View source for Unicoi County, Tennessee

===2000 census===
As of the [[census]]<ref name="GR8">{{cite web|url=https://www.census.gov|publisher=[[United States Census Bureau]]|access-date=May 14, 2011|title=U.S. Census website}}</ref> of 2000, there were 17,667 people, 7,516 households, and 5,223 families residing in the county. The [[population density]] was {{convert|95|/mi2|/km2|disp=preunit|people&nbsp;|people|}}. There were 8,214 housing units at an average density of {{convert|44|/mi2|/km2|adj=pre|units&nbsp;}}. The racial makeup of the county was 97.96% [[Race (United States Census)|White]], 0.07% [[Race (United States Census)|Black]] or [[Race (United States Census)|African American]], 0.25% [[Race (United States Census)|Native American]], 0.08% [[Race (United States Census)|Asian]], 0.03% [[Race (United States Census)|Pacific Islander]], 0.95% from [[Race (United States Census)|other races]], and 0.66% from two or more races. 1.94% of the population were [[Race (United States Census)|Hispanic]] or [[Race (United States Census)|Latino]] of any race.

There were 7,516 households, out of which 26.60% had children under the age of 18 living with them, 56.40% were [[Marriage|married couples]] living together, 9.50% had a female householder with no husband present, and 30.50% were non-families. 27.50% of all households were made up of individuals, and 13.40% had someone living alone who was 65 years of age or older. The average household size was 2.31 and the average family size was 2.80.

In the county, the population was spread out, with 20.50% under the age of 18, 7.50% from 18 to 24, 27.50% from 25 to 44, 26.50% from 45 to 64, and 18.10% who were 65 years of age or older. The median age was 42 years. For every 100 females, there were 95.10 males. For every 100 females age 18 and over, there were 91.60 males.

The median income for a household in the county was $29,863, and the median income for a family was $36,871. Males had a median income of $30,206 versus $20,379 for females. The [[per capita income]] for the county was $15,612. About 8.70% of families and 13.10% of the population were below the [[poverty line]], including 17.70% of those under age 18 and 13.50% of those age 65 or over.