Hermiston is a medium-sized city located in the state of Oregon. With a population of 19,423 people and five associated neighborhoods, Hermiston is the 32nd largest community in Oregon.

The percentage of adults in Hermiston with college degrees is slightly lower than the national average of 21.84% for all communities. 16.51% of adults in Hermiston have a bachelor's degree or advanced degree.

The per capita income in Hermiston in 2022 was $28,035, which is lower middle income relative to Oregon and the nation. This equates to an annual income of $112,140 for a family of four. However, Hermiston contains both very wealthy and poor people as well.

Hermiston is an extremely ethnically-diverse city. The people who call Hermiston 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 Hermiston, accounting for 52.22% of the city’s residents (people of Hispanic or Latino origin can be of any race). The greatest number of Hermiston residents report their race to be White, followed by Black or African-American. Important ancestries of people in Hermiston include German, English, Irish, Norwegian, and Italian.

Hermiston also has a high percentage of its population that was born in another country: 18.35%.

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