| 1 | Sanborn CDP (southeast) | 6,993 |
| 2 | Newfane CDP (south-southwest) | 6,748 |
| 3 | Newfane CDP (north-northeast) | 6,634 |
| 4 | Gasport CDP (north-northeast) | 5,821 |
| 5 | Sanborn CDP (north 2) | 5,730 |
| 6 | Niagara University CDP (southeast 2) | 5,672 |
| 7 | Ransomville CDP (south-southwest) | 5,497 |
| 8 | Sanborn CDP (southwest) | 5,343 |
| 9 | Rapids CDP (south-southeast) | 5,005 |
| 10 | North Tonawanda city (north 2) | 4,560 |
| 11 | Gasport CDP (west-northwest) | 4,523 |
| 12 | Rapids CDP (north) | 4,466 |
| 13 | Sanborn CDP (north 1) | 4,434 |
| 14 | Rapids CDP (southwest) | 4,239 |
| 15 | North Tonawanda city (northwest 1) | 4,222 |
| 16 | Niagara University CDP (north-northwest) | 4,210 |
| 17 | Lockport city (west) | 4,147 |
| 18 | Lockport city (south) | 4,058 |
| 19 | Ransomville CDP (southwest) | 3,945 |
| 20 | Niagara University CDP (north) | 3,604 |
| 21 | Barker village (south) | 3,591 |
| 22 | Niagara Falls city (east-southeast 2) | 3,585 |
| 23 | North Tonawanda city (southeast 2) | 3,579 |
| 24 | Niagara Falls city (east-southeast 1) | 3,542 |
| 25 | Niagara University CDP (west 1) | 3,516 |
| 26 | North Tonawanda city (east-northeast 1) | 3,439 |
| 27 | North Tonawanda city (north 1) | 3,408 |
| 28 | North Tonawanda city (east-northeast 2) | 3,404 |
| 29 | Sanborn CDP (south) | 3,370 |
| 30 | Lockport city (east-northeast) | 3,335 |
| 31 | Niagara Falls city (south-southeast 2) | 3,278 |
| 32 | Barker village (north) | 3,072 |
| 33 | North Tonawanda city (southeast 1) | 3,048 |
| 34 | North Tonawanda city (south 2) | 2,977 |
| 35 | Niagara Falls city (north-northwest 3) | 2,818 |
| 36 | Niagara University CDP (west 2) | 2,756 |
| 37 | Niagara Falls city (north-northwest 2) | 2,705 |
| 38 | Lockport city (north-northeast) | 2,639 |
| 39 | Olcott CDP | 2,629 |
| 40 | Niagara University CDP (southeast 1) | 2,616 |
| 41 | North Tonawanda city (northwest 2) | 2,589 |
| 42 | Youngstown village | 2,538 |
| 43 | Lewiston village | 2,527 |
| 44 | Niagara University CDP (south-southeast 1) | 2,438 |
| 45 | Niagara Falls city (west-northwest 2) | 2,291 |
| 46 | North Tonawanda city (south-southwest) | 2,253 |
| 47 | North Tonawanda city (south 1) | 2,249 |
| 48 | North Tonawanda city (west) | 2,240 |
| 49 | Niagara Falls city (south-southeast 1) | 2,239 |
| 50 | Niagara University CDP (east) | 2,208 |
| 51 | Niagara Falls city (west-southwest 3) | 2,190 |
| 52 | Niagara University CDP (northwest) | 2,170 |
| 53 | Niagara University CDP (south) | 2,131 |
| 54 | Lockport city (southeast) | 2,054 |
| 55 | Niagara Falls city (northeast) | 2,032 |
| 56 | Middleport village | 1,931 |
| 57 | Niagara Falls city (west-southwest 2) | 1,914 |
| 58 | Niagara University CDP (south-southeast 2) | 1,898 |
| 59 | Niagara Falls city (west-northwest 1) | 1,896 |
| 60 | Niagara Falls city (west-southwest 1) | 1,575 |
| 61 | Niagara Falls city (north-northwest 1) | 1,441 |
| 62 | Wilson village | 1,385 |
| 63 | Niagara Falls city (northwest) | 1,337 |
| 64 | Niagara University CDP (north-northeast) | 657 |