District of Columbia statistical areas explained

The United States is the primary city of two statistical areas that have been delineated by the Office of Management and Budget (OMB). On July 21, 2023, the OMB delineated the Washington-Arlington-Alexandria, DC-VA-MD-WV MSA and the more extensive Washington-Baltimore-Arlington, DC-MD-VA-WV-PA CSA.^[1] __TOC__

Table

The two United States statistical areas of the District of Columbia

Combined statistical area	2023 population (est.)^[2]	Core-based statistical area	2023 population (est.)	County	2023 population (est.)	Metropolitan division	2023 population (est.)
Washington-Baltimore-Arlington, DC-MD-VA-WV-PA CSA	10,069,592 678,972	Washington-Arlington-Alexandria, DC-VA-MD-WV MSA	6,304,975 678,972 (DC)	Fairfax County, Virginia	1,141,878	Arlington-Alexandria-Reston, VA-WV MD	3,154,735
				Prince William County, Virginia	489,640
				Loudoun County, Virginia	436,347
				Arlington County, Virginia	234,162
				Stafford County, Virginia	165,428
				City of Alexandria, Virginia	155,230
				Spotsylvania County, Virginia	149,588
				Fauquier County, Virginia	75,165
				Jefferson County, West Virginia	59,787
				Culpeper County, Virginia	54,973
				City of Manassas, Virginia	42,696
				Warren County, Virginia	41,843
				City of Fredericksburg, Virginia	28,928
				City of Fairfax, Virginia	25,144
				City of Manassas Park, Virginia	16,361
				Clarke County, Virginia	15,466
				City of Falls Church, Virginia	14,685
				Rappahannock County, Virginia	7,414
				Prince George's County, Maryland	947,430	Washington, DC-MD MD	1,798,375 678,972 (DC)
				District of Columbia	678,972
				Charles County, Maryland	171,973
				Montgomery County, Maryland	1,058,474	Frederick-Gaithersburg-Bethesda, MD MD	1,351,865
				Frederick County, Maryland	293,391
		Baltimore-Columbia-Towson, MD MSA	2,834,316	Baltimore County, Maryland	844,703	none
			Anne Arundel County, Maryland	594,582
			Baltimore City, Maryland	565,239
			Howard County, Maryland	336,001
			Harford County, Maryland	264,644
			Carroll County, Maryland	176,639
			Queen Anne's County, Maryland	52,508
		Hagerstown-Martinsburg, MD-WV MSA	305,902	Washington County, Maryland	155,813
			Berkeley County, West Virginia	132,440
			Morgan County, West Virginia	17,649
		Lexington Park, MD μSA	210,009	St. Mary's County, Maryland	115,281
			Calvert County, Maryland	94,728
		Chambersburg, PA MSA	157,854	Franklin County, Pennsylvania	157,854
		Winchester, VA-WV MSA	147,260	Frederick County, Virginia	95,994
			City of Winchester, Virginia	27,617
			Hampshire County, West Virginia	23,649
		Lake of the Woods, VA μSA	38,574	Orange County, Virginia	38,574
		Easton, MD μSA	37,823	Talbot County, Maryland	37,823
		Cambridge, MD μSA	32,879	Dorchester County, Maryland	32,879
District of Columbia	678,972

See also

• Geography of the District of Columbia
  • Demographics of the District of Columbia

External links

• Office of Management and Budget
• United States Census Bureau

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Notes and References

1. Web site: Revised Delineations of Metropolitan Statistical Areas, Micropolitan Statistical Areas, and Combined Statistical Areas, and Guidance on Uses of the Delineations of These Areas . July 21, 2023 . 0MB BULLETIN NO. 23-01 . October 23, 2023 . Office of Management and Budget.
2. Web site: March 2023 . County Population Totals and Components of Change: 2020-2023 . May 21, 2024 . United States Census Bureau, Population Division.