Identifiers: city · CDP
| Rank | Community | Population |
|---|---|---|
| 1 | Stamford (city), CT | 135,470 |
| 2 | Greenwich (CDP), CT | 13,836 |
| 3 | Riverside (CDP), CT | 8,843 |
| 4 | Old Greenwich (CDP), CT | 6,962 |
| 5 | Cos Cob (CDP), CT | 6,873 |
| 6 | New Canaan (CDP), CT | 6,220 |
| 7 | Noroton (CDP), CT | 5,317 |
| 8 | Byram (CDP), CT | 4,493 |
| 9 | Pemberwick (CDP), CT | 3,899 |
| 10 | Noroton Heights (CDP), CT | 3,116 |
| 11 | Glenville (CDP), CT | 2,762 |
| 12 | Darien Downtown (CDP), CT | 1,147 |
| 13 | Indian Field (CDP), CT | 705 |
| 14 | Rock Ridge (CDP), CT | 658 |
Identifiers: city · CDP · village
| Rank | Community | Population |
|---|---|---|
| 1 | Yonkers (city), NY | 211,569 |
| 2 | New Rochelle (city), NY | 79,726 |
| 3 | Mount Vernon (city), NY | 73,893 |
| 4 | White Plains (city), NY | 59,559 |
| 5 | New City (CDP), NY | 34,135 |
| 6 | Spring Valley (village), NY | 33,066 |
| 7 | Port Chester (village), NY | 31,693 |
| 8 | Harrison (village), NY | 28,218 |
| 9 | Ossining (village), NY | 27,551 |
| 10 | Monsey (CDP), NY | 26,954 |
| 11 | Peekskill (city), NY | 25,431 |
| 12 | Eastchester (CDP), NY | 20,901 |
| 13 | Mamaroneck (village), NY | 20,151 |
| 14 | Nanuet (CDP), NY | 18,886 |
| 15 | Scarsdale (village), NY | 18,253 |
| 16 | Rye (city), NY | 16,592 |
| 17 | Pearl River (CDP), NY | 16,567 |
| 18 | Jefferson Valley-Yorktown (CDP), NY | 14,444 |
| 19 | Stony Point (CDP), NY | 12,126 |
| 20 | Tarrytown (village), NY | 11,860 |