The population of Greenfield has a very low overall level of education: only 8.30% of people over 25 hold a 4-year college degree or higher.
The per capita income in Greenfield in 2018 was $19,758, which is low income relative to California and the nation. This equates to an annual income of $79,032 for a family of four. However, Greenfield contains both very wealthy and poor people as well.
Greenfield is an extremely ethnically-diverse city. The people who call Greenfield 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 Greenfield, accounting for 94.02% of the city’s residents (people of Hispanic or Latino origin can be of any race). The greatest number of Greenfield residents report their race to be White, followed by Asian. Important ancestries of people in Greenfield include English, Irish, German, Polish, and Portuguese.
Foreign born people are also an important part of Greenfield's cultural character, accounting for 40.98% of the city’s population.
The most common language spoken in Greenfield is Spanish. Other important languages spoken here include English and Italian.
