Pasadena, CA

ZIP code 91189 is located in Pasadena, California. This area is home to the prestigious California Institute of Technology (Caltech), known for its cutting-edge research and academic excellence. The Jet Propulsion Laboratory, NASA's leading center for robotic exploration of the solar system, is also situated within this ZIP code. The neighborhood boasts a mix of modern research facilities and historic architecture, making it a unique and vibrant area in Pasadena.