- "Everyone needs to be a superhero, everyone needs to get up and say 'not in my house'. Let's prove to these thugs that we are strong, and we're united, and we are not going to be conquered. And Tiara Woman, if you and your little minions happen to be listening, you have come to the wrong town."
- —Cat Grant[src]
National City is a Californian city in the United States of Earth-38. It is home to several important businesses and corporations such as CatCo Worldwide Media, L-Corp, and Spheerical Industries. National City is a global epicenter of fashion and, potentially, the alien capital of the world. As of 2016, the city has a population of 4 million people.
- Arias house
- Kara Danvers' apartment
- Alex Danvers' apartment
- J'onn J'onzz's apartment
- Lena Luthor's penthouse
- Lockwood house
- Nia Nal's apartment
- National City Sharks (football)
Sometime in 2013, there was an earthquake in National City.
In September 2014, there were wildfires that killed eight people.
Project Cadmus tried to capture all aliens in the country and went to many places including National City.
After Rhea and Lena Luthor built a portal device, Rhea used it to bring thousands of Daxamites over to National City, calling it the "new Daxam". Supergirl was forced to use a device that released lead into the atmosphere, which forced all of the Daxamites to leave.
As both a "thank you" and reward for having saved both the city and world, the National City committee built a Supergirl statue. At the unveiling, there was an attack, but Supergirl was able to stop it before anyone was seriously injured.
Throughout the city, children started getting sick from what appeared to be lead poisoning. The city first thought that the lead poisoning was from the device Lena Luthor had made to force all the Daxamites to leave the city. It was later discovered that Morgan Edge was responsible for the poisoning, as he had poisoned the water of a public pool to frame Lena.
- Imra Ardeen (returned to the 31st century)
- Ruby Arias (relocated to Metropolis)
- Samantha Arias (relocated to Metropolis)
- Cat Grant (relocated to Washington, D.C.)
- Lucy Lane
- Mon-El (relocated to the 31st century)
- Winn Schott (relocated to the 31st century)
Adventures of Supergirl
Behind the scenes
- Even though the city was an original creation for the show, it made its first official appearance in the mainstream DC Universe in Action Comics vol. 2, #51, after a mention in Batman/Superman #31. It would later serve as the setting for Supergirl as part of the DC Rebirth event when the new Supergirl comic book series would borrow several elements from the show.