Jackson County is a county in the state of Colorado. As of the 2010 census, the population was 1,394, and it was the fourth least-densely populated in the state. The county seat and only municipality in the county is Walden.
According to the U.S. Census Bureau, the county has a total area of 1,621 square miles (4,200 km), of which 1,614 square miles (4,180 km) is land and 7.2 square miles (19 km) (0.9%) is water.
Jackson County contains the 71,000-acre (290 km) Colorado State Forest.
As of the census of 2000, there were 1,577 people, 661 households, and 442 families residing in the county. The population density was 1 person per square mile (0.25/km²). There were 1,145 housing units at an average density of 1 per square mile (0/km²). The racial makeup of the county was 96.20% White, 0.25% Black or African American, 0.76% Native American, 0.06% Asian, 1.46% from other races, and 1.27% from two or more races. 6.53% of the population were Hispanic or Latino of any race.
There were 661 households out of which 29.20% had children under the age of 18 living with them, 54.90% were married couples living together, 7.90% had a female householder with no husband present, and 33.00% were non-families. 28.40% of all households were made up of individuals and 10.10% had someone living alone who was 65 years of age or older. The average household size was 2.37 and the average family size was 2.91.
In the county, the population was spread out with 25.60% under the age of 18, 5.40% from 18 to 24, 26.90% from 25 to 44, 29.10% from 45 to 64, and 13.10% who were 65 years of age or older. The median age was 40 years. For every 100 females there were 101.40 males. For every 100 females age 18 and over, there were 107.80 males.
The median income for a household in the county was $31,821, and the median income for a family was $37,361. Males had a median income of $26,250 versus $18,417 for females. The per capita income for the county was $17,826. About 10.30% of families and 14.00% of the population were below the poverty line, including 22.50% of those under age 18 and 9.00% of those age 65 or over.