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The Northeastern United States, or simply the Northeast, is a geographical region of the United States bounded to the north by Canada, to the east by the Atlantic Ocean, to the south by the Southern United States, and to the west by the Midwestern United States. The Northeast is one of the four regions defined by the Census Bureau for the collection and analysis of statistics.〔(【引用サイトリンク】title=Census Regions and Divisions of the United States )〕 The Census Bureau-defined region has a total area of with of that being land mass.〔(【引用サイトリンク】publisher=U.S. Census Bureau )〕 Though lacking a unified cultural identity, the Northeastern region is the nation's most economically developed, densely populated, and culturally diverse.〔 Of the nation's four census regions, the Northeast is the second most urban, with 85 percent of its population residing within urban areas, led by the West with 90 percent. ==Composition== The Census Bureau has defined the Northeast region as comprising nine states: the New England states of Connecticut, Maine, Massachusetts, New Hampshire, Rhode Island, and Vermont; and the Mid-Atlantic states of New Jersey, New York, and Pennsylvania.〔 This definition has been essentially unchanged since 1880, and is widely used as a standard for data tabulation. The Census Bureau has acknowledged the limitations of this definition and the potential merits of a proposal created after the 1950 census that would include changing regional boundaries to include Delaware, Maryland, and Washington, D.C. with the Mid-Atlantic states, but ultimately decided that "the new system did not win enough overall acceptance among data users to warrant adoption as an official new set of general-purpose State groupings. The previous development of many series of statistics, arranged and issued over long periods of time on the basis of the existing State groupings, favored the retention of the summary units of the current regions and divisions." The Census Bureau confirmed in 1994 that it would continue to "review the components of the regions and divisions to ensure that they continue to represent the most useful combinations of States and State equivalents."〔 Many organizations and reference works follow the Census Bureau's definition for the region, however, other entities define the Northeastern United States in significantly different ways for various purposes. The Association of American Geographers divides the Northeast into two divisions- "New England", which consists of Maine, Vermont, New Hampshire, Massachusetts, Rhode Island and Connecticut, and "Middle States", which consists of New York, Pennsylvania, New Jersey, and Delaware.〔(【引用サイトリンク】title=Overview - AAG )〕 Similarly, the Geological Society of America defines the Northeast as these same states but with the addition of Maryland and the District of Columbia.〔(【引用サイトリンク】title=Geological Society of America - Northeastern Section )〕 The narrowest definitions include only the states of New England.〔(【引用サイトリンク】title=NROC Overview )〕 Other more restrictive definitions include New England and New York as part of the Northeast United States, but exclude Pennsylvania and New Jersey.〔(【引用サイトリンク】title=Safety: ORA District and Headquarters Recall Coordinators )〕〔(【引用サイトリンク】 title=About The Council )〕 States beyond the Census Bureau definition that other entities include in the Northeast United States are: * *Delaware, Maryland, and Washington, D.C.〔〔(【引用サイトリンク】url=http://www.nrc.gov/info-finder/region-state/region1.html )〕 * *Delaware, Maryland, Washington, D.C., and West Virginia〔(【引用サイトリンク】url=http://water.epa.gov/scitech/climatechange/Northeast-Climate-Region.cfm )〕〔(【引用サイトリンク】url=http://www.nrcc.cornell.edu/index.html )〕 * *Delaware, Maryland, Washington, D.C., West Virginia, and Virginia〔(【引用サイトリンク】url=http://www.fws.gov/northeast/ )〕 * *Delaware, and parts of Maryland, West Virginia, and Virginia (but excluding Washington, D.C. and surrounding area)〔(【引用サイトリンク】url=http://www.nps.gov/gis/documents/nps_regions_11x8-5-new.pdf )〕 * *Ohio〔(【引用サイトリンク】title=Northeast Region Locations )〕 * *West Virginia, Ohio, Indiana, and Michigan 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Northeastern United States」の詳細全文を読む スポンサード リンク
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