what was then the western edge of Los Angeles. The houses featured amenities like "beveled-glass china cabinets, marble fireplaces and mahogany floors". It was accessible to downtown via streetcar and attracted upper-class families. Many of the hundred-year-old structures are still standing and have been renovated and upgraded. The neighborhood is part of the West Adams Terrace Historic Preservation Overlay Zone (HPOZ). Twentieth Street Historic District The Twentieth Street Historic District consists of a row of bungalows and Craftsman-style houses in the 900 block on the south side of 20th Street. Demographics According to the Mapping L.A. project of the Los Angeles Times, a total of 21,764 people lived in West Adams's 1.48 square miles, according to the 2000 U.S. census—averaging 14,686 people per square mile, among the highest population densities in the city as a whole. Population was estimated at 22,857 in 2008. The median age was 28, considered young when compared to the city as a whole. The percentages of residents aged birth to 18 were among the county's highest. Latinos made up 56.2% of the population, with black people at 37.6%, white people 2.4%, Asian 1.7%, and other 2%. Mexico and El Salvador were the most common places of birth for the 36.9% of the residents who were born abroad, an average percentage of foreign-born when compared with the city or county as a whole. The $38,209 median household income in 2008 dollars was considered low for the city and county. The percentage of households earning $20,000 or less was high, compared to the county at large. The average household size of 3.1 people was about average for the city. Renters occupied 62.8% of the housing units, and homeowners occupied the rest. In 2000, there were 1,078 families headed by single parents, or 21.8%, a rate that was high for the county and the city. The percentages of never-married women (39.5) and divorced women (5.7) were among the county's highest. Just 7.8% of residents aged 25 and older had a four-year degree, a percentage considered low for the city and the county; the percentage with less than a high school diploma (not stated) was considered high. Education The schools within the West Adams neighborhood are as follows: Stella Middle Charter Academy, LAUSD, 2636 Mansfield Avenue Cienega Elementary School, LAUSD, 2611 South Orange Drive Cleophas Oliver Learning Academy, private elementary, 4449 West Adams Boulevard Virginia Road Elementary School, LAUSD,