urban center vs Chula Vista

urban center and Chula Vista both are nouns.

Word	Noun	Adjective	Verb	Adverb
urban center	Yes	No	No	No
Chula Vista	Yes	No	No	No

urban center (noun)	Chula Vista (noun)
a large and densely populated urban area; may include several independent administrative districts	an industrial city in southern California (south of San Diego) near the Mexican border