San Francisco 4th and King Street Station
|San Francisco (Caltrain)
4th and King (Muni Metro)
Caltrain commuter rail and Muni Metro light rail station
The north side of the station.
|Address||700 Fourth Street (Caltrain)
King Street at Fourth Street (N, S)
Fourth Street at King Street (T)
San Francisco, California
|Platforms||6 island platforms (Caltrain)
1 island platform (Muni)
|Bicycle facilities||Lockers available|
|Owned by||Peninsula Corridor Joint Powers Board|
|Fare zone||Fare Zone 1|
|Passengers (2012)||9,670 per weekday 8.7% (Caltrain)|
San Francisco 4th and King Street or 4th and King station (previously known as 4th & Townsend) or Caltrain Depot is the northern terminus of the Caltrain commuter rail line that serves the San Francisco Peninsula and Santa Clara Valley, and is a major regional transit hub. It is also served by the adjacent Muni Metro light rail stations with direct connections to downtown San Francisco and Bay Area Rapid Transit. It is served by all 96 weekday trains and all 32 (Saturday) and 28 (Sunday) weekend trains. The station is located in the Mission Bay area in eastern San Francisco, California, bordered on the north by Townsend Street, east by 4th Street, and south by King Street. It opened on June 21, 1975, replacing a structure built in 1914 at 3rd and Townsend, one block away.
The Caltrain Downtown Extension project to the rebuilt Transbay Terminal includes the construction of an underground 4th and King station. The underground station will be adjacent to the current station on the Townsend side. Several platforms on the current station will be retained to serve as the northern terminus for non-electric trains, such as trains to Union City across Dumbarton Rail Bridge and trains to Gilroy.
Station amenities 
- Public restrooms
- Public phones
- Ticket machines
- Ticket counters
- Validators for Caltrain 8-Ride passes
- Subway sandwich shop
- No parking is available at this station for commuters living in San Francisco
Transit connections 
4th and King hosts a number of Muni bus connections. In addition, service to downtown San Francisco is provided by Muni's T Third Street and N Judah lines The E Embarcadero historic streetcar line is expected to begin operation sometime in 2012, and Muni's Central Subway project is scheduled to open in 2016. N Judah service replaced the J Church on June 30, 2007, two months after the J Church replaced the N Judah on April 7, 2007 on the Caltrain connection to downtown following the opening of the T line. In addition, Amtrak California Thruway Motorcoach service stops here at the Caltrain station to take Amtrak passengers to connecting Amtrak trains in Oakland and Emeryville. The nearest BART access is the Powell Street station, a 1 mile walk up 4th street then left on Market St. California Shuttle Bus operates a service to Los Angeles via Oakland and San Jose.
San Francisco Giants service 
4th and King is located one block from AT&T Park, the home of the San Francisco Giants. Caltrain usually operates special trains to transport fans to and from baseball games. Special trains usually depart about fifteen minutes after the last out. One special train, leaving 15 minutes after the last out, expresses to San Carlos, then stops at every station between San Carlos and San Jose Diridon. This train is not available for daytime weekday games. Giants fans can either walk or take the Muni to the ballpark. Muni operates special trains from Caltrain to the ballpark on game days.
- Media related to San Francisco 4th and King Street Station at Wikimedia Commons
- Caltrain San Francisco station page