| Salem United Church of Christ | Alleman, Iowa | $2,756 |
| Urbandale United Church of Christ | Urbandale, Iowa | $2,439 |
| Saint Paul United Church of Christ | Kahoka, Missouri | $1,845 |
| Congregational United Church of Christ | Iowa City, Iowa | $1,581 |
| First Congregational Church | Waterloo, Iowa | $1,370 |
| United Church of Christ Congregational | Grinnell, Iowa | $1,222 |
| Hope United Church of Christ | Hiawatha, Iowa | $1,211 |
| Immanuel United Church of Christ | Latimer, Iowa | $952 |
| United Church of Christ Congregational | Ames, Iowa | $945 |
| United Church of Christ | Ankeny, Iowa | $891 |
| First Congregational Church | Cedar Rapids, Iowa | $867 |
| Faith United Church of Christ | Iowa City, Iowa | $787 |
| Faith United Church of Christ | Muscatine, Iowa | $724 |
| First Congregational Church | DeWitt, Iowa | $678 |
| Trinity United Church of Christ | Marengo, Iowa | $635 |
| Saint Paul's United Church of Christ | Madrid, Iowa | $570 |
| Zion United Church of Christ | Hubbard, Iowa | $555 |
| Community Congregational ?Church | Manchester, Iowa | $547 |
| First United Church of Christ Pleasant Valley | Clarksville, Iowa | $500 |
| Congregational United Church of Christ | Newton, Iowa | $433 |
| First Congregational Church | Riceville, Iowa | $362 |
| Edwards Congregational Church | Davenport, Iowa | $352 |
| First United Church of Christ | Marshalltown, Iowa | $351 |
| United Church of Christ | Central City, Iowa | $326 |
| Faith United Church of Christ | Tripoli, Iowa | $323 |
| Saint Peter's United Church of Christ | Geneva, Iowa | $295 |
| Mayflower Congregational Church | Sioux City, Iowa | $286 |
| Saint John's United Church of Christ | Clarence, Iowa | $276 |
| Saint John's United Church of Christ | Ackley, Iowa | $261 |
| Saint Paul's United Church of Christ | Donnellson, Iowa | $246 |
| First Congregational Church | Anamosa, Iowa | $244 |
| First Congregational United Church of Christ | Lake View, Iowa | $242 |
| Summit Congregational Church | Dubuque, Iowa | $232 |
| Saint John United Church of Christ | Melbourne, Iowa | $225 |
| Olds United Church of Christ | Olds, Iowa | $205 |
| Trinity United Church of Christ | Hartley, Iowa | $205 |
| Zion United Church of Christ | Waukon, Iowa | $201 |
| Congregational United Church of Christ | Decorah, Iowa | $200 |
| Congregational United Church of Christ | Baxter, Iowa | $198 |
| Congregational United Church of Christ | Cromwell, Iowa | $197 |
| St. Paul Congregational Church | Oskaloosa, Iowa | $170 |
| Saint Paul United Church of Christ | Denver, Iowa | $168 |
| First Congregational Church | Algona, Iowa | $165 |
| Congregational United Church of Christ | Farragut, Iowa | $160 |
| Immanuel United Church of Christ | Clarksville, Iowa | $160 |
| Denmark Congregational Church | Denmark, Iowa | $148 |
| Truro Congregational Christian Church | Truro, Iowa | $145 |
| Zion United Church of Christ | Burlington, Iowa | $145 |
| Congregational United Church of Christ | Rock Rapids, Iowa | $134 |
| Peace United Church of Christ | Fredericksburg, Iowa | $129 |
| Grace United Church of Christ | Wilton, Iowa | $126 |
| Congregational Church of Creston | Creston, Iowa | $126 |
| Peace United Church of Christ | Waverly, Iowa | $125 |
| United Church of Christ | Colwell, Iowa | $125 |
| Crossroads United Church of Christ | Indianola, Iowa | $118 |
| Peace United Church of Christ | Gladbrook, Iowa | $115 |
| Congregational United Church of Christ | Humboldt, Iowa | $114 |
| First Congregational Church | Charles City, Iowa | $108 |
| Community United C?hurch of Christ | Gilman, Iowa | $107 |
| Moscow-Trinity United Church of Christ | Moscow, Iowa | $107 |
| Salem Church of Lincoln | Lincoln, Iowa | $105 |
| Zion United Church of Christ | Lowden, Iowa | $105 |
| First Congregational Church | Newell, Iowa | $104 |
| Congregational United Church of Christ | Blairsburg, Iowa | $100 |
| Saint Paul United Church of Christ | Keokuk, Iowa | $92 |
| First Congregational Church | Glenwood, Iowa | $90 |
| Associated Church of Hawarden | Hawarden, Iowa | $87 |
| Congregational United Church of Christ | Danville, Iowa | $75 |
| First United Church of Christ | Tipton, Iowa | $75 |
| United Church of Christ Congregational | Belmond, Iowa | $75 |
| Salem United Church of Christ | Waukon, Iowa | $70 |
| Ripley United Church of Christ | Traer, Iowa | $60 |
| Saint John United Church of Christ | Fort Madison, Iowa | $56 |
| Saint Luke United Church of Christ | Burlington, Iowa | $56 |
| First United Church of Christ | Burlington, Iowa | $55 |
| Peace United Church of Christ | Elkader, Iowa | $55 |
| New Horizons United Church of Christ | Akron, Iowa | $50 |
| Congregational United Church of Christ | Clarion, Iowa | $40 |
| First Congregational Church | Whiting, Iowa | $40 |
| Saint Paul's United Church of Christ | Wheatland, Iowa | $40 |
| First Congregational Church | Clinton, Iowa | $31 |
| First Congregational Church | Mitchellville, Iowa | $30 |
| United Church of Christ | Eagle Grove, Iowa | $28 |