TheU.S.State of Maryland currently has 13statistical areas that have been delineated by theOffice of Management and Budget (OMB). On July 21, 2023, the OMB delineated threecombined statistical areas, sixmetropolitan statistical areas, and fourmicropolitan statistical areas in Maryland.[1] As of 2023, the largest of these is theWashington-Baltimore-Arlington, DC-MD-VA-WV-PA CSA, comprisingWashington, D.C. and its suburbs as well as Maryland's largest city ofBaltimore and its capital,Annapolis.
TheOffice of Management and Budget (OMB) has designated more than 1,000statistical areas for theUnited States andPuerto Rico.[2] These statistical areas are important geographic delineations of population clusters used by the OMB, theUnited States Census Bureau, planning organizations, and federal, state, and local government entities.
The OMB defines acore-based statistical area (commonly referred to as aCBSA) as thecounty or counties (orcounty-equivalents) surrounding at least one densely-settled core of at least 10,000 population,[2] "plus adjacent counties having a high degree of social and economic integration with the core as measured through commuting ties with the counties containing the core".[2] The OMB further divides core-based statistical areas based on population intometropolitan statistical areas (MSAs) for those with at least 50,000 andmicropolitan statistical areas (μSAs) for those with 10,000 to 49,999 people.[2]
The OMB defines acombined statistical area (CSA) as two or more adjacentcore-based statistical areas where the employment interchange rate (% commuting from A to B plus % commuting from B to A) is at least 15%.[2] Theprimary statistical areas (PSAs) include allcombined statistical areas and anycore-based statistical area that is not a constituent of a combined statistical area.
| 2023 rank | Core-based statistical area[1] | Population | ||||
|---|---|---|---|---|---|---|
| 2023 estimate[3] | Change | 2020 Census[4] | Change | 2010 Census[5] | ||
| 1 | Baltimore-Columbia-Towson, MD MSA | 2,834,316 | −0.36% | 2,844,510 | +4.94% | 2,710,489 |
| 2 | Washington-Arlington-Alexandria, DC-VA-MD-WV MSA(MD) | 2,471,268 | +0.15% | 2,467,596 | +11.40% | 2,215,133 |
| 3 | Lexington Park, MD MSA | 210,009 | +1.67% | 206,560 | +6.54% | 193,888 |
| 4 | Hagerstown-Martinsburg, MD-WV MSA(MD) | 155,813 | +0.72% | 154,705 | +4.93% | 147,430 |
| 5 | Salisbury, MD MSA | 129,710 | +1.17% | 128,208 | +2.40% | 125,203 |
| 6 | Philadelphia-Camden-Wilmington, PA-NJ-DE-MD MSA(MD) | 105,672 | +1.88% | 103,725 | +2.59% | 101,108 |
| 7 | Cumberland, MD-WV μSA(MD) | 67,273 | −1.22% | 68,106 | −9.30% | 75,087 |
| 8 | Ocean Pines, MD μSA | 54,171 | +3.26% | 52,460 | +1.96% | 51,454 |
| 9 | Easton, MD μSA | 37,823 | +4.33% | 36,254 | +8.28% | 33,481 |
| 10 | Cambridge, MD μSA | 32,879 | +1.07% | 32,531 | −0.27% | 32,618 |
| Cumberland, MD-WV μSA | 94,140 | −0.95% | 95,044 | −7.99% | 103,299 | |
| Hagerstown-Martinsburg, MD-WV MSA | 305,902 | +4.10% | 293,844 | +9.18% | 269,140 | |
| Philadelphia-Reading-Camden, PA-NJ-DE-MD CSA | 6,246,160 | +0.02% | 6,245,051 | +4.69% | 5,965,343 | |
| Washington-Baltimore-Arlington, DC-MD-VA-WV-PA CSA | 6,304,975 | +0.42% | 6,278,542 | +13.18% | 5,547,495 | |
| 2023 rank | Combined statistical area[1] | Population | ||||
|---|---|---|---|---|---|---|
| 2023 estimate[3] | Change | 2020 Census[4] | Change | 2010 Census[5] | ||
| 1 | Washington-Baltimore-Arlington, DC-MD-VA-WV-PA CSA(MD) | 5,742,108 | −0.02% | 5,743,428 | +7.61% | 5,337,340 |
| 2 | Salisbury-Ocean Pines, MD CSA | 183,881 | +1.78% | 180,668 | +2.27% | 176,657 |
| 3 | Philadelphia-Reading-Camden, PA-NJ-DE-MD CSA(MD) | 105,672 | +1.88% | 103,725 | +2.59% | 101,108 |
| Philadelphia-Reading-Camden, PA-NJ-DE-MD CSA | 7,390,919 | +0.15% | 7,379,700 | +4.41% | 7,067,807 | |
| Washington-Baltimore-Arlington, DC-MD-VA-WV-PA CSA | 10,069,592 | +0.41% | 10,028,331 | +10.17% | 9,102,983 | |
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