| Percentage of residents living in poverty | Proportion of African–American residents >50% | Proportion of white residents >50% |
| Low poverty rate (<10%) | 30 | 30 |
| Medium poverty rate (10–19%) | 30 | 30 |
| High poverty rate (⩾20%) | 60* | 30 |
*The number of block groups considered African–American, high poverty is higher because a majority of Garden of Eden participants resided in these block groups and we wanted to ensure the capture of most of the block groups with Garden of Eden participants.