Nonprofits in Iowa
Nonprofits in Iowa. Browse 36,116 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
- Ocheyedan Senior Activity Center
EIN 421159843 · Headquarters: Ocheyedan, IA, US · Human Services · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Ochylski Family Foundation
EIN 364110483 · Headquarters: DES MOINES, IA, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2024 · Primary form: IRS Form 990-PF
- Oci Us Foundation
EIN 822822123 · Headquarters: Urbandale, IA, USA · Public Safety, Disaster Preparedness & Relief · Latest available filing year: 2022 · Primary form: IRS Form 990-PF
- Ocia Ia 2
EIN 421527125 · Headquarters: Fort Atkinson, IA, US · Food, Agriculture & Nutrition · Latest available filing year: 2007 · Primary form: IRS Form 990-N
- Ockenfels Family Foundation
EIN 421510256 · Headquarters: IOWA CITY, IA, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2016 · Primary form: IRS Form 990-PF
- OCO Inc
EIN 471854856 · Headquarters: Iowa City, IA, US · Unknown & Unclassified · Latest available filing year: 2017 · Primary form: IRS Form 990-N
- Oconnor and Thomas Trust Scholarship
EIN 426466945 · Headquarters: Dubuque, IA, US · Education · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Oconnor Hall Trust
EIN 426477170 · Headquarters: DENISON, IA, USA · Religion Related · Latest available filing year: 2025 · Primary form: IRS Form 990
- Oconnor Trust
EIN 426477169 · Headquarters: VAIL, IA, USA · Religion Related · Latest available filing year: 2012 · Primary form: IRS Form 990-EZ
- Oconnor-regenwether Post 3633 Veterans of Foreign Wars Auxiliary
EIN 611551947 · Headquarters: MAQUOKETA, IA, US · Public & Societal Benefit · Latest available filing year: 2023 · Primary form: IRS Form 990-N
- Octagon Center for the Arts
EIN 420937490 · Headquarters: AMES, IA, USA · Arts, Culture & Humanities · Latest available filing year: 2024 · Primary form: IRS Form 990
- Odebolt Cemetery Association
EIN 420654578 · Headquarters: Odebolt, IA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Odebolt Comm Hsg Corp
EIN 420099107 · Headquarters: Vail, IA, US · Unknown & Unclassified · Latest available filing year: 2010 · Primary form: IRS Form 990-N
- Odebolt Community Center
EIN 421508703 · Headquarters: Odebolt, IA, USA · Recreation & Sports · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ
- Odebolt Community Foundation
EIN 393587240 · Headquarters: Arthur, IA, USA · Human Services · Latest available filing year: 2025 · Primary form: IRS Form 990
- Odebolt Development Corporation
EIN 237026765 · Headquarters: Odebolt, IA, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ
- Odebolt Fire Department Association
EIN 472968816 · Headquarters: Odebolt, IA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N
- Odebolt-arthur Parent Teacher Community Partnership
EIN 461085740 · Headquarters: ODEBOLT, IA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Odella S Baak Charitable Trust
EIN 476983787 · Headquarters: SIOUX CITY, IA, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-PF
- Oel Youth and Conservation Initiati
EIN 920257640 · Headquarters: STEAMBOAT ROCK, IA, US · Youth Development · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Oelwein Area Council of Churches
EIN 821962307 · Headquarters: Oelwein, IA, USA · Food, Agriculture & Nutrition · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ
- Oelwein Area Historical Society
EIN 421061661 · Headquarters: Oelwein, IA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Oelwein Area United Way Inc
EIN 421225224 · Headquarters: Oelwein, IA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ
- Oelwein Celebrations Renewed Inc
EIN 461891534 · Headquarters: Oelwein, IA, US · Arts, Culture & Humanities · Latest available filing year: 2022 · Primary form: IRS Form 990-N
- Oelwein Chamber and Area Development Inc
EIN 421295227 · Headquarters: Oelwein, IA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990
- Oelwein Community Education Association
EIN 421084816 · Headquarters: Des Moines, IA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N
- Oelwein Community Healthcare Foundation
EIN 453988044 · Headquarters: Oelwein, IA, USA · Health Care · Latest available filing year: 2025 · Primary form: IRS Form 990
- Oelwein Community Plaza Foundation
EIN 421370140 · Headquarters: Oelwein, IA, USA · Recreation & Sports · Latest available filing year: 2022 · Primary form: IRS Form 990-EZ
- Oelwein Community School District Veba Trust
EIN 472322251 · Headquarters: OELWEIN, IA, USA · Mutual & Membership Benefit · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ
- Oelwein Elementary Pto
EIN 301459179 · Headquarters: Oelwein, IA, US · Education · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Oelwein Event Corporation
EIN 872687887 · Headquarters: Oelwein, IA, USA · Community Improvement & Capacity Building · Latest available filing year: 2024 · Primary form: IRS Form 990
- Oelwein Fine Arts Guild
EIN 815395948 · Headquarters: Stanley, IA, US · Education · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Oelwein Fire Fighters Foundation Inc
