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
- Clark Industrial Development Corporation
EIN 510196412 · Headquarters: CLARK, SD, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990
- Clark Rural Water System Inc
EIN 460345498 · Headquarters: Clark, SD, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990
- Clark Unified
EIN 931708100 · Headquarters: clark, SD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Clay County 4-H Leaders Association
EIN 393862553 · Headquarters: Vermillion, SD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Clay County Park Association
EIN 460305864 · Headquarters: Vermillion, SD, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ
- Clay County Youth Trust Fund Inc
EIN 237359791 · Headquarters: VERMILLION, SD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Clay Rural Water System Inc
EIN 460332131 · Headquarters: Wakonda, SD, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990
- Clay-union Electric Corporation
EIN 460120430 · Headquarters: VERMILLION, SD, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990
- Clearfield School
EIN 460428189 · Headquarters: DELMONT, SD, US · Unknown & Unclassified · Latest available filing year: 2020 · Primary form: IRS Form 990-N
- Cleveland American Indian Center Youth Services Inc
EIN 341115937 · Headquarters: Dupree, SD, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N
- Clovervale 4-H Club of Tripp County
EIN 874658430 · Headquarters: Winner, SD, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N
- Clyde Park Charitable Foundation C/o Corient Trust Company Llc
EIN 046051719 · Headquarters: SIOUX FALLS, SD, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-PF
- Codington County American Legion Post 17
EIN 460217759 · Headquarters: WATERTOWN, SD, USA · Unknown & Unclassified · Latest available filing year: 2022 · Primary form: IRS Form 990
- Codington-clark Electric Cooperative
EIN 460121065 · Headquarters: WATERTOWN, SD, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990
- Colman Economic Development Corporation
EIN 562539591 · Headquarters: Colman, SD, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ
- Colman Lutheran Church
EIN 460323321 · Headquarters: Colman, SD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Colome Development Corporation
EIN 363755591 · Headquarters: Wewela, SD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Columbia Cemetery Association
EIN 510158154 · Headquarters: Bath, SD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Community & Youth Involved
EIN 460331926 · Headquarters: Fort Pierre, SD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990
- Community Counseling Services
EIN 460272193 · Headquarters: HURON, SD, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990
- Community Development Board Fund
EIN 472712591 · Headquarters: Avon, SD, US · Unknown & Unclassified · Latest available filing year: 2017 · Primary form: IRS Form 990-N
- Community Fire Truck Association
EIN 466027980 · Headquarters: HURON, SD, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990
- Community Health Center of the Black Hills
EIN 460418932 · Headquarters: RAPID CITY, SD, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990
- Community Memorial Hospital Inc
EIN 460219795 · Headquarters: BURKE, SD, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990
- Community Youth Center Inc
EIN 460357203 · Headquarters: wewela, SD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Computer Science Teachers Association - South Dakota
EIN 880673413 · Headquarters: Sioux Falls, SD, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N
- Concerned Citizens for Sturgis Inc
EIN 452705673 · Headquarters: Rapid City, SD, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N
- Conde Civic Development Assn
EIN 460221005 · Headquarters: Conde, SD, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N
- Congregation of the Priests of the Sacred Heart
EIN 460235912 · Headquarters: CHAMBERLAIN, SD, USA · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-T
- Congregational Pilgram Charitable Trust Inc
EIN 466062089 · Headquarters: RAPID CITY, SD, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N
- Connections
EIN 363490570 · Headquarters: YANKTON, SD, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-PF
- Construction Financial Management Association
EIN 200492695 · Headquarters: SIOUX FALLS, SD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Construction Industry Center Inc
EIN 460242579 · Headquarters: RAPID CITY, SD, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990
- Coral Foundation
