How to Partition the USA

Make Alaksa and Puerto Rico independent. Attach all the Pacific territories to Hawaii. Group the states (and DC) as below.

Division States Population GDP GDP per capita
Northeast Connecticut, Maine, Massachusetts, New Hampshire, Rhode Island, Vermont, New York, New Jersey, Pennsylvania, District of Columbia, Maryland, Delaware 61 792 086 3 087 080 000 000 49 959
Atlantic Florida, Georgia, North Carolina, South Carolina, Virginia, West Virginia, Ohio 61 570 943 2 503 014 000 000 40 653
Midwest Montana, Wyoming, Colorado, Kansas, Nebraska, South Dakota, North Dakota, Idaho, Minnesota, Wisconsin, Illinois, Iowa, Indiana, Michigan 56 576 495 2 403 644 000 000 42 485
South Texas, New Mexico, Oklahoma, Louisiana, Arkansas, Alabama, Tennessee, Mississippi, Kentucky, Missouri 59 737 394 2 416 085 000 000 40 445
Pacific California, Oregon, Washington, Nevada, Arizona, Utah, Hawaii 59 051 513 2 679 105 000 000 45 369

Comes out surprisingly even, really.