Maryland: Time Zones, Counties, Cities & Map

Metro and micro areas in Maryland, largest first

6 metro areas and 4 micro areas have counties in Maryland. 4 cross into another state; their populations are for the whole area. Populations are July 2025 estimates.

1. Washington-Arlington-Alexandria, DC-VA-MD-WV Metro Area6,465,724 people
2. Philadelphia-Camden-Wilmington, PA-NJ-DE-MD Metro Area6,329,118 people
3. Baltimore-Columbia-Towson, MD Metro Area2,857,781 people
4. Hagerstown-Martinsburg, MD-WV Metro Area315,280 people
5. Lexington Park, MD Metro Area211,176 people
6. Salisbury, MD Metro Area131,872 people
7. Cumberland, MD-WV Micro Area93,640 people
8. Ocean Pines, MD Micro Area54,459 people
9. Easton, MD Micro Area38,238 people
10. Cambridge, MD Micro Area33,628 people

Every metro and micro area in the US

Largest election districts in Maryland

1. District 6, Savage, Howard County102,923 people
2. District 1, Abingdon, Harford County95,314 people
3. District 6, Waldorf, Charles County91,031 people
4. District 6, Spauldings, Prince George's County90,649 people
5. District 3, Bel Air, Harford County88,516 people
6. District 2, Frederick, Frederick County88,062 people
7. District 17, Chillum, Prince George's County87,326 people
8. District 13, Kent, Prince George's County78,842 people
9. District 21, Berwyn, Prince George's County78,197 people
10. District 5, Clarksville, Howard County73,624 people
11. District 2, Ellicott City, Howard County69,846 people
12. District 12, Oxon Hill, Prince George's County69,441 people

All 254 election districts in Maryland, by county

Counties and equivalents, largest first

These areas overlap the mapped boundary; an overlap does not mean that every address belongs to both.

1. Montgomery County, Maryland1,074,582 people
2. Prince George's County, Maryland970,374 people
3. Baltimore County, Maryland847,650 people
4. Anne Arundel County, Maryland603,380 people
5. Baltimore city, Maryland569,997 people
6. Howard County, Maryland339,183 people
7. Frederick County, Maryland302,883 people
8. Harford County, Maryland266,446 people
9. Carroll County, Maryland176,677 people
10. Charles County, Maryland176,593 people
11. Washington County, Maryland157,731 people
12. St. Mary's County, Maryland116,692 people

Cities, towns and communities, largest first

These areas overlap the mapped boundary; an overlap does not mean that every address belongs to both.

1. Baltimore, Maryland (city)573,243 people
2. Columbia, Maryland (CDP)104,338 people
3. Germantown, Maryland (CDP)90,719 people
4. Frederick, Maryland (city)83,395 people
5. Waldorf, Maryland (CDP)82,943 people
6. Silver Spring, Maryland (CDP)81,462 people
7. Ellicott City, Maryland (CDP)75,257 people
8. Glen Burnie, Maryland (CDP)72,590 people
9. Gaithersburg, Maryland (city)69,825 people
10. Bethesda, Maryland (CDP)69,397 people
11. Rockville, Maryland (city)67,671 people
12. Dundalk, Maryland (CDP)65,969 people

See all 536 cities, towns and communities in Maryland, largest first

ZIP Code areas, largest first

These areas overlap the mapped boundary; an overlap does not mean that every address belongs to both.

1. ZIP 2090670,595 people
2. ZIP 2123466,334 people
3. ZIP 2087866,115 people
4. ZIP 2174064,792 people
5. ZIP 2111762,816 people
6. ZIP 2087462,738 people
7. ZIP 2112261,566 people
8. ZIP 2122259,407 people
9. ZIP 2090458,646 people
10. ZIP 2106157,230 people
11. ZIP 2074454,441 people
12. ZIP 2077254,319 people

See all 478 ZIP Code areas in Maryland, largest first

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