Middletown is a larger medium-sized city located in the state of Ohio. With a population of 51,229 people and 23 associated neighborhoods, Middletown is the 17th largest community in Ohio.

In terms of college education, the citizens of Middletown rank slightly lower than the national average. 14.32% of adults 25 and older in Middletown have a bachelor's degree or advanced degree, while 21.84% of adults have a 4-year degree or higher in the average American community.

The per capita income in Middletown in 2018 was $28,189, which is lower middle income relative to Ohio and the nation. This equates to an annual income of $112,756 for a family of four. However, Middletown contains both very wealthy and poor people as well.

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

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