Niles is a medium-sized city located in the state of Ohio. With a population of 18,256 people and five associated neighborhoods, Niles is the 100th largest community in Ohio.

The percentage of adults in Niles who are college-educated is close to the national average for all communities of 21.84%: 20.21% of the adults in Niles have a bachelor's degree or advanced degree.

The per capita income in Niles in 2022 was $31,216, which is middle income relative to Ohio and the nation. This equates to an annual income of $124,864 for a family of four. However, Niles contains both very wealthy and poor people as well.

The people who call Niles home describe themselves as belonging to a variety of racial and ethnic groups. The greatest number of Niles residents report their race to be White, followed by Black or African-American. Important ancestries of people in Niles include Italian, Irish, German, English, and Croatian.

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