Environment nonprofits in Iowa

Environment nonprofits in Iowa. Browse 442 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

  1. Newton Arboretum and Botanical Gardens Inc

    EIN 421436608 · Headquarters: NEWTON, IA, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990

  2. Nishnabotna Conservation Foundation

    EIN 030585252 · Headquarters: Harlan, IA, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  3. Nishnabotna Water Defenderss

    EIN 334161429 · Headquarters: Atlantic, IA, US · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  4. Northeast Iowa Citizens for Clean Water Inc

    EIN 270030317 · Headquarters: POSTVILLE, IA, US · Environment · Latest available filing year: 2010 · Primary form: IRS Form 990-N

  5. Northern Iowa River Greenbelt Assoc

    EIN 421393296 · Headquarters: BELMOND, IA, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  6. Oh Happy Play Llc

    EIN 853867528 · Headquarters: Dubuque, IA, US · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  7. Okamanpedan Development Association

    EIN 743158816 · Headquarters: Dolliver, IA, US · Environment · Latest available filing year: 2014 · Primary form: IRS Form 990-N

  8. Operation 11Th Hour

    EIN 874490396 · Headquarters: Independence, IA, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  9. Osage Conservation Club

    EIN 426081192 · Headquarters: Osage, IA, US · Environment · Latest available filing year: 2014 · Primary form: IRS Form 990-N

  10. Oskaloosa Trees Forever

    EIN 471819704 · Headquarters: Oskaloosa, IA, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  11. Outdoor Alliance of Story County

    EIN 462035019 · Headquarters: Ames, IA, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  12. Partners for the Future - Dickinson County Land Air and Water

    EIN 472078791 · Headquarters: Okoboji, IA, US · Environment · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  13. Partners of Scott County Watersheds

    EIN 800105103 · Headquarters: Davenport, IA, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  14. Partners of the Parks

    EIN 453325264 · Headquarters: Granger, IA, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  15. Pathfinders Rc&d

    EIN 421127993 · Headquarters: FAIRFIELD, IA, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990

  16. Paxton Family Trust

    EIN 426567814 · Headquarters: Storm Lake, IA, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990-PF

  17. Pella Earth Day Committee

    EIN 421430505 · Headquarters: Pella, IA, US · Environment · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  18. Pella Garden Club Inc

    EIN 421067227 · Headquarters: PELLA, IA, USA · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  19. Pkw & Sk Charities

    EIN 932281561 · Headquarters: Maquoketa, IA, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  20. Plymouth Betterment Committee Inc

    EIN 883735522 · Headquarters: PLYMOUTH, IA, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  21. Pocahontas County Conservation Foundation

    EIN 421426209 · Headquarters: Pocahontas, IA, US · Environment · Latest available filing year: 2009 · Primary form: IRS Form 990-N

  22. Polk City Arbor League Inc

    EIN 471438003 · Headquarters: Polk City, IA, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  23. Pollinator Alliance of the Heartland

    EIN 884249550 · Headquarters: Council Bluffs, IA, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  24. Poweshiek County Whitetails Conservation

    EIN 823537562 · Headquarters: Malcom, IA, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  25. Prairie Fire Foundation

    EIN 994269291 · Headquarters: Iowa City, IA, US · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  26. Prairie Forever Conservancy

    EIN 994384236 · Headquarters: CEDAR RAPIDS, IA, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990-PF

  27. Prairie Partners Rc&d Area Inc

    EIN 300087514 · Headquarters: Algona, IA, US · Environment · Latest available filing year: 2010 · Primary form: IRS Form 990-N

  28. Preserve Our Bluffs Inc

    EIN 201459083 · Headquarters: Dubuque, IA, US · Environment · Latest available filing year: 2012 · Primary form: IRS Form 990-N

  29. Project Green Inc

    EIN 421521269 · Headquarters: Iowa City, IA, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  30. Quad City Audubon Society

    EIN 360352029 · Headquarters: Bettendorf, IA, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  31. Rabbit Hollow Nature Conservancy Inc

    EIN 884104953 · Headquarters: DUBUQUE, IA, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990-PF

  32. Raptology Inc

    EIN 844409443 · Headquarters: Iowa City, IA, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  33. Rathbun Land and Water Alliance

    EIN 421473376 · Headquarters: CENTERVILLE, IA, USA · Environment · Latest available filing year: 2023 · Primary form: IRS Form 990-EZ

  34. Recycled Fish

    EIN 510501023 · Headquarters: Council Bluffs, IA, US · Environment · Latest available filing year: 2007 · Primary form: IRS Form 990-N

  35. Regen Gardens

    EIN 851657870 · Headquarters: WATERLOO, IA, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  36. Repurpose Rising

    EIN 993275682 · Headquarters: Des Moines, IA, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  37. Resource Conservation and Development for Northeast Iowa Inc

