Signal Hill is a somewhat small city located in the state of California. With a population of 11,381 people and four associated neighborhoods, Signal Hill is the 395th largest community in California.

Housing costs in Signal Hill 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 Signal Hill has more people living here who work in computers and math than 95% of the places in the US.

Telecommuters are a relatively large percentage of the workforce: 15.17% of people work from home. While this number may seem small overall, as a fraction of the total workforce it is high relative to the nation. 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 Signal Hill, however, the average commute to work is quite long. On average, people spend 33.42 minutes each day getting to work, which is significantly higher than the national average.

The citizens of Signal Hill are among the most well-educated in the nation: 41.38% of adults in Signal Hill have a bachelor's degree or even advanced degree, whereas the average US city has 21.84% holding at least a bachelor's degree.

The per capita income in Signal Hill in 2022 was $46,714, which is upper middle income relative to California, and wealthy relative to the rest of the US. This equates to an annual income of $186,856 for a family of four. However, Signal Hill contains both very wealthy and poor people as well.

Signal Hill is an extremely ethnically-diverse city. The people who call Signal Hill home describe themselves as belonging to a variety of racial and ethnic groups. People of Hispanic or Latino origin are the most prevalent group in Signal Hill, accounting for 39.57% of the city’s residents (people of Hispanic or Latino origin can be of any race). The greatest number of Signal Hill residents report their race to be White, followed by Asian. Important ancestries of people in Signal Hill include English, Irish, German, French, and Italian.

Foreign born people are also an important part of Signal Hill's cultural character, accounting for 24.74% of the city’s population.

The most common language spoken in Signal Hill is English. Other important languages spoken here include Spanish and Mon-Khmer (Cambodian).