| Name | Deductibility Code |
| Albaghdadi Family Medical Foundation | 4 |
| Allison Everett Pearson Foundation | 4 |
| Alverno Foundation | -- |
| Animal Birth Control Inc. | -- |
| Arch Inc. | -- |
| Art in the Park of Clinton Inc. | -- |
| Associate Benevolent Society | -- |
| Atalanta Foundation | 4 |
| Bargain Bonanza Inc. | -- |
| Bickelhaupt Arboretum | 3 |
| Big Brothers Big Sisters of Clinton Iowa Inc. 601 S 3rd St. | -- |
| Bridgeview Community Mental Health Center | -- |
| Calderon Mexican Christian Mission | -- |
| Catholic Historical Center at St. Boniface | -- |
| Charles J Dannatt Trust | -- |
| Christian Community Fellowship | -- |
| Citizen Police Academy Alumni of Clinton Iowa | -- |
| Clinton Area Association of the Hearing Impaired | -- |
| Clinton Area Development Foundation | -- |
| Clinton Area Showboat Theatre Inc. Showboat Riverfront Dr | -- |
| Clinton Art Association | -- |
| Clinton Church of Christ Clinton Iowa | -- |
| Clinton Citizens Coalition to Save Our Historic Catholic Churches | -- |
| Clinton Cobra Baseball Club | -- |
| Clinton Community School District Education Foundation | -- |
| Clinton County Courthouse Historical Foundation | -- |
| Clinton County Historical Society | -- |
| Clinton County Special Athletes | -- |
| Clinton Firemens Assoc | -- |
| Clinton High School A H Dall Scholarship Fund | 4 |
| Clinton High School Band Boosters Inc. | -- |
| Clinton Humane Society | -- |
| Clinton Jackson Coalition for the Homeless | -- |
| Clinton Jaycees Foundation | -- |
| Clinton Junior Baseball Foundation | -- |
| Clinton Kiwanis Club Foundation | -- |
| Clinton Lighthouse Christian Church | -- |
| Clinton Masonic Center Association Building Preservation Trust Inc. | -- |
| Clinton Reenactment Inc. | -- |
| Clinton Rescue Mission | -- |
| Clinton Substance Abuse Council Inc. | -- |
| Clinton Symphony Orchestra Association | -- |
| Clinton Trees Forever | -- |
| Curtis Mansion Historial Foundation | -- |
| Eagle Point Nature Society | -- |
| Edith Curtis Armstrong & Florence E | 4 |
| Edward A and Mary W Howes Foundation | 4 |
| Emergency K-9 Operations Inc. Search and Rescue | -- |
| Employee Mutual Benefit Association International Paper Clinton Plant | 6 |
| Ex-Mays Global Charity | -- |
| F I N D Inc. | -- |
| Felix Adler Memorial Association | -- |
| Friends of Riverview Park Inc. | -- |
| Friends of Riverview Stadium Inc. | -- |
| Friends of the Clinton Public Library | -- |
| Gateway Area Foundation | -- |
| Gateway Contemporary Ballet | -- |
| Gateway Masonic Association | -- |
| Genevieve Gabriel Tr | -- |
| Gladys A Dege Nursing Scholarship Fund | 4 |
| Grace I and Mary E Disbrow Scholarship Foundation | 4 |
| Greater True Love Missionary Baptist Church | -- |
| Islamic Society of Clinton County | -- |
| Ivan H Carnes Scholarship Fund Clinton Natl Bank Ttee | 4 |
| James K and Pauline C Durgin Foundation | 4 |
| Lyons District Foundation | -- |
| Martha Seeser Verfaillie Trust | 4 |
| Mercy Auxiliary-Clinton | -- |
| Mercy Healthcare Foundation Clinton | -- |
| Midwest Lumber Museum Inc. | -- |
| Mobile Meals United Inc. | -- |
| Mvga Booster Club Inc. | -- |
| Nami Clinton Countys Voice on Mental Illness | -- |
| New Life Crisis Pregnancy Center Inc. | -- |
| North Central Regional Association of Assessing Officers Inc. | -- |
| Partnership Way | 4 |
| Pathway Living Center Inc. | -- |
| Paul B Sharar Foundation for Clinton Campus | -- |
| Pep-Partners of Exceptional Persons of Clinton County | -- |
| Pine Grove Cemetery Association | 6 |
| Prince of Peace School Foundation | -- |
| Quality Surgicenter Charitable Foundation | 4 |
| Rasheed Family Foundation | 4 |
| Regina J Gill Scholarship Fund | 4 |
| River Cities American Arts Council | -- |
| River Cities Information Referral and Assistance Services | -- |
| River City Municipal Band Inc. | -- |
| River King & Queen Athletic Booster Club | -- |
| Sarah Harding Home for the Aged Inc. | -- |
| Second Missionary Baptist Church of Clinton Iowa | -- |
| Skyline Center Inc. | -- |
| Skyline Foundation Inc. | -- |
| Skyline Residential Services Inc. | -- |
| Springdale Cemetery Company | 6 |
| Tarsus Charitable Foundation | 4 |
| Third Coast Art Center | -- |
| Todd Stone Memorial Scholarship Fund Inc. | -- |
| Trinity Baptist Church of Clinton Iowa | -- |
| United Way of Clinton County Iowa | -- |
| Victory Center Ministries Inc. | -- |
| Wait Inc. | -- |
| Womens Health Services of Eastern Iowa Inc. | -- |
| Young Mens Christian Association of | -- |
| Young Womens Christian Association | -- |