Hartline is located in Washington. Hartline, Washington has a population of 117. Hartline is less family-centric than the surrounding county with 18% households with children. The county percentage for households with children is 35%.
The median household income in Hartline, Washington is $71,310. The median household income for the surrounding county is $59,938 compared to the national median of $66,222. The median age of people living in Hartline is 51.8 years.
The average high temperature in July is 87.01 degrees, with an average low temperature in January of 19.96 degrees. The annual precipitation is 10.52.