The portion of the Los Angeles River that runs through the Encino area is one of only two unpaved areas necessitated by the high water table. The original aquifer that fed the City of Los Angeles is the one located below Encino.
As of the 2000 Census, the population of Encino was 40,946, with a population density 3,864.9 per square mile. The racial makeup of the district was 89.90% White, 1.78% African American, 4.38% Asian, 0.19% Native American, and 4.13% 'Other'. Hispanic or Latino of any race were 4.62% of the population.
18.25% of the population was under 18, and 20.08% was over 64. The district contained 18,159 housing units in a land area of 10.59 square miles (27.44 square kilometers). Water covers 0.13 square miles (0.33 square kilometers) of the district.