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Below is information on the population, racial profile, house hold count, and sex/age profiles for the city of Petersburg. These results are gathered once every 10 years and may not be 100% accurate or up to date.
The population for Petersburg, Alaska is approximatly 3224.
Racial profile for Petersburg:
| White : | 2632 |
| Black : | 10 |
| Native American : | 232 |
| Asian : | 89 |
| Pacific Islander : | 6 |
| Other : | 60 |
| * results may not accumulate to total population due to mixed race individuals | |
Population by age for males in Petersburg, Alaska :
| 18 - 19 : | 30 |
| 20 : | 17 |
| 21 : | 14 |
| 22 - 24 : | 40 |
| 25 - 29 : | 92 |
| 30 - 34 : | 129 |
| 35 - 39 : | 119 |
| 40 - 44 : | 161 |
| 45 - 49 : | 164 |
| 50 - 54 : | 129 |
| 55 - 59 : | 95 |
| 60 - 61 : | 21 |
| 62 - 64 : | 28 |
| 65 - 66 : | 13 |
| 67 - 69 : | 17 |
| 70 - 74 : | 38 |
| 75 - 79 : | 36 |
| 80 - 84 : | 18 |
| 85+ : | 14 |
Population by age for females in Petersburg, Alaska :
| 18 - 19 : | 32 |
| 20 : | 7 |
| 21 : | 14 |
| 22 - 24 : | 45 |
| 25 - 29 : | 77 |
| 30 - 34 : | 114 |
| 35 - 39 : | 114 |
| 40 - 44 : | 181 |
| 45 - 49 : | 135 |
| 50 - 54 : | 114 |
| 55 - 59 : | 68 |
| 60 - 61 : | 18 |
| 62 - 64 : | 22 |
| 65 - 66 : | 8 |
| 67 - 69 : | 22 |
| 70 - 74 : | 36 |
| 75 - 79 : | 40 |
| 80 - 84 : | 22 |
| 85+ : | 19 |
The total amount of households in Petersburg, Alaska is 1240. With 3178 people of the population in these households. The average household size is 2.56.
2640 people in Petersburg, Alaska are part of a family. The average family size in Petersburg is 3.11 people.
There are 701 married families in Petersburg, Alaska.
Number of married families by number of members in the family :
| 0 - 2 : | 103 | 3 - 4 : | 65 | 5 : | 37 | 6 - 11 : | 225 | 12 - 17 : | 271 |