Prior to incorporation the town was called Del Rey Woods. The Del Rey Oaks post office opened in 1968.
Demographics
2010
The 2010 United States Census reported that Del Rey Oaks had a population of 1,624. The population density was 3,362.3 people per square mile. The racial makeup of Del Rey Oaks was 1,326 White, 16 African American, 12 Native American, 128 Asian, 4 Pacific Islander, 52 from other races, and 86 from two or more races. Hispanic or Latino of any race were 169 people. The census reported that 1,624 people lived in households, none lived in non-institutionalized group quarters, and none were institutionalized. There were 701 households, 164 had children under the age of 18 living in them, 361 were opposite-sex married couples living together, 57 had a female householder with no husband present, 25 had a male householder with no wife present. There were 28 unmarried opposite-sex partnerships, and 9 same-sex married couples or partnerships. 209 households were one person and 90 had someone living alone who was 65 or older. The average household size was 2.32. There were 443 families ; the average family size was 2.86. The age distribution was 284 people under the age of 18, 92 people aged 18 to 24, 412 people aged 25 to 44, 528 people aged 45 to 64, and 308 people who were 65 or older. The median age was 46.2 years. For every 100 females, there were 91.1 males. For every 100 females age 18 and over, there were 86.6 males. There were 741 housing units at an average density of 1,534.1 per square mile, of the occupied units 517 were owner-occupied and 184 were rented. The homeowner vacancy rate was 1.9%; the rental vacancy rate was 2.6%. 1,171 people lived in owner-occupied housing units and 453 people lived in rental housing units.
2000
At the 2000 census, there were 1,650 people in 704 households, including 449 families, in the city. The population density was 3,378.8 people per square mile. There were 727 housing units at an average density of 1,488.7 per square mile. The racial makeup of the city was 86.36% White, 1.58% Black or African American, 0.85% Native American, 5.15% Asian, 2.55% from other races, and 3.52% from two or more races. 6.61% of the population were Hispanic or Latino of any race. Of the 704 households 24.4% had children under the age of 18 living with them, 52.7% were married couples living together, 8.7% had a female householder with no husband present, and 36.1% were non-families. 27.1% of households were one person and 9.4% were one person aged 65 or older. The average household size was 2.34 and the average family size was 2.86. The age distribution was 19.2% under the age of 18, 5.7% from 18 to 24, 27.3% from 25 to 44, 31.9% from 45 to 64, and 15.9% 65 or older. The median age was 44 years. For every 100 females, there were 90.5 males. For every 100 females age 18 and over, there were 85.5 males. The median income for a household in the city was $59,423, and the median family income was $70,119. Males had a median income of $48,977 versus $35,500 for females. The per capita income for the city was $30,035. About 2.9% of families and 5.0% of the population were below the poverty line, including 7.4% of those under age 18 and 1.9% of those age 65 or over.
Parks
Del Rey Oaks houses the Frog Pond Wetland Preserve, a wetland area popular with birders.