Holtville is a somewhat small city located in the state of California. With a population of 5,612 people and two associated neighborhoods, Holtville is the 503rd largest community in California.

Being a small city, Holtville does not have a public transit system used by locals to get to and from work.

The citizens of Holtville are slightly less educated than the national average of 21.84% for the average city or town: 16.62% of adults in Holtville have a bachelor's degree or advanced degree

The per capita income in Holtville in 2022 was $23,880, which is low income relative to California and the nation. This equates to an annual income of $95,520 for a family of four. However, Holtville contains both very wealthy and poor people as well.

Holtville is an extremely ethnically-diverse city. The people who call Holtville 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 Holtville, accounting for 85.83% of the city’s residents (people of Hispanic or Latino origin can be of any race). The greatest number of Holtville residents report their race to be White, followed by Asian. Important ancestries of people in Holtville include German, English, European, Swiss, and Italian.

Foreign born people are also an important part of Holtville's cultural character, accounting for 37.08% of the city’s population.

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