household vs family

household and family both are nouns.

Word	Noun	Adjective	Verb	Adverb
household	Yes	No	No	No
family	Yes	No	No	No

As nouns, household and family are synonyms defined as:

Other synonyms of household include home, house, menage.

household (noun)	family (noun)
a social unit living together	primary social group; parents and children
	people descended from a common ancestor
	a social unit living together
	(biology) a taxonomic group containing one or more genera
	a collection of things sharing a common attribute
	an association of people who share common beliefs or activities
	a loose affiliation of gangsters in charge of organized criminal activities
	a person having kinship with another or others