Jupiter Inlet Colony is a town in Palm Beach County, Florida, United States. The population was 400 at the 2010 census.
Jupiter Inlet Colony is located at 26°56′51″N 80°4′29″W (26.947393, -80.074616), in the southernmost tip of Jupiter Island.
According to the United States Census Bureau, the town has a total area of 0.2 square miles (0.52 km2), of which 0.2 square miles (0.52 km2) is land and 0.1 square miles (0.26 km2) (21.74%) is water.
At the 2000 census there were 368 people, 180 households, and 124 families in the town. The population density was 2,090.1 inhabitants per square mile (789.4/km2). There were 229 housing units at an average density of 1,300.6 per square mile (491.2/km2). The racial makeup of the town was 99.73% White, and 0.27% from other races. Of the 180 households 12.2% had children under the age of 18 living with them, 64.4% were married couples living together, 3.3% had a female householder with no husband present, and 31.1% were non-families. 23.9% of households were one person and 15.0% were one person aged 65 or older.