| United States | Illinois | Mercer County | ||
|---|---|---|---|---|
| Total owner occupied | 2009 | 75320422 | 3292685 | 5444 |
| 2015 | 74712091 | 3177705 | 5159 | |
| % change | -0.8 | -3.5 | -5.2 | |
| Below 35 years age group | 2009 | 9171992 | 438718 | 669 |
| 2015 | 7433016 | 334054 | 463 | |
| % change | -19.0 | -23.9 | -30.8 | |
| 35 to 44 years age group | 2009 | 14800672 | 680098 | 890 |
| 2015 | 12174546 | 549413 | 827 | |
| % change | -17.7 | -19.2 | -7.1 | |
| 45 to 59 years age group | 2009 | 26106981 | 1129891 | 1826 |
| 2015 | 25425668 | 1094993 | 1585 | |
| % change | -2.6 | -3.1 | -13.2 | |
| Above 60 years age group | 2009 | 25240777 | 1043978 | 2059 |
| 2015 | 29678861 | 1199245 | 2284 | |
| % change | 17.6 | 14.9 | 10.9 |
Source: Gavop.com and Census Bureau