls (15), Pierre (6). The largest by revenue: South Dakota High School Activities Association ($3.8 million), Red Cloud Renewable ($2.1 million), South Dakota Association of Conservations Districts Inc ($1.7 million).
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Every organization, largest by revenue first
| Organization | City | Type | Since | Revenue | Assets | Filing |
|---|---|---|---|---|---|---|
| South Dakota High School Activities Association | Pierre | 501(c)(3) | 2023 | $3.8 million | $2.5 million | 2025-06 |
| Red Cloud Renewable | Pine Ridge | 501(c)(3) | 2017 | $2.1 million | $2.2 million | 2025-12 |
| South Dakota Association of Conservations Districts Inc | Pierre | 501(c)(3) | 1969 | $1.7 million | $1.2 million | 2025-06 |
| Belle Fourche River Watershed Partnership | Belle Fourche | 501(c)(3) | 2001 | $1.6 million | $8,648 | 2025-12 |
| Buffalo Nations Grasslands Alliance | Lower Brule | 501(c)(3) | 2021 | $1.3 million | $1.6 million | 2025-12 |
| South Dakota Soil Health Coalition | Pierre | 501(c)(3) | 2018 | $1.2 million | $164,697 | 2025-12 |
| Tri County Landfill Association Inc | Pukwana | 501(c)(3) | 1993 | $1.1 million | $3.8 million | 2024-12 |
| Big Sioux Nursery Inc | Watertown | 501(c)(3) | 1997 | $863,656 | $2 million | 2025-12 |
| The Second Century Habitat Fund Inc | Pierre | 501(c)(3) | 2017 | $619,463 | $379,380 | 2024-12 |
| Northern Prairies Land Trust | Sioux Falls | 501(c)(3) | 2000 | $595,730 | $500,766 | 2025-08 |
| Great Plains Tribal Water Allianceinc | Pine Ridge | 501(c)(3) | 2025 | $572,513 | $508,396 | 2024-12 |
| Northwest South Dakota Regional Landfill Association Inc | Lemmon | 501(c)(3) | 1997 | $434,373 | $1.7 million | 2024-12 |
| South Dakota Agricultural Land Trust | Pierre | 501(c)(3) | 2020 | $266,593 | $155,777 | 2025-06 |
| Clean Water Legacy | Rapid City | 501(c)(3) | 2015 | $248,102 | $104,757 | 2025-12 |
| Friends of the Big Sioux River | Sioux Falls | 501(c)(3) | 2015 | $186,258 | $201,961 | 2025-12 |
| Farwide Conservation Inc | Hecla | 501(c)(3) | 2022 | $157,751 | $109,113 | 2025-12 |
| Badlands National Park Conservancy | Rapid City | 501(c)(3) | 2018 | $149,803 | $206,747 | 2024-12 |
| Pickerel Lake Conservancy | Sioux Falls | 501(c)(3) | 2013 | $140,844 | $431,700 | 2024-12 |
| Crooks Conservation & Gun Club Inc | Sioux Falls | 501(c)(4) | 2021 | $130,966 | $300,661 | 2025-09 |
| McCook Lake Recreation Area Association | McCook Lake | 501(c)(3) | 2010 | $129,987 | $342,419 | 2026-02 |
| Vore Buffalo Jump Foundation | Belle Fourche | 501(c)(3) | 2010 | $104,035 | $379,621 | 2024-12 |
| Habitat One | Spearfish | 501(c)(3) | 2025 | $76,135 | $58,487 | 2025-12 |
| McCook Lake Izaak Walton League | N Sioux City | 501(c)(3) | 1998 | $46,464 | $2.8 million | 2025-12 |
| Rural Water Center Inc | Madison | 501(c)(3) | 2014 | $34,423 | $89,986 | 2025-09 |
| Black Hills Cave and Nature Conservancy | Rapid City | 501(c)(3) | 2020 | $33,504 | $228,951 | 2025-12 |
| Missouri Sedimentation Acton Coalition Inc | Springfield | 501(c)(3) | 2005 | $23,673 | $12,927 | 2025-12 |
| 29-90 Sportsmans Club | Sioux Falls | 501(c)(3) | 2001 | $7,582 | $25,939 | 2025-12 |
| Enemy Swim Preservation Association | Webster | 501(c)(3) | 2022 | $1,600 | $12,859 | 2025-12 |
| A Heart for the Parks | Hill City | 501(c)(3) | 2026 | |||
