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  2. Metropolitan statistical area - Wikipedia

    en.wikipedia.org/wiki/Metropolitan_statistical_area

    The MSA population as of July 1, 2023, as estimated by the United States Census Bureau [15] The MSA population as of April 1, 2020, as enumerated by the 2020 United States census [15] [a] The percent MSA population change from April 1, 2020, to July 1, 2023 [15] The combined statistical area (CSA) [17] if it is designated and the MSA is a ...

  3. List of core-based statistical areas - Wikipedia

    en.wikipedia.org/wiki/List_of_core-based...

    The United States Office of Management and Budget (OMB) has defined 925 core-based statistical areas (CBSAs) for the United States and 10 for Puerto Rico. [1] The OMB defines a core-based statistical area as one or more adjacent counties or county equivalents that have at least one urban core area of at least 10,000 population, plus adjacent territory that has a high degree of social and ...

  4. Micropolitan statistical area - Wikipedia

    en.wikipedia.org/wiki/Micropolitan_statistical_area

    The μSA population as of July 1, 2023, as estimated by the United States Census Bureau [5] The μSA population as of April 1, 2020, as enumerated by the 2020 United States census [5] [a] The percent USA population change from April 1, 2020, to July 1, 2023 [5] The combined statistical area (CSA) [7] if the MSA is a component [6]

  5. Washington (state) statistical areas - Wikipedia

    en.wikipedia.org/wiki/Washington_(state...

    The Office of Management and Budget (OMB) has designated more than 1,000 statistical areas for the United States and Puerto Rico. [3] These statistical areas are important geographic delineations of population clusters used by the OMB, the United States Census Bureau, planning organizations, and federal, state, and local government entities.

  6. Combined statistical area - Wikipedia

    en.wikipedia.org/wiki/Combined_statistical_area

    Combined statistical area (CSA) is a United States Office of Management and Budget (OMB) term for a combination of adjacent metropolitan (MSA) and micropolitan statistical areas (μSA) across the 50 U.S. states and the territory of Puerto Rico that can demonstrate economic or social linkage. CSAs were first designated in 2003.

  7. Washington metropolitan area - Wikipedia

    en.wikipedia.org/wiki/Washington_metropolitan_area

    The Washington metropolitan area is one of the most educated and affluent metropolitan areas in the U.S. [7] The metro area anchors the southern end of the densely populated Northeast megalopolis with an estimated total population of 6,304,975 as of 2023 estimates, [8] making it the seventh-most populous metropolitan area in the nation, [9] as ...

  8. Measurement of biodiversity - Wikipedia

    en.wikipedia.org/wiki/Measurement_of_biodiversity

    Each measure relates to a particular use of the data, and is likely to be associated with the variety of genes. Biodiversity is commonly measured in terms of taxonomic richness of a geographic area over a time interval. In order to calculate biodiversity, species evenness, species richness, and species diversity are to be obtained first.

  9. Effects of climate change on human health - Wikipedia

    en.wikipedia.org/wiki/Effects_of_climate_change...

    Climate change is altering the geographic range and seasonality of some insects that can carry diseases, for example Aedes aegypti, the mosquito that is the vector for dengue transmission. Global climate change has increased the occurrence of some infectious diseases. Infectious diseases whose transmission is impacted by climate change include, for example, vector-borne diseases like dengue ...