Black Diamond is a somewhat small city located in the state of Washington. With a population of 6,602 people and two associated neighborhoods, Black Diamond is the 136th largest community in Washington. Black Diamond 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 Black Diamond, where the median household income is $144,728.00.

Black Diamond home prices are not only among the most expensive in Washington, but Black Diamond real estate also consistently ranks among the most expensive in America.

Also of interest is that Black Diamond 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 Black Diamond telecommute to their jobs. Overall, about 21.54% 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.

In addition, Black Diamond is home to many people who could be described as "urban sophisticates". Urban sophisticates are people who are both educated and wealthy, and thus tend to be older, richer, and more established than young professionals. "Urban sophisticates" is not just about being educated and well-off financially: it is a point of view and state of mind, one that you might call 'urbaneness'. But such people can and do regularly live in small towns, suburbs and rural areas, as well as in big cities. They read, support the arts and high-end shops, and love travel.

Black Diamond 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, Black Diamond’s overall crime rate is lower than average for the country.

One downside of living in Black Diamond, however, is that residents on average have to contend with a long commute, spending on average 36.46 minutes every day commuting to work.

If knowledge is power, Black Diamond is a pretty powerful place. 56.45% of the adults in Black Diamond have earned a 4-year college degree, masters degree, MD, law degree, or even PhD. Compare that to the national average of 21.84% for all cities and towns.

The per capita income in Black Diamond in 2022 was $67,735, which is wealthy relative to Washington and the nation. This equates to an annual income of $270,940 for a family of four.

Black Diamond is a very ethnically-diverse city. The people who call Black Diamond home describe themselves as belonging to a variety of racial and ethnic groups. The greatest number of Black Diamond residents report their race to be White, followed by Asian. Important ancestries of people in Black Diamond include German, English, Irish, Norwegian, and European.

Foreign born people are also an important part of Black Diamond's cultural character, accounting for 15.69% of the city’s population.

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