San Francisco 4th and King Street station (previously 4th & Townsend), also known as the Caltrain Depot, is a train station in the SoMa district of San Francisco, California. It is presently the northern terminus of the Caltrain commuter rail line serving the San Francisco Peninsula and Santa Clara Valley. It is also the eastern terminus of the N Judah and E Embarcadero^{[lower-alpha 1]}, as well as a stop along the T Third Street of the Muni network. The station is additionally the projected terminus for the first phase of the California High-Speed Rail project and a station once Phase 2 is completed.

Quick Facts General information, Location ...

San Francisco
4th and King station in December 2022
General information
Location	700 Fourth Street at King Street San Francisco, California
Coordinates	37°46′35″N 122°23′40″W
Owned by	Peninsula Corridor Joint Powers Board
Line(s)	Peninsula Subdivision (Caltrain)[1]
Platforms	6 island platforms (Caltrain) 2 island platforms, 2 side platforms (Muni)[2]
Tracks	13 (Caltrain) 4 (Muni)[2]
Connections	Flixbus Muni: 10, 30, 31, 45, 47, 81X, 82X, 83X
Construction
Parking	Paid parking nearby
Bicycle facilities	Parking station, Bay Wheels station[3]
Accessible	Yes
Other information
Fare zone	1 (Caltrain)
History
Opened	1975 (Caltrain), 1998 (Muni)
Passengers
2018	15,427 (weekday avg.)[4]  1.5% (Caltrain)
Services Preceding station Caltrain Following station Terminus Local (L1) 22nd Street toward San Jose Diridon or Tamien Weekend Local (L2) Limited (L3) Millbrae toward San Jose Diridon, Tamien or Gilroy Limited (L4) 22nd Street toward San Jose Diridon, Tamien or Gilroy Limited (L5) 22nd Street toward San Jose Diridon or Tamien Baby Bullet (B7) Millbrae toward San Jose Diridon 22nd Street (reverse peak) toward San Jose Diridon Preceding station Muni Following station 2nd and King towards Ocean Beach N Judah Terminus 4th and Brannan towards Chinatown T Third Street Mission Rock towards Sunnydale 2nd and King towards Jones and Beach E Embarcadero Suspended Terminus
Proposed service Preceding station California High-Speed Rail Following station Terminus Phase I (2031 Service) Millbrae towards Bakersfield San Francisco Terminus Phase I Full-Build Service Millbrae towards Anaheim or Merced
Track layout v t e Legend to Central Subway Caltrain 4th Street I-280 King Street
Location

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The station is in the Mission Bay/China Basin area, bordered on the north by Townsend Street, east by 4th Street, and south by King Street. All 13 tracks approaching from the west presently terminate here, just short of 4th Street. The facility opened on June 21, 1975, replacing a station built in 1914 at 3rd and Townsend, one block away to the east.

4th & King is one block from Oracle Park, the home ballpark of the San Francisco Giants of Major League Baseball. Caltrain runs extra trains on game days to shuttle fans to and from the ballpark.

The Muni light-rail extension to the station was opened in 1998.^[5]

4th and King hosts a number of Muni bus lines, the E Embarcadero historic streetcar line, the Muni Metro N Judah light rail line runs to Market St downtown, and the Metro’s T Third Street service runs to Chinatown via Muni's Central Subway.^[13]

The N Judah station platform is located on the median of King Street immediately southwest of the 4th and King intersection, while The T Third Street station platform is located on the median of 4th Street immediately southeast of the intersection.^[2] The nearest BART access is the Powell Street station, a 1-mile (1.6 km) walk up 4th street then left on Market St or a nine minute T ride and a five minute walk.

The station is also served by Muni bus routes 10, 30, 31, 45, and 47, along with special express routes 81X, 82X and 83X which provide service to or from business areas near Market Street during peak periods. Additionally, the N Bus, N Owl, T Bus and 91 Owl bus routes provide service along the N Judah and T Third Street lines during the early morning and late night hours when trains do not operate.^[14]