Bakersfield vs urban center

Bakersfield and urban center both are nouns.

Word	Noun	Adjective	Verb	Adverb
Bakersfield	Yes	No	No	No
urban center	Yes	No	No	No

Bakersfield (noun)	urban center (noun)
a city in south central California at the southern end of the San Joaquin Valley	a large and densely populated urban area; may include several independent administrative districts