Clearlake is a medium-sized city located in the state of California. With a population of 16,693 people and five associated neighborhoods, Clearlake is the 343rd largest community in California.

Telecommuters are a relatively large percentage of the workforce: 11.61% 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.

The citizens of Clearlake have a very low rate of college education: just 7.80% of people over 25 have a bachelor's degree or advanced degree, compared to a national average of 21.84% for all cities.

The per capita income in Clearlake in 2018 was $20,089, which is low income relative to California and the nation. This equates to an annual income of $80,356 for a family of four. However, Clearlake contains both very wealthy and poor people as well.

Clearlake is an extremely ethnically-diverse city. The people who call Clearlake home describe themselves as belonging to a variety of racial and ethnic groups. The greatest number of Clearlake residents report their race to be White, followed by Black or African-American. Clearlake also has a sizeable Hispanic population (people of Hispanic origin can be of any race). People of Hispanic or Latino origin account for 30.32% of the city’s residents. Important ancestries of people in Clearlake include Irish, English, German, Italian, and French.

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