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Below is information on the population, racial profile, house hold count, and sex/age profiles for the city of Johnstown. These results are gathered once every 10 years and may not be 100% accurate or up to date.
The population for Johnstown, Colorado is approximatly 3827.
Racial profile for Johnstown:
| White : | 3261 |
| Black : | 5 |
| Native American : | 23 |
| Asian : | 13 |
| Pacific Islander : | 0 |
| Other : | 454 |
| * results may not accumulate to total population due to mixed race individuals | |
Population by age for males in Johnstown, Colorado :
| 18 - 19 : | 34 |
| 20 : | 11 |
| 21 : | 17 |
| 22 - 24 : | 66 |
| 25 - 29 : | 186 |
| 30 - 34 : | 164 |
| 35 - 39 : | 167 |
| 40 - 44 : | 158 |
| 45 - 49 : | 132 |
| 50 - 54 : | 109 |
| 55 - 59 : | 77 |
| 60 - 61 : | 30 |
| 62 - 64 : | 27 |
| 65 - 66 : | 20 |
| 67 - 69 : | 31 |
| 70 - 74 : | 31 |
| 75 - 79 : | 30 |
| 80 - 84 : | 13 |
| 85+ : | 9 |
Population by age for females in Johnstown, Colorado :
| 18 - 19 : | 34 |
| 20 : | 18 |
| 21 : | 14 |
| 22 - 24 : | 92 |
| 25 - 29 : | 172 |
| 30 - 34 : | 201 |
| 35 - 39 : | 159 |
| 40 - 44 : | 132 |
| 45 - 49 : | 129 |
| 50 - 54 : | 97 |
| 55 - 59 : | 94 |
| 60 - 61 : | 27 |
| 62 - 64 : | 29 |
| 65 - 66 : | 22 |
| 67 - 69 : | 24 |
| 70 - 74 : | 36 |
| 75 - 79 : | 32 |
| 80 - 84 : | 25 |
| 85+ : | 14 |
The total amount of households in Johnstown, Colorado is 1339. With 3827 people of the population in these households. The average household size is 2.86.
3382 people in Johnstown, Colorado are part of a family. The average family size in Johnstown is 3.21 people.
There are 913 married families in Johnstown, Colorado.
Number of married families by number of members in the family :
| 0 - 2 : | 199 | 3 - 4 : | 125 | 5 : | 57 | 6 - 11 : | 321 | 12 - 17 : | 211 |