| Agency | Area(s) Served | Phone |
| Babylon Housing Authority P.O. Box 2791 N. Babylon, NY 11703 |
Town of Babylon | 893-1040 |
| Town of Brookhaven Dept.of Housing, Intergovernmental Affairs and Community Development 3233 Route 112 Medford, NY 11763 |
Town of Brookhaven | 451-6600 |
| Greenport Community Development | Village of Greenport | 477-2391 |
| Northfork Housing Alliance 18 South Street Greenport, NY 11944 |
Town of Southold | 477-1070 |
| Huntington Housing Authority 1-A Lowndes Avenue Huntington Station, NY 11746 |
Town of Huntington | 427-6220 |
| Islip Housing Authority 963 Montauk Highway Oakdale, NY 11769 |
Town of Islip | 589-7100 |
| Patchogue Community Development Agency 14 Baker Street P.O. Box 719 Patchogue, NY 11772 |
Village of Patchogue | 475-8851 |
| Riverhead Community Development 542 E. Main Street Riverhead, NY 11901 |
Town of Riverhead | 722-8701 |
| Smithtown Community Development P.O. Box 575 Smithtown, NY 11787 |
Town of Smithtown | 360-7587 |
| Southhampton Community Development Hampton Road Southampton, NY 11968 |
Town of Southampton | 283-6000 EXT. 251 |
| Community Development Corp .2100 Middle Country Road Suite 300 Centereach, NY 11720 |
Suffolk County | 471-1215 |