Auburn Lake Trails is a census-designated place in El Dorado County, California. It lies at an elevation of 1916 feet (584 m). It is a gated community with 23mi of horse trails. As of the 2010 census, the population was 3,426.DemographicsThe 2010 United States Census reported that Auburn Lake Trails had a population of 3,426. The population density was 268.7 people per square mile (103.8/kmĀ²). The racial makeup of Auburn Lake Trails was 3,190 (93.1%) White, 6 (0.2%) African American, 28 (0.8%) Native American, 36 (1.1%) Asian, 5 (0.1%) Pacific Islander, 45 (1.3%) from other races, and 116 (3.4%) from two or more races. Hispanic or Latino of any race were 208 persons (6.1%).The Census reported that 3,426 people (100% of the population) lived in households, 0 (0%) lived in non-institutionalized group quarters, and 0 (0%) were institutionalized.There were 1,366 households, out of which 383 (28.0%) had children under the age of 18 living in them, 891 (65.2%) were opposite-sex married couples living together, 90 (6.6%) had a female householder with no husband present, 47 (3.4%) had a male householder with no wife present. There were 62 (4.5%) unmarried opposite-sex partnerships, and 18 (1.3%) same-sex married couples or partnerships. 266 households (19.5%) were made up of individuals and 111 (8.1%) had someone living alone who was 65 years of age or older. The average household size was 2.51. There were 1,028 families (75.3% of all households); the average family size was 2.86.