Piqua is a city located in Miami County Ohio. With a 2020 population of 21,696, it is the 77th largest city in Ohio and the 1733rd largest city in the United States . Piqua is currently growing at a rate of 0.85% annually and its population has increased by 5.72% since the most recent census, which recorded a population of 20,522 in 2010. Piqua reached it's highest population of 21,696 in 2021. Spanning over 12 miles, Piqua has a population density of 1,863 people per square mile.
The average household income in Piqua is $55,865 with a poverty rate of 13.73%. The median rental costs in recent years comes to $734 per month, and the median house value is $87,100. The median age in Piqua is 38.4 years, 36.7 years for males, and 39.5 years for females.