Suisun City is a medium-sized city located in the state of California. With a population of 29,614 people and five associated neighborhoods, Suisun City is the 261st largest community in California.

In Suisun City, however, the average commute to work is quite long. On average, people spend 30.52 minutes each day getting to work, which is significantly higher than the national average.

The citizens of Suisun City are slightly better educated than the national average of 21.84% for all cities and towns, with 21.13% of adults in Suisun City having a bachelor's degree or advanced degree.

The per capita income in Suisun City in 2022 was $37,624, which is middle income relative to California and the nation. This equates to an annual income of $150,496 for a family of four. However, Suisun City contains both very wealthy and poor people as well.

Suisun City is an extremely ethnically-diverse city. The people who call Suisun City 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 Suisun City, accounting for 30.66% of the city’s residents (people of Hispanic or Latino origin can be of any race). The greatest number of Suisun City residents report their race to be White, followed by Black or African-American. Important ancestries of people in Suisun City include German, Irish, English, European, and Italian.

Foreign born people are also an important part of Suisun City's cultural character, accounting for 21.41% of the city’s population.

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