EIN 366149159 · Headquarters: SPEARFISH, SD, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-PF
- Corn Palace Stampede Rodeo
EIN 237227487 · Headquarters: Mitchell, SD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990
- Cornerstone Rescue Mission
EIN 363296431 · Headquarters: RAPID CITY, SD, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990
- Cottonwood Cooperative District
EIN 466015180 · Headquarters: Edgemont, SD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Council On College Admission In South Dakota
EIN 460368468 · Headquarters: Belle Fourche, SD, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ
- Country Kids 4-H Club of South Dakota
EIN 921508569 · Headquarters: Sisseton, SD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Countryside Homeowners Association
EIN 460397786 · Headquarters: RAPID CITY, SD, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N
- Countryside Hospice Inc
EIN 460366235 · Headquarters: PIERRE, SD, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990
- Cozard Library Trust Fund
EIN 466039143 · Headquarters: Mitchell, SD, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-PF
- Crazy Horse Memorial Foundation
EIN 460220678 · Headquarters: CRAZY HORSE, SD, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990
- Crime Stoppers of the Sioux Empire Inc
EIN 460400721 · Headquarters: Sioux Falls, SD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Crisis Intervention Shelter Service
EIN 363792902 · Headquarters: STURGIS, SD, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990
- Crooks Development Corporation
EIN 460403384 · Headquarters: Crooks, SD, US · Unknown & Unclassified · Latest available filing year: 2012 · Primary form: IRS Form 990-N
- Cruisin Classics
EIN 460440765 · Headquarters: Eden, SD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Crusaders Motorcycle Club
EIN 271902288 · Headquarters: Aberdeen, SD, US · Unknown & Unclassified · Latest available filing year: 2019 · Primary form: IRS Form 990-N
- Crystal Theatre Cultural Association
EIN 460406775 · Headquarters: Flandreau, SD, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ
- Curry Family Foundation
EIN 263933310 · Headquarters: STURGIS, SD, US · Unknown & Unclassified · Latest available filing year: 2011 · Primary form: IRS Form 990-N
- Custer County Chamber of Commerce
EIN 460213825 · Headquarters: CUSTER, SD, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990
- Custer County Historical Society
EIN 237412305 · Headquarters: Custer, SD, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ
- Custer County Senior Citizens Club
EIN 460367008 · Headquarters: CUSTER, SD, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ
- Custer Volunteer Fire Department
EIN 460273350 · Headquarters: CUSTER, SD, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990
- Dacotah Prairie Museum Foundation
EIN 460389362 · Headquarters: ABERDEEN, SD, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990
- Dacotah Territory Muzzle Loadersinc
EIN 460358683 · Headquarters: Mansfield, SD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Dakota Charitable Foundation Inc
EIN 460422869 · Headquarters: RAPID CITY, SD, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-PF
- Dakota Choral Union
EIN 460376684 · Headquarters: Rapid City, SD, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N
- Dakota Classic Cutting Futurity
EIN 460400007 · Headquarters: REDFIELD, SD, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N
- Dakota Concrete Pipe Association
EIN 463526391 · Headquarters: HARTFORD, SD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Dakota Dunes Country Club Inc
EIN 420527250 · Headquarters: DAKOTA DUNES, SD, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990
- Dakota Energy Cooperative Inc
EIN 460434317 · Headquarters: HURON, SD, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990
- Dakota Explorers 4-H Club of South Dakota
EIN 921041576 · Headquarters: Sioux Falls, SD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Dakota Farmers Four H Club of Lincoln County South Dakota
EIN 861659644 · Headquarters: CANTON, SD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Dakota Horizons
EIN 422693222 · Headquarters: Sioux Falls, SD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Dakota Hospital Foundation Inc
EIN 460226067 · Headquarters: VERMILLION, SD, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990
- Dakota Hunting Retriever Club
EIN 680533819 · Headquarters: Sioux Falls, SD, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N
- Dakota Lakes Research Farm Co Steve Robbennolt
