| Gillette City Guide & Data | |
|---|---|
| Population (2009 est.) | 28,726 |
| Population (2000) | 19,682 |
| Population growth | 46.0% |
| Household income | $66,990 |
| Income per capita | $28,439 |
| Male/Female ratio | 1.03:1 |
| Males 18-39 years | 32.9% |
| Females 18-39 years | 31.4% |
| Married (15yrs and older) | 59.1% |
| Have children (under 18yrs) | 59.6% |