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Below is information on the population, racial profile, house hold count, and sex/age profiles for the city of Port Jefferson. These results are gathered once every 10 years and may not be 100% accurate or up to date.
The population for Port Jefferson, New York is approximatly 7837.
Racial profile for Port Jefferson:
| White : | 7208 |
| Black : | 131 |
| Native American : | 3 |
| Asian : | 261 |
| Pacific Islander : | 0 |
| Other : | 133 |
| * results may not accumulate to total population due to mixed race individuals | |
Population by age for males in Port Jefferson, New York :
| 18 - 19 : | 83 |
| 20 : | 36 |
| 21 : | 35 |
| 22 - 24 : | 144 |
| 25 - 29 : | 275 |
| 30 - 34 : | 289 |
| 35 - 39 : | 305 |
| 40 - 44 : | 290 |
| 45 - 49 : | 255 |
| 50 - 54 : | 321 |
| 55 - 59 : | 269 |
| 60 - 61 : | 85 |
| 62 - 64 : | 128 |
| 65 - 66 : | 77 |
| 67 - 69 : | 87 |
| 70 - 74 : | 127 |
| 75 - 79 : | 84 |
| 80 - 84 : | 40 |
| 85+ : | 48 |
Population by age for females in Port Jefferson, New York :
| 18 - 19 : | 67 |
| 20 : | 29 |
| 21 : | 30 |
| 22 - 24 : | 121 |
| 25 - 29 : | 267 |
| 30 - 34 : | 270 |
| 35 - 39 : | 336 |
| 40 - 44 : | 265 |
| 45 - 49 : | 316 |
| 50 - 54 : | 375 |
| 55 - 59 : | 320 |
| 60 - 61 : | 83 |
| 62 - 64 : | 115 |
| 65 - 66 : | 49 |
| 67 - 69 : | 100 |
| 70 - 74 : | 131 |
| 75 - 79 : | 108 |
| 80 - 84 : | 115 |
| 85+ : | 191 |
The total amount of households in Port Jefferson, New York is 2985. With 7299 people of the population in these households. The average household size is 2.45.
5871 people in Port Jefferson, New York are part of a family. The average family size in Port Jefferson is 2.96 people.
There are 1182 married families in Port Jefferson, New York.
Number of married families by number of members in the family :
| 0 - 2 : | 223 | 3 - 4 : | 124 | 5 : | 74 | 6 - 11 : | 395 | 12 - 17 : | 366 |