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Connecticut is the southernmost state in the New England region of the Northeastern United States. As of the 2020 United States census, Connecticut was home to over 3.6 million residents, its highest decennial count count ever, growing every decade since 1790. The state is bordered by Rhode Island to its east, Massachusetts to its north, New York to its west, and Long Island Sound to its south. Its capital is Hartford, and its most populous city is Bridgeport. Historically, the state is part of New England as well as the tri-state area with New York and New Jersey. The state is named for the Connecticut River which approximately bisects the state. The word "Connecticut" is derived from various anglicized spellings of "Quinnetuket”, a Mohegan-Pequot word for "long tidal river".

Delaware is a state in the Mid-Atlantic region of the United States, bordering Maryland to its south and west; Pennsylvania to its north; and New Jersey and the Atlantic Ocean to its east. The state takes its name from the adjacent Delaware Bay, in turn named after Thomas West, 3rd Baron De La Warr, an English nobleman and Virginia's first colonial governor.

Illinois is a state in the Midwestern United States. It shares borders with Wisconsin to its north, Iowa to its northwest, Missouri to its southwest, Kentucky to its south, and Indiana to its east. Its largest metropolitan areas include the Chicago metropolitan area, and the Metro East section, of Greater St. Louis. Other metropolitan areas include Peoria and Rockford, as well as Springfield, its capital. Of the fifty U.S. states, Illinois has the fifth-largest gross domestic product (GDP), the sixth-largest population, and the 25th-largest land area.

Indiana is a U.S. state in the Midwestern United States. It is the 38th-largest by area and the 17th-most populous of the 50 States. Its capital and largest city is Indianapolis. Indiana was admitted to the United States as the 19th state on December 11, 1816. It is bordered by Lake Michigan to the northwest, Michigan to the north and northeast, Ohio to the east, the Ohio River and Kentucky to the south and southeast, and the Wabash River and Illinois to the west.

Maryland is a state in the Mid-Atlantic region of the United States. It borders Virginia, West Virginia, and the District of Columbia to its south and west; Pennsylvania to its north; and Delaware and the Atlantic Ocean to its east. With a total land area of 12,407 square miles (32,130 km2), Maryland is the 8th smallest state by land area, but with a population of over 6,177,200, it ranks as the 18th most populous state and the 5th most densely populated. Baltimore is the largest city in the state, and the capital is Annapolis. Among its occasional nicknames are Old Line State, the Free State, and the Chesapeake Bay State. It is named after Henrietta Maria, the French-born queen of England, Scotland, and Ireland, who was known then in England as Mary.

Massachusetts, officially the Commonwealth of Massachusetts, is the most populous state in the New England region of the Northeastern United States, exceeding 7 million residents at the 2020 United States census, its highest decennial count ever. The state borders the Atlantic Ocean and Gulf of Maine to its east, Connecticut and Rhode Island to its south, New Hampshire and Vermont to its north, and New York to its west. Massachusetts is the 6th smallest state by land area but is the 15th most populous state and the 3rd most densely populated, after New Jersey and Rhode Island. The state's capital and most populous city, as well as its cultural and financial center, is Boston. Massachusetts is also home to the urban core of Greater Boston, the largest metropolitan area in New England and a region profoundly influential upon American history, academia, and the research economy. Originally dependent on agriculture, fishing, and trade, Massachusetts was transformed into a manufacturing center during the Industrial Revolution. During the 20th century, Massachusetts's economy shifted from manufacturing to services. Modern Massachusetts is a global leader in biotechnology, engineering, higher education, finance, and maritime trade.

New Jersey is the most densely populated U.S. state. A coastal state, New Jersey is situated at the center of the Northeast megalopolis, the most populous American urban agglomeration. The state lies within both the Mid-Atlantic and Northeastern regions of the United States. New Jersey is bordered on its north and east by the state of New York; on its east, southeast, and south by the Atlantic Ocean; on its west by the Delaware River and Pennsylvania; and on its southwest by Delaware Bay and the state of Delaware. At 7,354 square miles (19,050 km2), New Jersey is the fifth-smallest state in land area, but with close to 9.3 million residents as of the 2020 United States census, its highest decennial count ever, ranks 11th in population. The state capital is Trenton, and the most populous city is Newark. New Jersey is the only U.S. state in which every county is deemed urban by the U.S. Census Bureau, with 13 counties included in the New York metropolitan area, seven counties in the Philadelphia metropolitan area, and with Warren County constituting part of the rapidly industrializing Lehigh Valley metropolitan area.

