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Hartline is a town in Grant County, Washington, United States. The population was 134 at the 2000 census. There is a High School named Almira-Coulee/Hartline High School. The name "Hartline" is an americanized spelling of the German last name "Hartlein" and is an uncommon last name.
Hartline School Preservation Association
Hartline Data from Municipal Research & Services Center