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. Author manuscript; available in PMC: 2012 Oct 1.
Published in final edited form as: J Am Geriatr Soc. 2011 Sep 13;59(10):1823–1828. doi: 10.1111/j.1532-5415.2011.03598.x

APPENDIX Table A1.

US Census Bureau Divisions

Division 1: New England: Connecticut, Maine, Massachusetts, New Hampshire, Rhode Island, Vermont
Division 2: Middle Atlantic: New Jersey, New York, Pennsylvania
Division 3: East North Central Illinois, Indiana, Michigan, Ohio, Wisconsin
Division 4: West North Central Iowa, Kansas, Minnesota, Missouri, Nebraska, North Dakota, South Dakota
Division 5: South Atlantic Delaware, District of Columbia, Florida, Georgia, Maryland, North Carolina, South Carolina, Virginia, West Virginia
Division 6: East South Central Alabama, Kentucky, Mississippi, Tennessee
Division 7: West South Central Arkansas, Louisiana, Oklahoma, Texas
Division 8: Mountain Arizona, Colorado, Idaho, Montana, Nevada, New Mexico, Utah, Wyoming
Division 9: Pacific Alaska, California, Hawaii Oregon, Washington