Thornhill Flag

Thornhill

County Seat:
No
Area (mi²):
0.045
State:
Kentucky

Thornhill is a city located in Jefferson County, Kentucky. Thornhill has a 2026 population of 187. Thornhill is currently growing at a rate of 0.54% annually and its population has increased by 1.08% since the most recent census, which recorded a population of 185 in 2020.

187
Total Population
4,116
Density (mi²)
1 0.54%
Growth

Nearby Cities

Sources

  1. US Census State Population Estimates - Most recent state estimates from the Census Bureau's Population Estimates Program
  2. US Census County Population Estimates - Most recent county estimates from the Census Bureau's Population Estimates Program
  3. American Community Survey (2009 - 2013)
  4. Census QuickFacts
  5. Historical Populations of States and Counties (1790 - 1990)