countryfolk vs folk

countryfolk and folk both are nouns.

Word	Noun	Adjective	Verb	Adverb
countryfolk	Yes	No	No	No
folk	Yes	No	No	No

As nouns, folk is a hypernym of countryfolk; that is, folk is a word with a broader meaning than countryfolk:

Other hypernyms of countryfolk include common people, folks.

countryfolk (noun)	folk (noun)
people raised in or living in a rural environment; rustics	the traditional and typically anonymous music that is an expression of the life of people in a community
people living in the same country; compatriots	people in general (often used in the plural)
	a social division of (usually preliterate) people
	people descended from a common ancestor