Brentwood is a larger medium-sized city located in the state of California. With a population of 66,127 people and 12 associated neighborhoods, Brentwood is the 143rd largest community in California. Brentwood has seen a significant amount of newer housing growth in recent years. Quite often, new home construction is the result of new residents moving in who are middle class or wealthier, attracted by jobs, a healthy local economy, or other amenities as they leave nearby or far away areas for greener pastures. This seems to be the case in Brentwood, where the median household income is $134,689.00.

Housing costs in Brentwood are among some of the highest in the nation, although real estate prices here don't compare to real estate prices in the most expensive communities in California.

Also of interest is that Brentwood has more people living here who work in computers and math than 95% of the places in the US.

A relatively large number of people in Brentwood telecommute to their jobs. Overall, about 13.14% of the workforce works from home. While this may seem like a small number, as a fraction of the total workforce it ranks among the highest in the country. These workers are often telecommuters who work in knowledge-based, white-collar professions. For example, Silicon Valley has large numbers of people who telecommute. Other at-home workers may be self-employed people who operate small businesses out of their homes.

Brentwood is a good choice for families with children because of several factors. Many other families with children live here, making it a place where both parents and children are more likely to develop social ties with other families. The city’s good public school district and large population of college-educated adults provide an environment conducive to academic success. Many people own their own single-family homes, providing areas for children to play and stability in the community. Finally, Brentwood’s overall crime rate is lower than average for the country.

One downside of living in Brentwood, however, is that residents on average have to contend with a long commute, spending on average 36.27 minutes every day commuting to work.

The citizens of Brentwood are very well educated compared to the average community in the nation: 38.09% of adults in Brentwood have a bachelor's degree or even advanced degree.

The per capita income in Brentwood in 2022 was $53,655, which is upper middle income relative to California, and wealthy relative to the rest of the US. This equates to an annual income of $214,620 for a family of four. However, Brentwood contains both very wealthy and poor people as well.

Brentwood is an extremely ethnically-diverse city. The people who call Brentwood home describe themselves as belonging to a variety of racial and ethnic groups. The greatest number of Brentwood residents report their race to be White, followed by Asian. Brentwood also has a sizeable Hispanic population (people of Hispanic origin can be of any race). People of Hispanic or Latino origin account for 25.48% of the city’s residents. Important ancestries of people in Brentwood include German, Irish, English, Italian, and European.

Foreign born people are also an important part of Brentwood's cultural character, accounting for 16.84% of the city’s population.

The most common language spoken in Brentwood is English. Other important languages spoken here include Spanish and Tagalog.