Mackenzie is a village in St. Louis County. The population was 137 at the 2000 census.
Mackenzie is located at(38.580352, -90.316590).
According to the United States Census Bureau, the village has a total area of 0.0 mi², all land.
As of the census of 2000, there were 137 people, 64 households, and 35 families residing in the village. The population density was 5,316.4/mi². There were 66 housing units at an average density of 2,561.2/mi². The racial makeup of the village was 97.08% White and 2.92% Asian. Hispanic or Latino of any race were 2.19% of the population.
There were 64 households out of which 23.4% had children under the age of 18 living with them, 40.6% were married couples living together, 12.5% had a female householder with no husband present, and 45.3% were non-families. 39.1% of all households were made up of individuals and 12.5% 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 2.89.
In the village the population was spread out with 20.4% under the age of 18, 5.1% from 18 to 24, 40.1% from 25 to 44, 21.2% from 45 to 64, and 13.1% who were 65 years of age or older. The median age was 36 years. For every 100 females there were 85.1 males. For every 100 females age 18 and over, there were 78.7 males.
The median income for a household in the village was $45,357, and the median income for a family was $46,250. Males had a median income of $31,719 versus $34,250 for females. The per capita income for the village was $29,732. There were 7.3% of families and 5.1% of the population living below the poverty line, including 25.0% of under eighteens and none of those over 64.
<googlemap lat="38.581584" lon="-90.318285" width="700" controls="large">38.581584, -90.318285, MacKenzie, MO, USA</googlemap>