| United States | Maryland | St. Mary's County | ||
|---|---|---|---|---|
| Total owner occupied | 2009 | 75320422 | 1455564 | 26699 |
| 2015 | 74712091 | 1447662 | 27650 | |
| % change | -0.8 | -0.5 | 3.6 | |
| Below 35 years age group | 2009 | 9171992 | 169005 | 4211 |
| 2015 | 7433016 | 135321 | 3237 | |
| % change | -19.0 | -19.9 | -23.1 | |
| 35 to 44 years age group | 2009 | 14800672 | 306847 | 5907 |
| 2015 | 12174546 | 241938 | 4891 | |
| % change | -17.7 | -21.2 | -17.2 | |
| 45 to 59 years age group | 2009 | 26106981 | 530654 | 9488 |
| 2015 | 25425668 | 533719 | 10419 | |
| % change | -2.6 | 0.6 | 9.8 | |
| Above 60 years age group | 2009 | 25240777 | 449058 | 7093 |
| 2015 | 29678861 | 536684 | 9103 | |
| % change | 17.6 | 19.5 | 28.3 |
Source: Gavop.com and Census Bureau