Unknown & Unclassified nonprofits in South Dakota
Unknown & Unclassified nonprofits in South Dakota. Browse 2,816 public nonprofit profiles. Review organization identities, available filing years, and their complete CharitySense profiles.
Location refers to headquarters recorded in public sources, not an organization’s service area. Classification describes its reported category and does not assess its effectiveness.
Nonprofit profiles
- Rotary International
EIN 460398885 · Headquarters: Clark, SD, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N
- Rotary International
EIN 460409797 · Headquarters: Sioux Falls, SD, US · Unknown & Unclassified · Latest available filing year: 2019 · Primary form: IRS Form 990-N
- Rotary International
EIN 466014748 · Headquarters: Canton, SD, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N
- Rotary International
EIN 466014749 · Headquarters: Mobridge, SD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Rotary International
EIN 466014751 · Headquarters: Winner, SD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Rotary International
EIN 466014970 · Headquarters: Scotland, SD, US · Unknown & Unclassified · Latest available filing year: 2019 · Primary form: IRS Form 990-N
- Rotary International
EIN 466015070 · Headquarters: Pierre, SD, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N
- Rotary International
EIN 466015631 · Headquarters: Madison, SD, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N
- Rotary International
EIN 466016439 · Headquarters: RAPID CITY, SD, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ
- Rotary International
EIN 466019803 · Headquarters: Centerville, SD, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N
- Rotary International
EIN 466019804 · Headquarters: Custer, SD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Rotary International
EIN 932571377 · Headquarters: STURGIS, SD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Rotary International Sf Club D/b/a the Downtown Rotary Club of Sf
EIN 460183635 · Headquarters: SIOUX FALLS, SD, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ
- Royal & Select Masters Alpha 1
EIN 466012232 · Headquarters: Sioux Falls, SD, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N
- Royal Arch Masons Sioux Falls-2
EIN 460235524 · Headquarters: Sioux Falls, SD, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N
- Royal Order of Jesters
EIN 237151585 · Headquarters: Langford, SD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Royal Order of Jesters
EIN 237159365 · Headquarters: Spearfish, SD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Royal Order of Jesters # 114
EIN 237159364 · Headquarters: SIOUX FALLS, SD, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ
- Rtc Inc
EIN 411645062 · Headquarters: HARTFORD, SD, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N
- Running T Homeowners Association
EIN 922325504 · Headquarters: Sturgis, SD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Rural Ethnic Institute
EIN 460340843 · Headquarters: Rapid City, SD, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ
- Rural Office of Community Services
EIN 460365648 · Headquarters: WAGNER, SD, USA · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990
- Rushmore Electric Power Coop
EIN 460226551 · Headquarters: RAPID CITY, SD, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990
- Rushmore Moose Legion No 39
EIN 460393036 · Headquarters: Fort Pierre, SD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Rushmore Winnies
EIN 261320811 · Headquarters: Rapid City, SD, US · Unknown & Unclassified · Latest available filing year: 2017 · Primary form: IRS Form 990-N
- Safari Club International Sioux Empire Chapter
EIN 460462084 · Headquarters: SIOUX FALLS, SD, USA · Unknown & Unclassified · Latest available filing year: 2021 · Primary form: IRS Form 990-EZ
- Safe Harbor
EIN 460344310 · Headquarters: Aberdeen, SD, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990
- Sage-n-cactus 4-H Club of South Dakota
EIN 352864869 · Headquarters: Newell, SD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Saint Anns Shrine & Cemetery Association
EIN 460305153 · Headquarters: Ramona, SD, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N
- Salem Youth Activities Corporation
EIN 237010357 · Headquarters: Salem, SD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Sales & Marketing Executives Inc of Sioux Falls
EIN 466012934 · Headquarters: SIOUX FALLS, SD, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990
- Salon National Laboutique Des Huit Chapeaux Et Quanante Femmes
EIN 460425788 · Headquarters: CHAMBERLAIN, SD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Sam Post Branch 1225
EIN 466014946 · Headquarters: Rapid City, SD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Sanborn County Democratic Party
