Coldstream is a home rule-class city in Jefferson County, Kentucky, United States. The population was 956 at the 2000 census.
Coldstream is located at (38.317031, -85.528809).
According to the United States Census Bureau, the city has a total area of 0.2 square miles (0.52 km2), all land.
As of the census of 2000, there were 956 people, 322 households, and 278 families residing in the city. The population density was 4,333.9 people per square mile (1,677.8/km²). There were 325 housing units at an average density of 1,473.3 per square mile (570.4/km²). The racial makeup of the city was 67.89% White, 26.67% Black or African American, 2.09% Asian, 2.09% from other races, and 1.26% from two or more races. Hispanic or Latino of any race were 3.14% of the population.
There were 322 households out of which 49.4% had children under the age of 18 living with them, 68.3% were married couples living together, 13.0% had a female householder with no husband present, and 13.4% were non-families. 10.2% of all households were made up of individuals and 1.2% had someone living alone who was 65 years of age or older. The average household size was 2.97 and the average family size was 3.16.
In the city the population was spread out with 31.0% under the age of 18, 8.5% from 18 to 24, 36.6% from 25 to 44, 22.3% from 45 to 64, and 1.7% who were 65 years of age or older. The median age was 31 years. For every 100 females there were 96.3 males. For every 100 females age 18 and over, there were 98.2 males.
The median income for a household in the city was $60,192, and the median income for a family was $61,528. Males had a median income of $39,844 versus $29,297 for females. The per capita income for the city was $22,810. About 1.1% of families and 1.7% of the population were below the poverty line, including 1.4% of those under age 18 and none of those age 65 or over.