Mission Bay was a census-designated place (CDP) and current unincorporated place west of Boca Raton in Palm Beach County, Florida, United States.

[3] According to the United States Census Bureau, the CDP has a total area of 2.0 km2 (0.77 sq mi), all land.

As of the census[1] of 2000, there were 2,926 people, 1,016 households, and 846 families residing in the CDP.

13.4% of all households were made up of individuals, and 3.1% had someone living alone who was 65 years of age or older.

As of 2000, English was the first language for 82.82% of all residents, while Spanish made up 14.14%, and Italian was the mother tongue for 3.03% of the population.