ZIP Code 99135
About Hartline
Hartline is a town in Grant County, Washington, United States. The population was 180 at the 2020 census. The high school for the Almira-Coulee/Hartline school district was located here, but moved to Coulee City, Washington in 2008. The name "Hartline" is an Americanized spelling of the German last name "Hartlein" and is an uncommon last name.
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Area Profile
US Census (ACS 5-year · Gazetteer)
441
population
$86,667
median household income
3
people / sq mi
$198,000
median home value
$456
median gross rent
35.5
median age
211
housing units
184
households
173.6
land area (sq mi)