Map of Mid-Atlantic States - Division of Northeastern US

Written and fact-checked by | Updated On: January 19, 2026, 07:10 AM ET

The Mid-Atlantic region, is one of the nine Census Bureau Divisions of the United States.

Map of Mid-Atlantic USA States

Map of Mid-Atlantic States, USA About Map - Map showing Mid-Atlantic United States.

The Mid-Atlanticern United States consists of three states: New Jersey, New York, and Pennsylvania. Popular cities in the Mid-Atlantic States are New York City, Newark, Philadelphia, Pittsburgh, Buffalo and Jersey City.

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  • List of Mid-Atlanticern United States

    StateCapitalMajor CitiesPopulaion 2020 CensusLand Area (Sq mi)Density (Sq mi)Total County
    New JerseyTrentonNewark, Jersey City, Paterson, Elizabeth, Edison and Trenton9,288,9947,354 sq mi (19,047 km2)1,215.4021
    New YorkAlbanyNew York, Buffalo, Rochester, Yonkers, Syracuse and Albany20,201,24947,126 sq mi (122,057 km2)41962
    PennsylvaniaHarrisburgPhiladelphia, Pittsburgh, Allentown, Erie, Reading and Harrisburg13,002,70044,743 sq mi (115,883 km2)285.867

    U.S. Mid-Atlantic States Facts

    Region NameMid-Atlantic States
    CountryUnited States of America
    U.S. Census ClassificationNortheast (Middle Atlantic Division)
    States & Territory Included New York, New Jersey, Pennsylvania, Delaware, Maryland, Washington, D.C.
    Number of States/Territories6
    Total Population (2025 est.)65-68 million
    Total Area200,000 sq mi (518,000 km²)
    Most Populous StateNew York
    Largest CityNew York City
    Major Cities New York City, Philadelphia, Baltimore, Newark, Jersey City, Wilmington, Washington, D.C.
    Capital Cities Albany, Trenton, Harrisburg, Dover, Annapolis, Washington, D.C.
    Climate Humid continental in the north, humid subtropical in the south, coastal influences
    Major Rivers Hudson River, Delaware River, Susquehanna River, Potomac River
    Major Water Bodies Atlantic Ocean, Chesapeake Bay, Delaware Bay
    Economic Profile Finance, government, healthcare, education, manufacturing, ports and logistics
    Cultural Significance Early U.S. history, immigration hubs, political centers, arts and media
    Time Zone UTC -5 (Eastern Time)
    Famous For Wall Street, U.S. Capitol, major ports, historic cities, cultural diversity

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