| Association of National Grasslands Inc | Philip | 501(c)(4) | 2012 | $0 | $0 | 2025-09 |
| Badlands Resource Conservation and Development Area Council Inc | Cody Lake TWP | 501(c)(3) | 1994 | $0 | $0 | 2025-12 |
| Bear Butte Creek Historical Preservation Council | Sturgis | 501(c)(3) | 2020 | $0 | $0 | 2025-05 |
| Beautify Spearfish | Spearfish | 501(c)(3) | 2021 | $0 | $0 | 2025-12 |
| Black Hills 4 Wheelers | Rapid City | 501(c)(3) | 2020 | $0 | $0 | 2024-12 |
| Black Hills Flyfishers | Rapid City | 501(c)(3) | 2002 | $0 | $0 | 2024-12 |
| Black Hills Jeeps | Rapid City | 501(c)(3) | 2018 | $0 | $0 | 2025-12 |
| Brownotter Conservancy Inc | Timber Lake | 501(c)(3) | 2026 | |||
| Building Sustainable Connections | Sioux Falls | 501(c)(3) | 2022 | $0 | $0 | 2026-03 |
| Burke Lake Restoration Committee Inc | Burke | 501(c)(3) | 2022 | $0 | $0 | 2025-12 |
| Central Rockies Sustainable Forestry Education Program | Rapid City | 501(c)(3) | 2003 | $0 | $0 | 2024-12 |
| Charles Mix County Lake Restoration Organization | Lake Andes | 501(c)(3) | 2008 | $0 | $0 | 2025-12 |
| Citizens Against Missouri River Pumped Storage Project Inc | Burke | 501(c)(3) | 2022 | $0 | $0 | 2025-12 |
| Conata Conservation Trust | Scenic | 501(c)(3) | 2017 | $5.4 million | 2024-12 | |
| Conserve With Crayons | Brookings | 501(c)(3) | 2026 | |||
| Dakotas Chapter - International Society of Arboriculture | Aberdeen | 501(c)(3) | 2020 | $0 | $0 | 2025-09 |
| Defenders of the Black Hills Inc | Rapid City | 501(c)(3) | 2005 | $0 | $0 | 2025-12 |
| Festival of Lights Parade Inc | Rapid City | 501(c)(3) | 2023 | $0 | $0 | 2025-12 |
| Five Percent Pledge | Brookings | 501(c)(3) | 2026 | |||
| Friends of Gavins Point National Fish Hatchery Inc | Yankton | 501(c)(3) | 2007 | $0 | $0 | 2024-12 |
| Friends of Prentis Forest Inc | Vermillion | 501(c)(3) | 2026 | |||
| Friends of the Firesteel Inc | Mitchell | 501(c)(3) | 2020 | $0 | $0 | 2025-12 |
| Friends of the Missouri National Recreational River | Yankton | 501(c)(3) | 2015 | $0 | $0 | 2025-09 |
| Friends of the Paha Sapa Grotto | Custer | 501(c)(3) | 2019 | $0 | $0 | 2024-12 |
| Great Plains Climbing Coalition | Sioux Falls | 501(c)(3) | 2022 | $0 | $0 | 2026-05 |
| Greening Vermillion | Vermillion | 501(c)(3) | 2014 | $0 | $0 | 2025-12 |
| Grossnet | Sioux Falls | 501(c)(3) | 2025 | |||
| Hill City Evergreen Garden Club | Hill City | 501(c)(3) | 2014 | $0 | $0 | 2025-12 |
| Ida South Dakota Inc | Sioux Falls | 501(c)(3) | 2021 | $0 | $0 | 2025-12 |
| Ironfox Farm | Sioux Falls | 501(c)(3) | 2022 | $0 | $0 | 2026-01 |
| Izaak Walton League of Amercia Inc | Madison | 501(c)(3) | 1985 | $0 | $0 | 2025-08 |
| Keep Hot Springs Beautiful | Hot Springs | 501(c)(3) | 2008 | $0 | $0 | 2026-07 |
| Keep Yankton Beautiful Inc | Yankton | 501(c)(3) | 2001 | $0 | $0 | 2024-12 |
| Lake Campbell Improvement Assosciat Ion | Brookings | 501(c)(3) | 2026 | $0 | $0 | 2025-05 |
| Lake Herman Development Assoc Inc | Madison | 501(c)(3) | 2016 | $0 | $0 | 2026-05 |
| Lakota Women Initiative | Parmelee | 501(c)(3) | 2024 | $0 | $0 | 2025-12 |
| Lead City Beautification | Lead | 501(c)(3) | 2023 | $0 | $0 | 2024-12 |
| Little Spearfish Conservation & Historic Preservation Assoc | Rapid City | 501(c)(3) | 1998 | $0 | $0 | 2025-06 |