Michigan is a state in the Great Lakes region of the upper Midwestern United States. It is bordered by Minnesota to the northwest, Wisconsin to the southwest, Indiana and Ohio to the south, and Lakes Superior, Huron, and Erie to the north and east. With a population of nearly 10.12 million and an area of nearly 97,000 sq mi (250,000 km2), Michigan is the 10th-largest state by population, the 11th-largest by area, and the largest by area east of the Mississippi River. Its capital is Lansing, and its largest city is Detroit. Metro Detroit is among the nation's most populous and largest metropolitan economies. Its name derives from a gallicized variant of the original Ojibwe word ᒥᓯᑲᒥ, meaning "large water" or "large lake".

Maine is the easternmost state in the New England region of the Northeastern United States. It borders New Hampshire to the west, the Gulf of Maine to the southeast, and the Canadian provinces of New Brunswick and Quebec to the northeast and northwest, respectively. The largest state by total area in New England, Maine is the 12th-smallest by area, the 9th-least populous, the 13th-least densely populated, and the most rural of the 50 U.S. states. It is also the northeasternmost among the contiguous United States, the northernmost state east of the Great Lakes, the only state whose name consists of a single syllable, and the only state to border exactly one other U.S. state. Approximately half the area of Maine lies on each side of the 45th parallel north in latitude. The most populous city in Maine is Portland, while its capital is Augusta.

New Hampshire is a state in the New England region of the Northeastern United States. It is bordered by Massachusetts to the south, Vermont to the west, Maine and the Gulf of Maine to the east, and the Canadian province of Quebec to the north. Of the 50 U.S. states, New Hampshire is the fifth smallest by area and the tenth least populous, with slightly more than 1.3 million residents as of the 2020 census. Concord is the state capital, while Manchester is the largest city. New Hampshire's motto, "Live Free or Die", reflects its role in the American Revolutionary War; its nickname, "The Granite State", refers to its extensive granite formations and quarries. It is well known nationwide for holding the first primary in the U.S. presidential election cycle, and for its resulting influence on American electoral politics.

New York, often called New York state to distinguish it from its largest city, New York City, is a state in the Northeastern United States. With 20.2 million people enumerated at the 2020 United States census, its highest decennial count ever, it is the fourth-most populous state in the United States as of 2021, approximately 44% of the state's population lives in New York City, including 25% in the boroughs of Brooklyn and Queens; and 15% of the state's population is on the remainder of Long Island, the most populous island in the United States. With a total area of 54,556 square miles (141,300 km2), New York is the 27th-largest U.S. state by area. The state is bordered by New Jersey and Pennsylvania to its south, and Connecticut, Massachusetts, and Vermont to its east; it shares a maritime border with Rhode Island, east of Long Island; and an international border with the Canadian provinces of Quebec to its north and Ontario to its northwest.

California is a state in the Western United States, located along the Pacific Coast. With nearly 39.2 million residents across a total area of approximately 163,696 square miles (423,970 km2), it is the most populous U.S. state and the third-largest by area. It is also the most populated subnational entity in North America and the 34th most populous in the world. The Greater Los Angeles and San Francisco Bay areas are the nation's second and fifth most populous urban regions respectively, with the former having more than 18.7 million residents and the latter having over 9.6 million. Sacramento is the state's capital, while Los Angeles is the most populous city in the state and the second most populous city in the country. San Francisco is the second most densely populated major city in the country. Los Angeles County is the country's most populous, while San Bernardino County is the largest county by area in the country. California borders Oregon to the north, Nevada and Arizona to the east, the Mexican state of Baja California to the south; and it has a coastline along the Pacific Ocean to the west.