| Statistic | Saint Joseph | Louisville | Kentucky |
| Population | 3,395 | 618,733 | 4,467,673 |
| Population density (sq mi) | 2,881 | 2,351 | 114 |
| Median age | 39.7 | 37.7 | 38.6 |
| Male/Female ratio | 0.9:1 | 0.9:1 | 1.0:1 |
| Married (15yrs & older) | n/a | 50% | 58% |
| Families w/ Kids under 18 | 18% | 42% | 42% |
| Speak English | n/a | 90% | 95% |
| Speak Spanish | n/a | 5% | 3% |


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| Race | Saint Joseph | Louisville | Kentucky |
| White | 81.13% | 68.35% | 87.48% |
| Black | 9.89% | 24.02% | 7.94% |
| Asian | 4.29% | 2.67% | 1.29% |
| American Indian | 0.65% | 0.12% | 0.21% |
| Native Hawaiian | 0.00% | 0.07% | 0.06% |
| Mixed race | 1.04% | 3.48% | 2.10% |
| Other race | 3.00% | 1.29% | 0.92% |