Pasadena, CA

ZIP code 91199 is located in Pasadena, California. This area is best known for hosting the world-renowned California Institute of Technology (Caltech). The zip code also encompasses the iconic Jet Propulsion Laboratory (JPL), which has played a crucial role in various NASA missions, including the Mars Rover expeditions. The surrounding area is filled with innovative research facilities, making it a hub for scientific advancement and exploration.