In '9-1-1', in which city is the series primarily set?

In 'Criminal Minds', which unit do the characters belong to? In 'Law & Order: SVU', which character does Mariska Hargitay play? In 'Law & Order: SVU', which actor played Elliot Stabler? In 'Chicago Fire', what is the firehouse number? In 'Blue Bloods', which actor plays police commissioner Frank Reagan? In 'The Good Doctor', what condition does Dr. Shaun Murphy have? In 'Scrubs', at which hospital do the doctors work? In 'House', at which teaching hospital does Dr. House work?