The CDP of Markleeville also includes Woodfords.
Markleeville traces its beginnings to the land claim of Jacob Marklee who established a toll bridge across a tributary of the Carson River in 1861 during the height of the silver mining boom at nearby Silver Mountain City. He recorded his land claim of 160 acres (0.65 km2) on June 23, 1862, in Douglas County, Nevada, but after the boundary survey his claim was in California. During the rush to the Comstock Lode, the town of Markleeville was built upon Marklee's land. Marklee hoped to prosper from the freight and supplies headed to the mining camps, but was instead killed in a gunfight in 1863, his killer going free on a plea of self defense.
When the mines shut down, Markleeville assumed the county seat and remains the center of government services for Alpine County — the Alpine County Courthouse now occupies the site of Marklee's cabin, which is California Historical Landmark #240.
As of the census of 2000, there were 197 people, 92 households, and 57 families residing in the CDP. The population density was 10.3 people per square mile (4.0/km²). There were 173 housing units at an average density of 9.1/sq mi (3.5/km²). The racial makeup of the CDP was 97.46% White, 1.52% Native American, 1.02% from other races. 1.52% of the population were Hispanic or Latino of any race.
There were 92 households out of which 20.7% had children under the age of 18 living with them, 51.1% were married couples living together, 7.6% had a female householder with no husband present, and 38.0% were non-families. 30.4% of all households were made up of individuals and 8.7% had someone living alone who was 65 years of age or older. The average household size was 2.14 and the average family size was 2.63.
In the CDP the population was spread out with 17.3% under the age of 18, 3.6% from 18 to 24, 30.5% from 25 to 44, 34.0% from 45 to 64, and 14.7% who were 65 years of age or older. The median age was 45 years. For every 100 females there were 95.0 males. For every 100 females age 18 and over, there were 101.2 males.
The median income for a household in the CDP was $46,563, and the median income for a family was $63,750. Males had a median income of $49,375 versus $25,972 for females. The per capita income for the CDP was $40,774. About 7.0% of families and 15.3% of the population were below the poverty line, including 25.0% of those under the age of eighteen and 13.0% of those sixty five or over.