The list of regional nicknames used in English language includes nicknames for people based on their locality of origin (birthplace, place of permanent residence, or family roots).
Nicknames based on the country (or larger geopolitical area) of origin may be found in the List of ethnic slurs.
(UK) A person from Leeds. "Leodiensian" is an irregular Latin-derived demonym; "Loiner" is of uncertain providence.
Nicknames for people from rural, remote, etc. areas often bear a derogatory implication of unsophisticated, undereducated people, simpletons.
Gatos People born in Madrid