| United States | Nebraska | Rock County | ||
|---|---|---|---|---|
| Total owner occupied | 2009 | 75320422 | 476856 | 558 |
| 2015 | 74712091 | 487948 | 518 | |
| % change | -0.8 | 2.3 | -7.2 | |
| Below 35 years age group | 2009 | 9171992 | 67538 | 31 |
| 2015 | 7433016 | 66304 | 34 | |
| % change | -19.0 | -1.8 | 9.7 | |
| 35 to 44 years age group | 2009 | 14800672 | 87787 | 39 |
| 2015 | 12174546 | 79862 | 51 | |
| % change | -17.7 | -9.0 | 30.8 | |
| 45 to 59 years age group | 2009 | 26106981 | 162861 | 249 |
| 2015 | 25425668 | 157459 | 165 | |
| % change | -2.6 | -3.3 | -33.7 | |
| Above 60 years age group | 2009 | 25240777 | 158670 | 239 |
| 2015 | 29678861 | 184323 | 268 | |
| % change | 17.6 | 16.2 | 12.1 |
Source: Gavop.com and Census Bureau