EIN 831468125 · Headquarters: Oelwein, IA, US · Public Safety, Disaster Preparedness & Relief · Latest available filing year: 2024 · Primary form: IRS Form 990-N
- Oelwein Public Library Foundation
EIN 264702422 · Headquarters: Oelwein, IA, US · Education · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Oelwein Senior Citizens Housing Corporation
EIN 237354589 · Headquarters: INDEPENDENCE, IA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990
- Oelwein Soccer Club Inc
EIN 842805908 · Headquarters: Oelwein, IA, US · Recreation & Sports · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Oelwein Support Staff Association
EIN 421343708 · Headquarters: Des Moines, IA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N
- Oelwein Trap Club
EIN 821582454 · Headquarters: Oelwein, IA, USA · Recreation & Sports · Latest available filing year: 2025 · Primary form: IRS Form 990-PF
- Oelwein Youth Sports Association
EIN 923992686 · Headquarters: Oelwein, IA, USA · Recreation & Sports · Latest available filing year: 2025 · Primary form: IRS Form 990
- Oelwein-fairbank Sharks Swim Team
EIN 863289553 · Headquarters: Gilbertville, IA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N
- Office of Residents Concerns
EIN 271294583 · Headquarters: Des Moines, IA, US · Crime & Legal Related · Latest available filing year: 2021 · Primary form: IRS Form 990-N
- Officer Kevin Cram Memorial
EIN 415083834 · Headquarters: Algona, IA, US · Education · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Ogden Alumni Association
EIN 473260893 · Headquarters: OGDEN, IA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Ogden Athletic Booster Club Inc
EIN 421220867 · Headquarters: OGDEN, IA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Ogden Community Scholarship Fdn %Lesli Hayes
EIN 237439812 · Headquarters: OGDEN, IA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ
- Ogden Community School District Foundation
EIN 421413756 · Headquarters: Ogden, IA, US · Education · Latest available filing year: 2008 · Primary form: IRS Form 990-N
- Ogden Development Corp Inc
EIN 237096616 · Headquarters: OGDEN, IA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Ogden Education Association
EIN 421089533 · Headquarters: Des Moines, IA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N
- Ogden First Responders and Ems Association
EIN 270574971 · Headquarters: Ogden, IA, US · Health Care · Latest available filing year: 2024 · Primary form: IRS Form 990-N
- Ogden Football Club
EIN 992269627 · Headquarters: OGDEN, IA, US · Recreation & Sports · Latest available filing year: 2024 · Primary form: IRS Form 990-N
- Ogden Legacy
EIN 455379404 · Headquarters: OGDEN, IA, USA · Community Improvement & Capacity Building · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ
- Ogden Mens Club Inc
EIN 270535874 · Headquarters: Ames, IA, US · Community Improvement & Capacity Building · Latest available filing year: 2023 · Primary form: IRS Form 990-N
- Ogden Music Boosters Inc
EIN 454465820 · Headquarters: Ogden, IA, US · Education · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Oh Happy Play Llc
EIN 853867528 · Headquarters: Dubuque, IA, US · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990-N
- Oh My Dog Rescue
EIN 920862449 · Headquarters: MADRID, IA, USA · Animal Related · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ
- Ohio Valley Philosophy of Education Society
EIN 352852615 · Headquarters: Cedar Falls, IA, US · Education · Latest available filing year: 2024 · Primary form: IRS Form 990-N
- Ohnward Foundation
EIN 201895465 · Headquarters: MAQUOKETA, IA, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2025 · Primary form: IRS Form 990-PF
- Ohs Ostfriesian Heritage Society
EIN 421462060 · Headquarters: Grundy Center, IA, US · Religion Related · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Oidma Inc
EIN 824473484 · Headquarters: Ankeny, IA, US · Human Services · Latest available filing year: 2023 · Primary form: IRS Form 990-N
- Oikourmene Religious Center
EIN 237012998 · Headquarters: Mason City, IA, US · Religion Related · Latest available filing year: 2009 · Primary form: IRS Form 990-N
- Ojcc Student Government Association
EIN 454502972 · Headquarters: Ottumwa, IA, US · Education · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Ok Peo Service Council-muskogee
EIN 237316976 · Headquarters: DES MOINES, IA, US · Community Improvement & Capacity Building · Latest available filing year: 2016 · Primary form: IRS Form 990-N
- OK200-Stop The Traffic
EIN 464678820 · Headquarters: Des Moines, IA, USA · International, Foreign Affairs & National Security · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ
- Okamanpedan Development Association
EIN 743158816 · Headquarters: Dolliver, IA, US · Environment · Latest available filing year: 2014 · Primary form: IRS Form 990-N
- Oklahoma Gas & Electric Company Medical
EIN 364054466 · Headquarters: DES MOINES, IA, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990
- Oklahoma Gas and Electric Company
EIN 736290375 · Headquarters: DES MOINES, IA, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990
