As of 2010, there were 31,899 households, and 8.7% were vacant. As of 2000, 33.4% households had children under the age of 18 living with them, 51.0% were married couples living together, 13.8% had a female householder with no husband present, and 31.0% were non-families. 24.4% of all households were made up of individuals and 7.3% had someone living alone who was 65 years of age or older. The average household size was 2.61 and the average family size was 3.14.
In 2000, the region's population was spread out with 23.3% under the age of 18, 8.6% from 18 to 24, 31.8% from 25 to 44, 24.9% from 45 to 64, and 11.5% who were 65 years of age or older. The median age was 37 years. For every 100 females there were 88.5 males. For every 100 females age 18 and over, there were 83.4 males.
In 2000, the median income for a household in the area was $51,330, and the median income for a family was $61,241. Males had a median income of $42,875 versus $31,416 for females. The per capita income for the area was $27,914. About 5.7% of families and 8.6% of the population were below the poverty line, including 8.0% of those under age 18 and 10.9% of those age 65 or over.
As of 2000, speakers of Spanish as a first language accounted for 52.46% of all residents, while English speakers comprised 40.38%, Portuguese was 1.49%, French at 1.12%, and French Creole made up 0.95% of the population.
As of 2000, Kendall had the twenty-first highest percentage of Cuban residents in the US, with 21.31% of the populace. It had the twenty-fifth highest percentage of Colombian residents in the US, at 4.56% of the population, and the sixteenth highest percentage of Nicaraguan residents in the US, at 2.48% of its population. It also had the twenty-fifth most Peruvians in the US, at 2.01% (tied with Carteret, New Jersey,) while it had the tenth highest percentage of Venezuelan residents in the US, at 1.47% of the population. As a result of the city's large French community, the French American School of Miami is located in Kendall. It is the only French American school in the southern United States.