SECTIONALISM
sectionalism, provincialism, localism
(noun) a partiality for some particular place
Source: WordNet® 3.1
Etymology
Noun
sectionalism (countable and uncountable, plural sectionalisms)
Promoting the good of one division, department or subgroup over that of the whole.
(politics) Promoting the good of one region over that of the nation.
Source: Wiktionary
Sec"tion*al*ism, n.
Definition: A disproportionate regard for the interests peculiar to a
section of the country; local patriotism, as distinguished from
national. [U. S.]
Source: Webster’s Unabridged Dictionary 1913 Edition