Canonsburg is a city located in Pennsylvania. With a 2020 population of 8,757, it is the 82nd largest city in Pennsylvania and the 3371st largest city in the United States. Canonsburg is currently declining at a rate of -0.31% annually and its population has decreased by -2.61% since the most recent census, which recorded a population of 8,992 in 2010. Canonsburg reached it's highest population of 12,599 in 1940. Spanning over 2 miles, Canonsburg has a population density of 3,791 people per square mile.
The average household income in Canonsburg is $62,375 with a poverty rate of 10.68%. The median rental costs in recent years comes to $764 per month, and the median house value is $138,900. The median age in Canonsburg is 39.6 years, 38.7 years for males, and 40.7 years for females. For every 100 females there are 91.1 males.