Piqua is a medium-sized city located in the state of Ohio. With a population of 20,747 people and five associated neighborhoods, Piqua is the 85th largest community in Ohio. Piqua has a large stock of pre-World War II architecture, making it one of the older and more historic cities in the country.

Being a small city, Piqua does not have a public transit system used by locals to get to and from work.

The percentage of adults in Piqua with college degrees is slightly lower than the national average of 21.84% for all communities. 13.94% of adults in Piqua have a bachelor's degree or advanced degree.

The per capita income in Piqua in 2022 was $30,457, which is middle income relative to Ohio, and lower middle income relative to the rest of the US. This equates to an annual income of $121,828 for a family of four. However, Piqua contains both very wealthy and poor people as well.

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

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