Chula Vista vs urban center

Chula Vista and urban center both are nouns.

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

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