The Town of Dillon is a Home Rule Municipality in Summit County, Colorado, United States. The population was 904 at the 2010 census.
Dillon is located at 39°37′40″N 106°2′39″W / 39.62778°N 106.04417°W / 39.62778; -106.04417 (39.627659, -106.044199).
According to the United States Census Bureau, the town has a total area of 2.4 square miles (6.2 km), of which, 1.5 square miles (3.9 km) of it is land and 0.9 square miles (2.3 km) of it (35.71%) is water. Dillon Dam and its reservoir (Lake Dillon) are nearby. The continental divide is approximately 10 miles (16 km) east.
As of the census of 2000, there were 802 people, 369 households, and 195 families residing in the town. The population density was 523.0 people per square mile (202.4/km²). There were 1,280 housing units at an average density of 834.7 per square mile (323.0/km²). The racial makeup of the town was 95.64% White, 0.87% African American, 1.00% Native American, 0.12% Asian, 1.87% from other races, and 0.50% from two or more races. Hispanic or Latino of any race were 10.35% of the population.
There were 369 households out of which 21.4% had children under the age of 18 living with them, 42.5% were married couples living together, 7.3% had a female householder with no husband present, and 46.9% were non-families. 31.7% of all households were made up of individuals and 6.0% had someone living alone who was 65 years of age or older. The average household size was 2.17 and the average family size was 2.62.
In the town, the population was spread out with 15.5% under the age of 18, 10.8% from 18 to 24, 39.2% from 25 to 44, 25.6% from 45 to 64, and 9.0% who were 65 years of age or older. The median age was 37 years. For every 100 females, there were 123.4 males. For every 100 females age 18 and over, there were 125.2 males.
The median income for a household in the town was $49,821, and the median income for a family was $59,107. Males had a median income of $36,304 versus $26,042 for females. The per capita income for the town was $32,727. About 4.7% of families and 6.3% of the population were below the poverty line, including 9.2% of those under age 18 and 4.4% of those age 65 or over.
Dillon Colorado neighborhoods include: Cove Condo, Dillon, Keystone Ranch, Summerwood, Swan Meadow Village, The River Course area, Whispering Pines Ranch