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Below is information on the population, racial profile, house hold count, and sex/age profiles for the city of Gillette. These results are gathered once every 10 years and may not be 100% accurate or up to date.
The population for Gillette, Wyoming is approximatly 19646.
Racial profile for Gillette:
| White : | 18762 |
| Black : | 39 |
| Native American : | 188 |
| Asian : | 82 |
| Pacific Islander : | 20 |
| Other : | 258 |
| * results may not accumulate to total population due to mixed race individuals | |
Population by age for males in Gillette, Wyoming :
| 18 - 19 : | 316 |
| 20 : | 155 |
| 21 : | 132 |
| 22 - 24 : | 475 |
| 25 - 29 : | 726 |
| 30 - 34 : | 616 |
| 35 - 39 : | 786 |
| 40 - 44 : | 1050 |
| 45 - 49 : | 884 |
| 50 - 54 : | 664 |
| 55 - 59 : | 386 |
| 60 - 61 : | 108 |
| 62 - 64 : | 144 |
| 65 - 66 : | 71 |
| 67 - 69 : | 103 |
| 70 - 74 : | 150 |
| 75 - 79 : | 84 |
| 80 - 84 : | 34 |
| 85+ : | 28 |
Population by age for females in Gillette, Wyoming :
| 18 - 19 : | 321 |
| 20 : | 141 |
| 21 : | 141 |
| 22 - 24 : | 414 |
| 25 - 29 : | 652 |
| 30 - 34 : | 542 |
| 35 - 39 : | 839 |
| 40 - 44 : | 1008 |
| 45 - 49 : | 839 |
| 50 - 54 : | 598 |
| 55 - 59 : | 348 |
| 60 - 61 : | 99 |
| 62 - 64 : | 142 |
| 65 - 66 : | 80 |
| 67 - 69 : | 108 |
| 70 - 74 : | 168 |
| 75 - 79 : | 143 |
| 80 - 84 : | 99 |
| 85+ : | 122 |
The total amount of households in Gillette, Wyoming is 7390. With 19340 people of the population in these households. The average household size is 2.62.
15970 people in Gillette, Wyoming are part of a family. The average family size in Gillette is 3.12 people.
There are 4155 married families in Gillette, Wyoming.
Number of married families by number of members in the family :
| 0 - 2 : | 610 | 3 - 4 : | 378 | 5 : | 198 | 6 - 11 : | 1379 | 12 - 17 : | 1590 |