EIN 821596833 · Headquarters: WOONSOCKET, SD, US · Unknown & Unclassified · Latest available filing year: 2019 · Primary form: IRS Form 990-N
- Sanborn Interactive Video Network Inc
EIN 460441197 · Headquarters: Mitchell, SD, US · Unknown & Unclassified · Latest available filing year: 2019 · Primary form: IRS Form 990-N
- Sandstone Singers
EIN 261360429 · Headquarters: HOT SPRINGS, SD, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N
- Sanford Health
EIN 453791176 · Headquarters: Sioux Falls, SD, United States · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990
- Sanford School of Medicine of the University of South Dakota Residency Cor
EIN 460418678 · Headquarters: SIOUX FALLS, SD, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990
- Sansarc Cemetery Association
EIN 270207015 · Headquarters: Hayes, SD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Scandinavian Farm Mutual Insurance
EIN 466011662 · Headquarters: LANGFORD, SD, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990
- Scattered 4-H Club of Union County of South Dakota
EIN 882074973 · Headquarters: Elk Point, SD, US · Unknown & Unclassified · Latest available filing year: 2021 · Primary form: IRS Form 990-N
- Schock Foundation
EIN 466012429 · Headquarters: Sioux Falls, SD, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-PF
- Schoenhard Community Foundation Inc
EIN 363901212 · Headquarters: CHAMBERLAIN, SD, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-PF
- School Administrators of South Dakota
EIN 237101338 · Headquarters: PIERRE, SD, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990
- Schoolhouse Daycare
EIN 460647289 · Headquarters: VEBLEN, SD, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ
- Scotland Area Development Corp
EIN 460321676 · Headquarters: Scotland, SD, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N
- Scotland Historical Society
EIN 460338189 · Headquarters: Scotland, SD, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N
- Scotland South Dakota Ebenezer Cemetery Inc
EIN 460389820 · Headquarters: Scotland, SD, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N
- Scouting America Sioux Council
EIN 460224599 · Headquarters: Sioux Falls, South Dakota, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990
- Sd Academy of Family Physicians
EIN 461258404 · Headquarters: WATERTOWN, SD, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990
- Sd American Legion Dist 12
EIN 262385971 · Headquarters: Spearfish, SD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Sd Assoc of Addiction & Prevention Professionals
EIN 460341102 · Headquarters: Blunt, SD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Sd Association of Healthcare Organizations
EIN 460254666 · Headquarters: SIOUX FALLS, SD, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990
- Sd Chapt of the Am Soc of Farm Managers and Rural Appraisers Inc
EIN 270285029 · Headquarters: Sioux Falls, SD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Sd Deca
EIN 466017083 · Headquarters: PIERRE, SD, US · Unknown & Unclassified · Latest available filing year: 2018 · Primary form: IRS Form 990-N
- Sd Licensed Beverage Dealers and Gaming Association
EIN 460215438 · Headquarters: PIERRE, SD, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ
- Sd Ne Purple Loosestrife Management Project Inc
EIN 421568579 · Headquarters: YANKTON, SD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Sd Simmental Association
EIN 822472263 · Headquarters: Volga, SD, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ
- Sd Tax Day Tea Party
EIN 271778181 · Headquarters: Sioux Falls, SD, US · Unknown & Unclassified · Latest available filing year: 2019 · Primary form: IRS Form 990-N
- Sd Unit 162 Acbl
EIN 460337989 · Headquarters: Sioux Falls, SD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Sdng Walleye Tourney
EIN 474261729 · Headquarters: Black Hawk, SD, US · Unknown & Unclassified · Latest available filing year: 2020 · Primary form: IRS Form 990-N
- Sdsu Chapter of American Association of University Prof
EIN 202924245 · Headquarters: Nunda, SD, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N
- Second Circuit Bar Association
EIN 460412611 · Headquarters: Sioux Falls, SD, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N
- Selby Community Golf Club Inc
EIN 460306690 · Headquarters: SELBY, SD, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ
- Selfspiration Inc
EIN 460705697 · Headquarters: Sioux Falls, SD, US · Unknown & Unclassified · Latest available filing year: 2017 · Primary form: IRS Form 990-N
- Sending Out Love Charitable Trust
EIN 453729830 · Headquarters: Sturgis, SD, USA · Unknown & Unclassified · Latest available filing year: 2016 · Primary form: IRS Form 990-PF
- Senior Citizen Center
EIN 800184071 · Headquarters: Elk Point, SD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Senior Companion Fund
