Bradley Gardens is an unincorporated community and census-designated place (CDP) located within Bridgewater Township, in Somerset County, in the U.S. state of New Jersey. As of the 2020 census, Bradley Gardens had a population of 14,077.
According to the United States Census Bureau, Bradley Gardens had a total area of 4.616 square miles (11.955 km<sup>2</sup>), including 4.487 square miles (11.620 km<sup>2</sup>) of land and 0.129 square miles (0.335 km<sup>2</sup>) of water (2.80%).
Bradley Gardens first appeared as a census designated place in the 2010 U.S. census.
The 2010 United States census counted 14,206 people, 4,970 households, and 3,772 families in the CDP. The population density was . There were 5,081 housing units at an average density of . The racial makeup was 63.38% (9,004) White, 2.04% (290) Black or African American, 0.10% (14) Native American, 31.49% (4,473) Asian, 0.01% (2) Pacific Islander, 1.20% (171) from other races, and 1.77% (252) from two or more races. Hispanic or Latino of any race were 5.02% (713) of the population.
Of the 4,970 households, 45.9% had children under the age of 18; 64.5% were married couples living together; 9.1% had a female householder with no husband present and 24.1% were non-families. Of all households, 20.8% were made up of individuals and 4.7% had someone living alone who was 65 years of age or older. The average household size was 2.83 and the average family size was 3.33.
28.5% of the population were under the age of 18, 5.1% from 18 to 24, 28.7% from 25 to 44, 28.5% from 45 to 64, and 9.3% who were 65 years of age or older. The median age was 39.2 years. For every 100 females, the population had 91.1 males. For every 100 females ages 18 and older there were 85.4 males.