| Region | Population of 2006 NIS States | Estimated U.S. Population |
|---|---|---|
| Northeast | 40,872,445 (74.9%) | 54,590,721 |
| Midwest | 65,491,023 (99.0%) | 66,128,483 |
| South | 95,723,736 (87.9%) | 108,894,582 |
| West | 63,598,400 (92.0%) | 69,141,582 |
| United States | 265,685,604 (88.9%) | 298,754,819 |