Platinum City is a fictional city in various comic book series published by DC Comics. It is most commonly associated with the superhero Steel, who operates out of Platinum City. The city is known for its advanced technology and is often depicted as a futuristic metropolis. It is located on the East Coast of the United States and is home to a diverse population of both humans and metahumans (individuals with superhuman powers). Platinum City has been portrayed as a center for innovation and progress, often facing various threats and challenges that its heroes must overcome.