In the year of 2023, Millstone, KY had a population of 617 people with a median age of 34.9 and a median household income of $40,325. Between 2022 and 2023 the population of Millstone, KY declined from 675 to 617, a −8.59% decrease and its median household income grew from $38,040 to $40,325, a 6.01% increase.
The 5 largest ethnic groups in Millstone, KY are White (Non-Hispanic) (100%), Black or African American (Non-Hispanic) (0%), American Indian & Alaska Native (Non-Hispanic) (0%), Asian (Non-Hispanic) (0%), and Native Hawaiian & Other Pacific Islander (Non-Hispanic) (0%).
None of the households in Millstone, KY reported speaking a non-English language at home as their primary shared language. This does not consider the potential multi-lingual nature of households, but only the primary self-reported language spoken by all members of the household.
100% of the residents in Millstone, KY are U.S. citizens.