    EIN 421309260 · Headquarters: POSTVILLE, IA, USA · Environment · Latest available filing year: 2023 · Primary form: IRS Form 990

  38. Responsible River Management

    EIN 453617523 · Headquarters: Sidney, IA, US · Environment · Latest available filing year: 2022 · Primary form: IRS Form 990-N

  39. Returned Peace Corp Volunteers for Environment & Department

    EIN 421473787 · Headquarters: Iowa City, IA, US · Environment · Latest available filing year: 2007 · Primary form: IRS Form 990-N

  40. Rhino Momma Incorporated

    EIN 880941538 · Headquarters: LONE ROCK, IA, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  41. Rhino Momma Project

    EIN 883099588 · Headquarters: LONE ROCK, IA, USA · Environment · Latest available filing year: 2023 · Primary form: IRS Form 990-PF

  42. Rice Lake Chapter of the Izaak Walton League of Am

    EIN 426076829 · Headquarters: LAKE MILLS, IA, USA · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  43. Ringgold Conservation Foundation Inc

    EIN 320433869 · Headquarters: MOUNT AYR, IA, US · Environment · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  44. River Cities Travelin Squares

    EIN 237434501 · Headquarters: Camanche, IA, US · Environment · Latest available filing year: 2013 · Primary form: IRS Form 990-N

  45. River Development Inc

    EIN 204253900 · Headquarters: Humboldt, IA, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  46. Riverside Ball Association

    EIN 421298593 · Headquarters: Riverside, IA, US · Environment · Latest available filing year: 2016 · Primary form: IRS Form 990-N

  47. Rock Creek Lake Alliance

    EIN 061696583 · Headquarters: Grinnell, IA, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  48. Sanctuary Wetlands Association

    EIN 421431633 · Headquarters: Mount Pleasant, IA, US · Environment · Latest available filing year: 2009 · Primary form: IRS Form 990-N

  49. Sande Land Subdivision Water System Inc

    EIN 421058458 · Headquarters: Adel, IA, US · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  50. Schmuecker Renewable Energy System Inc

    EIN 814827831 · Headquarters: BLAIRSTOWN, IA, USA · Environment · Latest available filing year: 2020 · Primary form: IRS Form 990-EZ

  51. Science & Environmental Health Network

    EIN 450452872 · Headquarters: Ames, IA, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990

  52. Scott County Beautification Foundation

    EIN 421360197 · Headquarters: Davenport, IA, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  53. Shelby County Trails Board Inc

    EIN 475098326 · Headquarters: Harlan, IA, USA · Environment · Latest available filing year: 2023 · Primary form: IRS Form 990-EZ

  54. Silos and Smokestacks National Heritage Area Foundation

    EIN 274844288 · Headquarters: Independence, IA, US · Environment · Latest available filing year: 2017 · Primary form: IRS Form 990-N

  55. Silver Lake Improvement Project - Palo Alto

    EIN 271273168 · Headquarters: RUTHVEN, IA, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  56. Sioux City Garden Club

    EIN 421219280 · Headquarters: Sioux City, IA, US · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  57. Sioux County Conservation Foundation

    EIN 465642613 · Headquarters: HAWARDEN, IA, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990

  58. Sioux Rivers Resource Conservation and Development Inc

    EIN 421475128 · Headquarters: SGT BLUFF, IA, US · Environment · Latest available filing year: 2014 · Primary form: IRS Form 990-N

  59. Slpia Inc

    EIN 472068983 · Headquarters: Lake Park, IA, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  60. Sno-lyons

    EIN 421447637 · Headquarters: ROCK RAPIDS, IA, USA · Environment · Latest available filing year: 2020 · Primary form: IRS Form 990-EZ

  61. Society of American Foresters

    EIN 521273254 · Headquarters: LETTS, IA, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  62. Soil and Water Conservation Society

    EIN 420716340 · Headquarters: ANKENY, IA, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990

  63. Soil and Water Conservation Society

    EIN 426090428 · Headquarters: Indianola, IA, US · Environment · Latest available filing year: 2018 · Primary form: IRS Form 990-N

  64. Soil Enhancement and Subsurface Water Ma

    EIN 881273653 · Headquarters: DEXTER, IA, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990

  65. South Central Ia Cedar Creek Wma

    EIN 474807663 · Headquarters: Albia, IA, US · Environment · Latest available filing year: 2021 · Primary form: IRS Form 990-N

  66. Southern Iowa Oak Savannah Alliance

    EIN 204572980 · Headquarters: LEON, IA, USA · Environment · Latest available filing year: 2019 · Primary form: IRS Form 990-EZ

  67. Southfork Watershed Alliance Inc

    EIN 421494853 · Headquarters: IOWA FALLS, IA, US · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  68. Southwest Iowa Nature Trails Project

    EIN 421325845 · Headquarters: IMOGENE, IA, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990

  69. Spirit of Okoboji

    EIN 822954269 · Headquarters: Okoboji, IA, US · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990

