Butler is a city located in Pennsylvania. With a 2020 population of 12,851, it is the 48th largest city in Pennsylvania and the 2587th largest city in the United States. Butler is currently declining at a rate of -0.55% annually and its population has decreased by -6.59% since the most recent census, which recorded a population of 13,757 in 2010. Butler reached it's highest population of 24,477 in 1940. Spanning over 3 miles, Butler has a population density of 4,727 people per square mile.
The average household income in Butler is $47,463 with a poverty rate of 26.92%. The median rental costs in recent years comes to $658 per month, and the median house value is $98,900. The median age in Butler is 38.3 years, 37.8 years for males, and 38.8 years for females. For every 100 females there are 97.2 males.