Dayton (Kalispel-Pend d’Oreille: iʔɫixʷ, Kutenai: aki¢qa) is a census-designated place (CDP) in Lake County, Montana, United States. The population was 95 at the 2000 census.
Dayton is located at 47°51′54″N 114°16′37″W / 47.86500°N 114.27694°W / 47.86500; -114.27694 (47.864979, -114.276835).
According to the United States Census Bureau, the CDP has a total area of 0.5 square miles (1.3 km), all of it land.
As of the census of 2000, there were 95 people, 48 households, and 28 families residing in the CDP. The population density was 177.0 people per square mile (67.9/km²). There were 100 housing units at an average density of 186.3/sq mi (71.5/km²). The racial makeup of the CDP was 93.68% White, 3.16% Native American, and 3.16% from two or more races.
There were 48 households out of which 8.3% had children under the age of 18 living with them, 58.3% were married couples living together, and 39.6% were non-families. 31.3% of all households were made up of individuals and 14.6% had someone living alone who was 65 years of age or older. The average household size was 1.98 and the average family size was 2.45.
In the CDP, the population was spread out with 8.4% under the age of 18, 4.2% from 18 to 24, 17.9% from 25 to 44, 45.3% from 45 to 64, and 24.2% who were 65 years of age or older. The median age was 54 years. For every 100 females, there were 86.3 males. For every 100 females age 18 and over, there were 81.3 males.
The median income for a household in the CDP was $33,125, and the median income for a family was $42,500. Males had a median income of $15,833 versus $15,417 for females. The per capita income for the CDP was $18,501. None of the population and none of the families were below the poverty line.