Launchpads
Vandenberg Space Force Base Space Launch Complex 3W (VAFB SLC 3W)
SpaceX's original west coast launch pad for Falcon 1. It was used in a static fire test but was never employed for a launch, and was abandoned due to range scheduling conflicts arising from overflying other active pads.
Cape Canaveral Space Force Station Space Launch Complex 40 (CCSFS SLC 40)
SpaceX's primary Falcon 9 pad, where all east coast Falcon 9s launched prior to the AMOS-6 anomaly. Previously used alongside SLC-41 to launch Titan rockets for the US Air Force, the pad was heavily damaged by the AMOS-6 anomaly in September 2016. It returned to flight with CRS-13 on December 15, 2017, boasting an upgraded throwback-style Transporter-Erector modeled after that at LC-39A.
SpaceX South Texas Launch Site (STLS)
SpaceX's new private launch site currently under construction for suborbital test flights of Starship, and potentially orbital flights of the full super heavy stack (previously referred to as BFR) in the future. Currently planned to enter use with static fires and test hops of the Starhopper, with the first tethered hop successfully occurring in March 2019. It was previously going to be used for Falcon 9 and Falcon Heavy flights, but this no longer appears to be likely due to its construction timeline and existing launch sites being sufficient to handle present demand. Due to the Caribbean islands and off-shore oil wells, it will be limited to very few possible launch trajectories, and current Texas law only allows a limited number of beach closures per year for orbital launches.
Kwajalein Atoll Omelek Island (Kwajalein Atoll)
SpaceX's original pad, where all of the Falcon 1 flights occurred (from 2006 to 2009). It would have also been the launch site of the Falcon 1e and the Falcon 9, but it was abandoned as SpaceX ended the Falcon 1 program and decided against upgrading it to support Falcon 9, likely due to its remote location and ensuing logistics complexities.
Vandenberg Space Force Base Space Launch Complex 4E (VAFB SLC 4E)
SpaceX's primary west coast launch pad for polar orbits and sun-synchronous orbits, primarily used for Iridium NEXT and scientific satellite launches. The pad was used for the debut of Falcon 9 v1.1 in the rocket's first ever non-dragon mission, CASSIOPE, in September 2013. It is SpaceX's only remaining pad with the old-style transporter/erector, which reclines prior to launch instead of using a throwback procedure. It is also capable of launching Falcon Heavy (although some pad modifications would be needed, but no west coast Falcon Heavy missions are currently planned).
Kennedy Space Center Historic Launch Complex 39A (KSC LC 39A)
NASA's historic pad that launched most of the Saturn V and Space Shuttle missions, including Apollo 11. SpaceX initially leased solely for Falcon Heavy and Crew Dragon launches, but the company has also used it for others as well following the damage to SLC-40 in the AMOS-6 explosion. After completing the necessary modifications, the first launch SpaceX performed on the pad was CRS-10 in February 2017. After SLC-40 was back online, 39A was upgraded to support Falcon Heavy and complete the removal of the shuttle-era Rotating Service Structure. More recently, a crew access arm and other safety equipment has been installed in order to launch commercial crew missions. 39A also occasionally launches other Falcon 9 missions between Falcon Heavy and Crew Dragon launches, depending on pad scheduling. The pad may also potentially be upgraded in the future for use with the BFR.