EIN 460379180 · Headquarters: Sioux Falls, SD, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990
- Serra International
EIN 460428609 · Headquarters: Sioux Falls, SD, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N
- Serra International
EIN 460457701 · Headquarters: WATERTOWN, SD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Servicemens Memorial Cemetery Association
EIN 237279934 · Headquarters: Mitchell, SD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Seventh District Medical Society
EIN 466016102 · Headquarters: SIOUX FALLS, SD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Sexual Assault Response Team Community Response Team
EIN 463415897 · Headquarters: YANKTON, SD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Sheldon F Reese Foundation
EIN 460358682 · Headquarters: SIOUX FALLS, SD, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-PF
- Shirts & Skirts Square Dance Club
EIN 472683920 · Headquarters: Sioux Falls, SD, US · Unknown & Unclassified · Latest available filing year: 2017 · Primary form: IRS Form 990-N
- Short Grass Arts Council Inc
EIN 237449002 · Headquarters: Pierre, SD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Shriner's International
EIN 510213898 · Headquarters: RAPID CITY, SD, USA · Unknown & Unclassified · Latest available filing year: 2022 · Primary form: IRS Form 990
- Shriners International
EIN 237324917 · Headquarters: Sioux Falls, SD, US · Unknown & Unclassified · Latest available filing year: 2012 · Primary form: IRS Form 990-N
- Shriners International
EIN 237324918 · Headquarters: Sioux Falls, SD, US · Unknown & Unclassified · Latest available filing year: 2012 · Primary form: IRS Form 990-N
- Shriners International
EIN 237324921 · Headquarters: Sioux Falls, SD, US · Unknown & Unclassified · Latest available filing year: 2012 · Primary form: IRS Form 990-N
- Shriners International
EIN 237324922 · Headquarters: Sioux Falls, SD, US · Unknown & Unclassified · Latest available filing year: 2012 · Primary form: IRS Form 990-N
- Shriners International
EIN 320381149 · Headquarters: Sioux Falls, SD, US · Unknown & Unclassified · Latest available filing year: 2012 · Primary form: IRS Form 990-N
- Shriners International
EIN 460168705 · Headquarters: RAPID CITY, SD, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990
- Shriners International
EIN 460308989 · Headquarters: RAPID CITY, SD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Shriners International
EIN 466037948 · Headquarters: RAPID CITY, SD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Shriners International
EIN 466039661 · Headquarters: Sioux Falls, SD, US · Unknown & Unclassified · Latest available filing year: 2012 · Primary form: IRS Form 990-N
- Shriners International
EIN 901257781 · Headquarters: HARRISBURG, SD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Shriners International Deadmans Hand Taproom 21
EIN 320810499 · Headquarters: RAPID CITY, SD, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N
- Sigma Alpha Epsilon Fraternity
EIN 237134026 · Headquarters: Sioux Falls, SD, US · Unknown & Unclassified · Latest available filing year: 2022 · Primary form: IRS Form 990-N
- Sigma Delta Epsilon Graduate Womens Scientific Frat
EIN 800666145 · Headquarters: Sioux Falls, SD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Sigma Phi Alpha Dental Hygiene Honor Society
EIN 460353495 · Headquarters: Vermillion, SD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Sigma Tau Gamma Fraternity Lambda Chapter
EIN 475430646 · Headquarters: SPEARFISH, SD, US · Unknown & Unclassified · Latest available filing year: 2022 · Primary form: IRS Form 990-N
- Sigma Theta Tau Inc
EIN 311042693 · Headquarters: Sioux Falls, SD, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N
- Sigma Theta Tau Inc
EIN 466017299 · Headquarters: Brookings, SD, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N
- Sigma Theta Tau International Inc
EIN 900012737 · Headquarters: Aberdeen, SD, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N
- Silver City Volunteer Fire Department
EIN 460376207 · Headquarters: SILVER CITY, SD, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N
- Silver Ridge Cemetery
EIN 363770368 · Headquarters: stickney, SD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Singing Boys of Sioux Falls
EIN 460389502 · Headquarters: Sioux Falls, SD, US · Unknown & Unclassified · Latest available filing year: 2022 · Primary form: IRS Form 990-N
- Sioux Empire Film Festival
EIN 474314020 · Headquarters: Sioux Falls, SD, US · Unknown & Unclassified · Latest available filing year: 2015 · Primary form: IRS Form 990-N
- Sioux Empire Home Builders Care Foundation
EIN 223946421 · Headquarters: SIOUX FALLS, SD, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990