- Okoboji Baseball Boyz Inc
EIN 850794988 · Headquarters: SPIRIT LAKE, IA, US · Education · Latest available filing year: 2024 · Primary form: IRS Form 990-N
- Okoboji Bible Conference Ministries
EIN 363459944 · Headquarters: ARNOLDS PARK, IA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990
- Okoboji Cemetery Association
EIN 237271679 · Headquarters: Arnolds Park, IA, US · Unknown & Unclassified · Latest available filing year: 2021 · Primary form: IRS Form 990-N
- Okoboji Community School Foundation
EIN 421463737 · Headquarters: MILFORD, IA, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ
- Okoboji Cycling Classic Inc
EIN 472256151 · Headquarters: Milford, IA, US · Recreation & Sports · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Okoboji Education Association
EIN 274416226 · Headquarters: Des Moines, IA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N
- Okoboji Fine Arts
EIN 842441090 · Headquarters: Milford, IA, US · Education · Latest available filing year: 2024 · Primary form: IRS Form 990-N
- Okoboji Foundation
EIN 421322070 · Headquarters: OKOBOJI, IA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-PF
- Okoboji Performing Arts
EIN 873141659 · Headquarters: MILFORD, IA, US · Arts, Culture & Humanities · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Okoboji Pioneers Booster Club Inc
EIN 464044850 · Headquarters: Milford, IA, USA · Education · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ
- Okoboji Protective Association
EIN 421358811 · Headquarters: Okoboji, IA, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ
- Okoboji Yacht Club Inc
EIN 237409197 · Headquarters: MILFORD, IA, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ
- Okoboji Yacht Club Sailing School Inc
EIN 421467238 · Headquarters: MILFORD, IA, USA · Education · Latest available filing year: 2025 · Primary form: IRS Form 990
- Okoboji Youth Basketball Association Inc
EIN 461017211 · Headquarters: Milford, IA, US · Recreation & Sports · Latest available filing year: 2024 · Primary form: IRS Form 990-N
- Okoboji Youth Football Inc
EIN 272753312 · Headquarters: Milford, IA, US · Recreation & Sports · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Okoboji Youth Wrestling Club
EIN 421520560 · Headquarters: Milford, IA, US · Recreation & Sports · Latest available filing year: 2012 · Primary form: IRS Form 990-N
- Oktemberfest Foundation
EIN 203371201 · Headquarters: Marshalltown, IA, US · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Oktemberfest Inc
EIN 421419118 · Headquarters: Marshalltown, IA, US · Recreation & Sports · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Oktoberfest Committee
EIN 421206961 · Headquarters: OTTUMWA, IA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ
- Olberg Family Charitable Trust
EIN 421305184 · Headquarters: MARION, IA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-PF
- Old 20 Community Development
EIN 471886045 · Headquarters: CUSHING, IA, USA · Community Improvement & Capacity Building · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ
- Old Brick Episcopal Corporation
EIN 421304575 · Headquarters: Iowa City, IA, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990
- Old Brick Foundation
EIN 421498822 · Headquarters: Iowa City, IA, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2012 · Primary form: IRS Form 990-PF
- Old Capitol City Roller Derby Inc
EIN 472530789 · Headquarters: Tiffin, IA, US · Recreation & Sports · Latest available filing year: 2024 · Primary form: IRS Form 990-N
- Old Capitol Quilters Guild
EIN 421381524 · Headquarters: Iowa City, IA, US · Arts, Culture & Humanities · Latest available filing year: 2024 · Primary form: IRS Form 990-N
- Old Capitol Skaters Alliance Inc Dba Iowa City Coralville Hockey Association
EIN 421428303 · Headquarters: CORALVILLE, IA, USA · Recreation & Sports · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ
- Old Creamery Theatre Company Inc
EIN 420985212 · Headquarters: AMANA, IA, USA · Unknown & Unclassified · Latest available filing year: 2021 · Primary form: IRS Form 990
- Old Fort Madison Preservation Inc
EIN 993068443 · Headquarters: FORT MADISON, IA, USA · Arts, Culture & Humanities · Latest available filing year: 2025 · Primary form: IRS Form 990
- Old Fort Players Inc
EIN 421193559 · Headquarters: Fort Madison, IA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Old Friends Radio
EIN 870997690 · Headquarters: DYERSVILLE, IA, US · Arts, Culture & Humanities · Latest available filing year: 2024 · Primary form: IRS Form 990-N
- Old Iron Company
EIN 421106280 · Headquarters: Hartley, IA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Old Rose Hill Cemetery Association
EIN 471528572 · Headquarters: Rose Hill, IA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Old School Produce Partners Inc
EIN 844781286 · Headquarters: Vinton, IA, US · Food, Agriculture & Nutrition · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Old School Social Center Inc
EIN 462110632 · Headquarters: BLOOMFIELD, IA, USA · Community Improvement & Capacity Building · Latest available filing year: 2016 · Primary form: IRS Form 990