Fillmore is a medium-sized city located in the state of California. With a population of 16,657 people and three associated neighborhoods, Fillmore is the 346th largest community in California.

Housing costs in Fillmore 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.

A relatively large number of people in Fillmore telecommute to their jobs. Overall, about 7.24% 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 Fillmore, however, the average commute to work is quite long. On average, people spend 31.68 minutes each day getting to work, which is significantly higher than the national average.

The percentage of adults in Fillmore with college degrees is slightly lower than the national average of 21.84% for all communities. 16.71% of adults in Fillmore have a bachelor's degree or advanced degree.

The per capita income in Fillmore in 2022 was $32,110, which is lower middle income relative to California, and middle income relative to the rest of the US. This equates to an annual income of $128,440 for a family of four. However, Fillmore contains both very wealthy and poor people as well.

Fillmore is an extremely ethnically-diverse city. The people who call Fillmore 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 Fillmore, accounting for 71.31% of the city’s residents (people of Hispanic or Latino origin can be of any race). The greatest number of Fillmore residents report their race to be White, followed by Asian. Important ancestries of people in Fillmore include English, Irish, German, Italian, and Scottish.

Foreign born people are also an important part of Fillmore's cultural character, accounting for 19.22% of the city’s population.

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