Great Lakes Megalopolis Population centers Population centers

| Area | State_Province | CSA_CMA_2009_population | Projected_2025_population | Projected_increase_2009_2025 |
|---|---|---|---|---|
| Rochester | NY | 1149653 | 1078600 | -71053 |
| Dayton | OH | 1066261 | 1066261 | 0 |
| Hamilton | ON | 740200 | 954858 | 214658 |
| Toledo | OH-MI | 672220 | 672220 | 0 |
| Madison | WI | 628947 | 820483 | 191563 |
| South Bend-Mishawaka-Elkhart | IN-MI | 564943 | NA | NA |
| Lansing | MI | 523609 | 547325 | 23716 |
| Kitchener – Waterloo | ON | 492400 | 635196 | 142796 |
| London | ON | 492200 | 634938 | 142738 |
| Rockford | IL | 455595 | 499400 | 43805 |
| Fort Wayne | IN | 414315 | 414315 | 0 |
| St. Catharines – Niagara | ON | 404400 | 521676 | 117276 |
| Davenport-Rock Island-Moline | IA-IL | 379690 | 452565 | 72875 |
| Fox Cities | WI | 360000 | NA | NA |
| Oshawa | ON | 356177 | 419067 | 62890 |
| Windsor | ON | 330900 | 426861 | 95961 |
| Green Bay | WI | 304783 | NA | NA |
| Erie | PA | 280985 | N/A | N/A |
| Duluth-Superior | MN-WI | 279771 | N/A | N/A |
| Total CSA/CMA of major metro areas | US-Canada | 59781623 | 65735336 | 6234698 |