B

• Baltimore metropolitan area(8 C, 5 P)

H

• Hagerstown metropolitan area(16 C, 18 P)

O

• Organizations based in the Baltimore–Washington metropolitan area(2 C, 4 P)

P

• People from the Baltimore–Washington metropolitan area(8 C)
• Populated places in the Baltimore–Washington metropolitan area(1 C)

W

• Washington metropolitan area(30 C, 62 P)
• Winchester, VA–WV MSA(3 C, 4 P)

• Washington–Baltimore combined statistical area

.

• Washington-Baltimore-Northern Virginia Combined Statistical Area

*

• Baltimore metropolitan area

B

• Bethesda, Maryland

C

• California-Lexington Park, MD Metropolitan Statistical Area
• Cambridge, MD Micropolitan Statistical Area
• Chambersburg, Pennsylvania metropolitan area

E

• Easton, MD Micropolitan Statistical Area

L

• List of cities in the Baltimore–Washington metropolitan area

N

• National Weather Service Baltimore/Washington

P

• List of parks in the Baltimore–Washington metropolitan area
• Prince George's County, Maryland

W

• Washington metropolitan area