Vacaville is a larger medium-sized city located in the state of California. With a population of 103,078 people and 22 constituent neighborhoods, Vacaville is the 74th largest community in California.

Housing costs in Vacaville 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.

There are quite a few people in the armed forces living in Vacaville, and when you visit or drive around town, you will see military people in and out of uniform, shopping, enjoying life, and being part of the community.

Telecommuters are a relatively large percentage of the workforce: 8.26% 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 overall education level of Vacaville is somewhat higher than in the average US city of 21.84%: 25.02% of adults 25 and older in the city have at least a bachelor's degree.

The per capita income in Vacaville in 2018 was $40,209, which is upper middle income relative to California and the nation. This equates to an annual income of $160,836 for a family of four. However, Vacaville contains both very wealthy and poor people as well.

Vacaville is an extremely ethnically-diverse city. The people who call Vacaville home describe themselves as belonging to a variety of racial and ethnic groups. The greatest number of Vacaville residents report their race to be White, followed by Black or African-American. Vacaville also has a sizeable Hispanic population (people of Hispanic origin can be of any race). People of Hispanic or Latino origin account for 25.66% of the city’s residents. Important ancestries of people in Vacaville include European, German, Irish, English, and Italian.

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