Gridley is a somewhat small city located in the state of California. With a population of 7,355 people and three associated neighborhoods, Gridley is the 460th largest community in California.

The citizens of Gridley are slightly less educated than the national average of 21.84% for the average city or town: 13.61% of adults in Gridley have a bachelor's degree or advanced degree

The per capita income in Gridley in 2022 was $27,510, which is lower middle income relative to California and the nation. This equates to an annual income of $110,040 for a family of four. However, Gridley contains both very wealthy and poor people as well.

Gridley is an extremely ethnically-diverse city. The people who call Gridley home describe themselves as belonging to a variety of racial and ethnic groups. The greatest number of Gridley residents report their race to be White, followed by Native American. Gridley also has a sizeable Hispanic population (people of Hispanic origin can be of any race). People of Hispanic or Latino origin account for 46.47% of the city’s residents. Important ancestries of people in Gridley include German, Irish, English, Scottish, and European.

Foreign born people are also an important part of Gridley's cultural character, accounting for 17.64% of the city’s population.

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