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Below is information on the population, racial profile, house hold count, and sex/age profiles for the city of Johnston. These results are gathered once every 10 years and may not be 100% accurate or up to date.
The population for Johnston, South Carolina is approximatly 2336.
Racial profile for Johnston:
| White : | 839 |
| Black : | 1463 |
| Native American : | 6 |
| Asian : | 3 |
| Pacific Islander : | 0 |
| Other : | 9 |
| * results may not accumulate to total population due to mixed race individuals | |
Population by age for males in Johnston, South Carolina :
| 18 - 19 : | 41 |
| 20 : | 15 |
| 21 : | 20 |
| 22 - 24 : | 42 |
| 25 - 29 : | 54 |
| 30 - 34 : | 66 |
| 35 - 39 : | 72 |
| 40 - 44 : | 91 |
| 45 - 49 : | 78 |
| 50 - 54 : | 62 |
| 55 - 59 : | 58 |
| 60 - 61 : | 23 |
| 62 - 64 : | 14 |
| 65 - 66 : | 13 |
| 67 - 69 : | 20 |
| 70 - 74 : | 29 |
| 75 - 79 : | 40 |
| 80 - 84 : | 23 |
| 85+ : | 7 |
Population by age for females in Johnston, South Carolina :
| 18 - 19 : | 36 |
| 20 : | 12 |
| 21 : | 11 |
| 22 - 24 : | 42 |
| 25 - 29 : | 54 |
| 30 - 34 : | 91 |
| 35 - 39 : | 93 |
| 40 - 44 : | 103 |
| 45 - 49 : | 76 |
| 50 - 54 : | 84 |
| 55 - 59 : | 59 |
| 60 - 61 : | 18 |
| 62 - 64 : | 33 |
| 65 - 66 : | 25 |
| 67 - 69 : | 36 |
| 70 - 74 : | 55 |
| 75 - 79 : | 52 |
| 80 - 84 : | 30 |
| 85+ : | 26 |
The total amount of households in Johnston, South Carolina is 923. With 2336 people of the population in these households. The average household size is 2.53.
1981 people in Johnston, South Carolina are part of a family. The average family size in Johnston is 3.12 people.
There are 294 married families in Johnston, South Carolina.
Number of married families by number of members in the family :
| 0 - 2 : | 45 | 3 - 4 : | 27 | 5 : | 22 | 6 - 11 : | 97 | 12 - 17 : | 103 |