EIN 460359574 · Headquarters: PIERRE, SD, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990
- Dakota Lassies & Rangers 4-H Club of Lincoln County South Dakota
EIN 862583482 · Headquarters: Lennox, SD, US · Unknown & Unclassified · Latest available filing year: 2021 · Primary form: IRS Form 990-N
- Dakota Mainstem Regional Water System Inc
EIN 931469221 · Headquarters: Madison, SD, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990
- Dakota Man Triathalon
EIN 830484619 · Headquarters: Sioux Falls, SD, US · Unknown & Unclassified · Latest available filing year: 2015 · Primary form: IRS Form 990-N
- Dakota Plains Legal Services
EIN 460310828 · Headquarters: MISSION, SD, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990
- Dakota Rural Action
EIN 460398656 · Headquarters: Brookings, SD, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990
- Dakota Sportsman Inc
EIN 272170189 · Headquarters: Watertown, SD, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N
- Dakota State University Alumni Inc
EIN 460339518 · Headquarters: Madison, SD, US · Unknown & Unclassified · Latest available filing year: 2017 · Primary form: IRS Form 990-N
- Dakota Territory Dance Club
EIN 363626364 · Headquarters: RAPID CITY, SD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Dakota Wounded Warriors Inc
EIN 863357670 · Headquarters: Sioux Falls, SD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Dakotaland Museum
EIN 460391895 · Headquarters: HURON, SD, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990
- Dale Cemetery Association
EIN 010944889 · Headquarters: Pollock, SD, US · Unknown & Unclassified · Latest available filing year: 2019 · Primary form: IRS Form 990-N
- Damascus Road
EIN 352420343 · Headquarters: Lake Andes, SD, US · Unknown & Unclassified · Latest available filing year: 2011 · Primary form: IRS Form 990-N
- Daniel Ryan Kensinger Ira
EIN 821024641 · Headquarters: JEFFERSON, SD, USA · Unknown & Unclassified · Latest available filing year: 2020 · Primary form: IRS Form 990-T
- Danish Evangelical Lutheran Cemetary Assn
EIN 460338537 · Headquarters: Lake Norden, SD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Darton Geological Society
EIN 371608051 · Headquarters: rapid city, SD, US · Unknown & Unclassified · Latest available filing year: 2019 · Primary form: IRS Form 990-N
- Daughters of Norway
EIN 821704322 · Headquarters: Sioux Falls, SD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Daughters of the American Revolution Mary Chilton Chapter
EIN 466014885 · Headquarters: Sioux Falls, SD, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ
- Daughters of the Nile
EIN 237127033 · Headquarters: Sioux Falls, SD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Daughters of the Nile
EIN 237527220 · Headquarters: Rapid City, SD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Daughters of the Nile Temple Patrol
EIN 271220375 · Headquarters: Sioux Falls, SD, US · Unknown & Unclassified · Latest available filing year: 2019 · Primary form: IRS Form 990-N
- Davison County Dav Chapter No 27
EIN 920520511 · Headquarters: MITCHELL, SD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Davison Rural Water System
EIN 460375023 · Headquarters: MITCHELL, SD, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990
- Day County Arts Council
EIN 201450543 · Headquarters: Webster, SD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Day County Fair Board
EIN 261839194 · Headquarters: Waubay, SD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Day County Search And Rescue Inc
EIN 814800194 · Headquarters: Webster, SD, US · Unknown & Unclassified · Latest available filing year: 2020 · Primary form: IRS Form 990-N
- Days Of '76 Inc
EIN 460308006 · Headquarters: Deadwood, SD, USA · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990
- De Smet Development Corporation
EIN 466017848 · Headquarters: De Smet, SD, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990
- De Smet Emergency Rescue Unit Inc
EIN 460357603 · Headquarters: De Smet, SD, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990
- Deadwood Area Chamber & Visitor's Bureau
EIN 460118544 · Headquarters: Deadwood, SD, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990
- Deadwood BPOE #508
EIN 460110157 · Headquarters: Deadwood, SD, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990
- Deadwood Jam Inc
EIN 460439525 · Headquarters: Deadwood, SD, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990
- Deadwood Lead Economic Development
EIN 363534219 · Headquarters: LEAD, SD, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990