| Mansfield Community Betterment Association | Mansfield | 501(c)(3) | 2008 | $0 | $0 | 2025-12 |
| Mid Missouri River Prescribed Burn Association | Gregory | 501(c)(3) | 2017 | $0 | $0 | 2025-12 |
| Minnehaha Master Gardeners | Sioux Falls | 501(c)(3) | 2023 | $0 | $0 | 2025-12 |
| Mothers Healing Garden | Dell Rapids | 501(c)(3) | 2014 | $0 | $0 | 2025-12 |
| Nature Partners Foundation | Hot Springs | 501(c)(3) | 2024 | $0 | $0 | 2025-03 |
| Norbeck Society | Rapid City | 501(c)(3) | 2006 | $0 | $0 | 2025-12 |
| North Central Resource Conservation and Developement Association Inc | Pierre | 501(c)(3) | 1981 | $0 | $0 | 2024-09 |
| Operation Butterfly | Harrold | 501(c)(3) | 2023 | $0 | $0 | 2024-04 |
| Pennington County Master Gardeners Inc | Rapid City | 501(c)(3) | 2014 | $0 | $0 | 2025-12 |
| Prairie Hills Audubon Society of Western South Dakota Inc | Black Hawk | 501(c)(3) | 2021 | $0 | $0 | 2025-06 |
| Preserve French Creek Inc | Custer | 501(c)(3) | 2023 | $4,794 | 2025-12 | |
| Punished Woman Lake Association | South Shore | 501(c)(3) | 2022 | $0 | $0 | 2025-12 |
| Quality of Life for South Dakota | Mission Hill | 501(c)(3) | 2019 | $0 | $0 | 2025-12 |
| Randall Resource Conservation and Development Association Incorporat | Pickstown | 501(c)(3) | 1987 | $0 | $0 | 2025-09 |
| Rapid City Garden Club | Rapid City | 501(c)(3) | 1996 | $0 | $0 | 2025-12 |
| Rapid Creek Preservation Association Inc | Rapid City | 501(c)(3) | 2018 | $0 | $0 | 2025-12 |
| Recycle605 | Vermillion | 501(c)(3) | 2018 | $0 | $0 | 2025-12 |
| Sawyer Memorial Park Trust Inc | Deadwood | 501(c)(3) | 2000 | $0 | $0 | 2025-12 |
| Scotland Lake Henry Association | Scotland | 501(c)(3) | 1995 | $0 | $0 | 2024-12 |
| Seed Testing Research Foundation | Brookings | 501(c)(3) | 2014 | $0 | $0 | 2025-12 |
| Silver Lake Association | Bridgewater | 501(c)(3) | 2024 | |||
| Sioux Empire Gem & Mineral Society | Canton | 501(c)(7) | 2008 | $0 | $0 | 2025-12 |
| Sodak Compost | Sioux Falls | 501(c)(3) | 2024 | $0 | $0 | 2025-12 |
| Solutions for Resilient Communities Inc | Spearfish | 501(c)(3) | 2026 | $0 | $0 | 2026-03 |
| South Central Missouri River Prescribed Burn Association | Plankinton | 501(c)(3) | 2026 | |||
| South Central Resource Conservation and Development | Murdo | 501(c)(3) | 1993 | $0 | $0 | 2025-09 |
| South Dakota Envirothon Program Inc | Belle Fourche | 501(c)(3) | 2022 | $0 | $0 | 2025-06 |
| South Dakota Family Forests Association | Rapid City | 501(c)(3) | 1974 | $0 | $0 | 2024-12 |
| South Dakota Lakes & Streams | Sioux Falls | 501(c)(3) | 1994 | $0 | $0 | 2025-12 |
| South Dakota Project Learning Tree Inc | Spearfish | 501(c)(3) | 2006 | $0 | $0 | 2025-12 |
| Southeast Dakota Prescribed Burn Association | Yankton | 501(c)(3) | 2024 | $0 | $6,368 | 2025-12 |
| Swan Lake Improvement Association | Elkton | 501(c)(3) | 1995 | $0 | $0 | 2025-12 |
| Teen Lead Foundation | Sioux Falls | 501(c)(3) | 2025 | |||
| Tripp County Rangeland Association | White River | 501(c)(3) | 2026 | |||
| Vermillion Community Garden Inc | Vermillion | 501(c)(3) | 2018 | $0 | $0 | 2025-12 |
| Water Is Life Corporation | Sioux Falls | 501(c)(3) | 2025 | |||
| Wind Energy-Concerns About Rural Environment | Canton | 501(c)(4) | 2014 | $0 | $0 | 2024-12 |
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.