List of Metrobus routes (Washington, D.C.)

Washington Metropolitan Area Transit Authority (WMATA) Metrobus
Company type	Public transit
Industry	Public transportation
Headquarters	Washington, D.C., United States
Area served	Washington metropolitan area (Washington, D.C., Maryland, Virginia)
Products	Bus services
Owner	Washington Metropolitan Area Transit Authority
Website	wmata.com

This compilation enumerates bus services managed by the Washington Metropolitan Area Transit Authority (WMATA) under the Metrobus label, many of which have historical roots in streetcar routes formerly operated by the Capital Transit Company.

Current routes

Metrobus lines are categorized based on geographical location:

Numbering

With the introduction of WMATA’s BetterBus initiative, route numbering has been updated to better correspond with specific service zones and types:

Routes mainly serving Washington, D.C., begin with C (crosstown) or D (downtown).
Services in Arlington County and Alexandria use the prefix A.
Fairfax County routes start with F.
Prince George's County routes are designated with P.
Montgomery County routes commence with M.

Express or limited-stop routes include an X suffix on their route designation.

Previous Numbering Scheme

Between 1973 and June 29, 2025, Metrobus route numbers adhered to the following conventions:

In Washington, D.C., routes were identified by either two-digit numbers (such as 31, 42) or a combination of a letter and number (e.g., A2, S2).
Montgomery County routes combined a letter and number (e.g., C4, Q4).
Prince George's County lines used a letter followed by two digits (for example, F12, J12).
Northern Virginia routes featured one or two digits followed by a letter (such as 1A, 16C).

Typically, odd-numbered routes represented limited-service variants of their even-numbered counterparts. Initially, odd numbers indicated express services—a practice no longer in use. Maryland and D.C. route groups were organized by their initial digit according to historic streetcar line classifications:

Category	Route numbers
Streetcars	10 Columbia Line 20 Cabin John Line 30 Pennsylvania Avenue and Wisconsin Avenue Lines 40 Mount Pleasant Line 50 Fourteenth Street Line 60 11th Street, Upshur Street and New Hampshire Avenue Lines 70 Seventh Street and Georgia Avenue Lines 80 College Park and North Capitol Street Lines 90 U Street and East Capitol Street Lines
Buses in D.C. & Maryland	A Anacostia and Martin Luther King Jr. avenues/highways B Bladensburg Road and Annapolis Road areas C Branch Avenue and University Boulevard corridors D Northwest and Suitland sectors E Northwest/Northeast crosstown routes F East–West Highway and New Carrollton area G Northwest, Brookland, Greenbelt zones H St. Barnabas Road, Branch Avenue, Columbia Road J Silver Spring, Bethesda, Forestville regions K Forestville and New Hampshire Avenue corridor L Connecticut Avenue and Landover Road areas M Pennsylvania Avenue Northwest corridor N Massachusetts Avenue and National Harbor lines P Anacostia, North Capitol Street, District Heights zones Q Veirs Mill Road corridor in Maryland R Riggs Road and Kenilworth Avenue areas S Sixteenth Street Lines T Annapolis Road, Rhode Island Ave NE corridors U Minnesota Avenue and Sheriff Road sectors V Minnesota Avenue to Capitol Heights and Suitland W Martin Luther King Jr. Avenue to Oxon Hill area X Benning Road–H Street Line Y Georgia Avenue corridor Z US 29 corridor in Maryland
Buses in Virginia	1 Arlington Blvd and Wilson Blvd corridors 2 Langston Blvd and Washington Blvd lines 3 Annandale and Langston Blvd areas 4 Arlington Blvd route 7 Landmark, Shirlington, Alexandria sectors 8 Fairlington, Foxchase, Seminary Valley regions 10 Alexandria to Pentagon via Ballston/Crystal City 11 Mount Vernon route 15 Chain Bridge Road corridor 16 Columbia Pike line 17 King Park to Pentagon route 18 Burke, Orange Hunt, Springfield areas 21 Crystal City to Pentagon via Shirlington/Landmark 22 Ballston to Shirlington/Pentagon line 23 Crystal City to McLean via Shirlington 25 Ballston to Mark Center route 26 Annandale to Culmore line 28 Falls Church to Pentagon via Leesburg Pike/Skyline City 29 Annandale to Pentagon via Little River Turnpike 38 Ballston to Farragut Square/Georgetown line MWY Alexandria to Potomac Yard via Richmond Hwy/Pentagon City/Crystal City REX Richmond Highway Express service

Divisions

Division Name	Location	Routes Served	City Section
Andrews Federal Center (A)	7541 Andrews Federal Campus Drive, Suitland, MD 20746	C35, C57, C63, D1X, D2X, D10, D20, P66, P87, P90, P93, P94, P96	Southern Prince George's County, Maryland and Southeast Washington D.C.
Bladensburg (B)	2251 26th Street NE, Washington, D.C. 20018-1405	C33, C41, C61, C71, C75, C77, C81, D24, D30, D32, D34, D36, D44, D74, M60, P15, P16 Night service: D20, D50	Southeast and Northeast areas of Washington D.C.
Cinder Bed Road (C)	7901 Cinder Bed Rd, Lorton, VA 22135	F1X, F19, F23, F24, F26, F28, F29, F50, F81, F83, F85	Fairfax County in Virginia
Four Mile Run (F)	3501 South Glebe Road, Arlington, VA 22202	A1X, A11, A12, A25, A27, A28, A40, A49, A58, A66, A70, A71, A76, A90; F20; F44; F60–62; F81	Northern Virginia region
Landover (L)	3433 Pennsy Drive, Landover, MD 20785	P1X; selected routes from P10–P14; selected routes from P20–P42; selected routes from P60–P73	Prince George's County spanning northern to southern sections in Maryland
Montgomery (M)	5400 Marinelli Road, North Bethesda, MD 20852	C87; D4X–D6X; M12; M20; M22; M42; M44; M52; M54; M6X; M70; M82 Night service: D80	Montgomery County in Maryland
Shepherd Parkway (S)	2 DC Village Lane SW, Washington, D.C. 20032	Selected routes from C11–C31; C33; C37; C43; C51; C53; C55; D20; D50; P97 Night service: D10	Southwest and Southeast Washington D.C., plus southern Prince George's County
Western (W)	5230 Wisconsin Avenue NW, Friendship Heights, Washington D.C. 20015	C83; C85; C91; D50; routes D70–D72; routes D80–D82; D90; D94; D96 Weekday service: D5X	Northwest Washington D.C.