Serenada is a census-designated place (CDP) in Williamson County, Texas, United States.

[4] According to the United States Census Bureau in 2000, the CDP has a total area of 3.5 square miles (9.2 km2), all land.

Prior to the 2010 census, part of the CDP was annexed to the city of Georgetown, decreasing the total area of 2.6 square miles (6.7 km2), all land.

[5][6] The climate in this area is characterized by hot, humid summers and generally mild to cool winters.

8.1% of all households were made up of individuals, and 3.4% had someone living alone who was 65 years of age or older.