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  2. List of counties in Maryland - Wikipedia

    en.wikipedia.org/wiki/List_of_counties_in_Maryland

    There are 23 counties and one independent city in the U.S. state of Maryland. Though formally an independent city rather than a county, the City of Baltimore is considered the equal of a county for most purposes and is functionally a county-equivalent in most respects. Many of the counties in Maryland were named for relatives of the Barons ...

  3. List of Maryland area codes - Wikipedia

    en.wikipedia.org/wiki/List_of_Maryland_area_codes

    The blue area is assigned area codes 301, 240, and 227; the red area is area codes 410, 443 and 667. The state of Maryland is served by the following area codes: Area codes. Numbering plan area. 227.

  4. Prince George's County, Maryland - Wikipedia

    en.wikipedia.org/wiki/Prince_George's_County...

    Prince George's County (often shortened to PG County or PG) [2] [3] is a county located in the U.S. state of Maryland bordering the eastern portion of Washington, D.C. As of the 2020 U.S. census , the population was 967,201, [ 5 ] making it the second-most populous county in Maryland , behind neighboring Montgomery County .

  5. Montgomery County, Maryland - Wikipedia

    en.wikipedia.org/wiki/Montgomery_County,_Maryland

    Congressional districts. 4th, 6th, 8th. Website. www.montgomerycountymd.gov. Montgomery County is the most populous county in the U.S. state of Maryland. As of the 2020 census, the county's population was 1,062,061, increasing by 9.3% from 2010. [ 6 ] The county seat is Rockville, and Germantown is the most populous place in the county. [ 7 ]

  6. Potomac, Maryland - Wikipedia

    en.wikipedia.org/wiki/Potomac,_Maryland

    Area code (s) 301, 240. FIPS code. 24-63300. GNIS feature ID. 2389701 [2] Potomac (listen ⓘ) is an unincorporated community and census-designated place in Montgomery County, Maryland, United States. As of the 2020 census, it had a population of 47,018. [3] It is named after the nearby Potomac River.

  7. Maryland statistical areas - Wikipedia

    en.wikipedia.org/wiki/Maryland_statistical_areas

    The U.S. State of Maryland currently has 13 statistical areas that have been delineated by the Office of Management and Budget (OMB). On July 21, 2023, the OMB delineated three combined statistical areas, six metropolitan statistical areas, and four micropolitan statistical areas in Maryland. [1] As of 2023, the largest of these is the ...

  8. Columbia, Maryland - Wikipedia

    en.wikipedia.org/wiki/Columbia,_Maryland

    FIPS code. 24-19125. GNIS feature ID. 0590002. Website. columbiaassociation.com. Columbia is a census-designated place in Howard County, Maryland, United States. It is a planned community consisting of 10 self-contained villages. The census-designated place had a population of 104,681 at the 2020 census, making it the second most populous ...

  9. Area codes 410, 443, and 667 - Wikipedia

    en.wikipedia.org/wiki/Area_codes_410,_443,_and_667

    Area codes 410, 443, and 667. Area codes 410, 443, and 667 are telephone area codes in the North American Numbering Plan (NANP) for the eastern half of the U.S. state of Maryland. The numbering plan area (NPA) includes the Baltimore metropolitan area and the Eastern Shore. The three area codes are overlay codes for one numbering plan area ...