| Name | Address, Zip |
| Amvets Dba 41a Post | 511 Court St, 50579-1417 |
| Alive Community Church | 270 N Grant St, 50579-1118 |
| American Legion Auxiliary | 140 N 3rd St, 50579-1048 |
| American Federation Of State County & Municipal Employees | 507 Lake St, 50579-1407 |
| American Association Of University Women | 120 E Main St, 50579-1610 |
| American Legion | 120 Warner St, 50579-1720 |
| Earth Angel Rescue Services | 146 E Pleasant St, 50579-1614 |
| Iowa Whitetail Deer Association | Tom Stumpf 2045 270th Street, 50579 |
| Calhoun County Electric Cooperative Association | Po Box 312, 50579-0312 |
| Department Of Iowa Ladies Auxiliary To The Veterans Of Foreign Wars | 705 Tonawanda St, 50579-2021 |
| Golden Buckle Home Foundation | 500 East Lake St, 50579-1735 |
| Golden Buckle Home Inc | 500 East Lake Street, 50579-1735 |
| Iowa Farm Bureau Federation | Po Box 207, 50579-0207 |
| Calhoun County Expositions | Po Box 253, 50579-0253 |
| Friends Of Calhoun County Canine Shelter | 213 N Elm St, 50579-1123 |
| Calhoun County Economic Development Corporation | 501 Court St, 50579-1417 |
| Calhoun County Exposition | Po Box 253, 50579-0253 |
| Calhoun County Historical Society | 500 E Lake, 50579-1735 |
| Calvary Prayer Chapel | 103 Pleasant St, 50579-1530 |
| Carnegie Project | Po Box 251, 50579-0251 |
| Chicks With Checks Limited | 3034 Inwood Ave, 50579-7683 |
| St Paul Lutheran Church | 527 Main St, 50579-1421 |
| Immanuel Lutheran Church | 3010 270th St, 50579-7513 |
| Evangelical Free Church Of Rockwell City Iowa | 817 3rd St, 50579-2030 |
| Spirt Of Hope Church Inc | 333 Brower St, 50579-1703 |
| Rockwell City Mobile Meals Inc | Co Mary Hebert 808 Pleasant St, 50579 |
| Rockwell City Revitalization | 335 Main St, 50579-1536 |
| Rockwell City Public Library Foundation | 424 Main St, 50579-1419 |
| Rockwell City Enhancement Committee | 618 4th St, 50579-1904 |
| Knights Of Columbus | 851 Pleasant St, 50579-1207 |
| Hometown Heroes Memorial Ride | Po Box 91, 50579-0091 |
| Rotary International | Po Box 271, 50579-0271 |
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