  70. Sunshine Garden Club of Winterset Iowa

    EIN 873969520 · Headquarters: Van Meter, IA, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  71. Sustainable Independence

    EIN 463427174 · Headquarters: Brandon, IA, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  72. Sustainable Iowa Land Trust

    EIN 472730222 · Headquarters: WEST BRANCH, IA, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990

  73. Swana Iowa Society of Solid Waste Operat Operations Chapter Inc

    EIN 421314569 · Headquarters: STORM LAKE, IA, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  74. Tallgrass Prairie Audubon Society

    EIN 421366420 · Headquarters: Grinnell, IA, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  75. Technical Services Providers

    EIN 900886079 · Headquarters: Ames, IA, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  76. The Alliance for Clean Energy Systems Inc

    EIN 391793196 · Headquarters: Keokuk, IA, US · Environment · Latest available filing year: 2010 · Primary form: IRS Form 990-N

  77. The Association for the Preservation of Clear Lake

    EIN 201454412 · Headquarters: Clear Lake, IA, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  78. The Conservation Foundation of Jefferson County Iowa

    EIN 421486092 · Headquarters: FAIRFIELD, IA, USA · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  79. The Federated Garden Clubs of Iowa

    EIN 900013951 · Headquarters: Gowrie, IA, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  80. The Federated Garden Clubs of Iowa Inc

    EIN 421478343 · Headquarters: Des Moines, IA, US · Environment · Latest available filing year: 2019 · Primary form: IRS Form 990-N

  81. The Federated Garden Clubs of Iowa Inc

    EIN 426076053 · Headquarters: Kensett, IA, US · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  82. The Federated Garden Clubs of Iowa Inc

    EIN 900013929 · Headquarters: Baxter, IA, US · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  83. The Federated Garden Clubs of Iowa Inc

    EIN 900013932 · Headquarters: Winterset, IA, US · Environment · Latest available filing year: 2020 · Primary form: IRS Form 990-N

  84. The Federated Garden Clubs of Iowa Inc

    EIN 900013934 · Headquarters: ARLINGTON, IA, US · Environment · Latest available filing year: 2013 · Primary form: IRS Form 990-N

  85. The Federated Garden Clubs of Iowa Inc

    EIN 900013936 · Headquarters: Vinton, IA, US · Environment · Latest available filing year: 2022 · Primary form: IRS Form 990-N

  86. The Federated Garden Clubs of Iowa Inc

    EIN 900013937 · Headquarters: Algona, IA, US · Environment · Latest available filing year: 2008 · Primary form: IRS Form 990-N

  87. The Federated Garden Clubs of Iowa Inc

    EIN 900013940 · Headquarters: Estherville, IA, US · Environment · Latest available filing year: 2019 · Primary form: IRS Form 990-N

  88. The Federated Garden Clubs of Iowa Inc

    EIN 900013944 · Headquarters: Madrid, IA, US · Environment · Latest available filing year: 2008 · Primary form: IRS Form 990-N

  89. The Federated Garden Clubs of Iowa Inc

    EIN 900013950 · Headquarters: Monticello, IA, US · Environment · Latest available filing year: 2019 · Primary form: IRS Form 990-N

  90. The Federated Garden Clubs of Iowa Inc

    EIN 900013952 · Headquarters: Northwood, IA, US · Environment · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  91. The Federated Garden Clubs of Iowa Inc

    EIN 900013958 · Headquarters: Cedar Rapids, IA, US · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  92. The Federated Garden Clubs of Iowa Inc

    EIN 900013960 · Headquarters: Emmetsburg, IA, US · Environment · Latest available filing year: 2011 · Primary form: IRS Form 990-N

  93. The Federated Garden Clubs of Iowa Inc

    EIN 900013963 · Headquarters: KNOXVILLE, IA, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  94. The Federated Garden Clubs of Iowa Inc

    EIN 900013966 · Headquarters: Norwalk, IA, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  95. The Federated Garden Clubs of Iowa Inc

    EIN 900013967 · Headquarters: DECORAH, IA, US · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  96. The Federated Garden Clubs of Iowa Inc

    EIN 900013969 · Headquarters: Keosauqua, IA, US · Environment · Latest available filing year: 2022 · Primary form: IRS Form 990-N

  97. The Federated Garden Clubs of Iowa Inc

    EIN 900013971 · Headquarters: DesMoines, IA, US · Environment · Latest available filing year: 2009 · Primary form: IRS Form 990-N

  98. The Federated Garden Clubs of Iowa Inc

    EIN 900013974 · Headquarters: Tipton, IA, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  99. The Federated Garden Clubs of Iowa Inc

    EIN 900013977 · Headquarters: Afton, IA, US · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  100. The Federated Garden Clubs of Iowa Inc

    EIN 900013978 · Headquarters: LE MARS, IA, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

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