Mount Oliver is a city located in Pennsylvania. With a 2020 population of 3,241, it is the 294th largest city in Pennsylvania and the 6011th largest city in the United States. Mount Oliver is currently declining at a rate of -0.80% annually and its population has decreased by -4.76% since the most recent census, which recorded a population of 3,403 in 2010. Mount Oliver reached it's highest population of 7,071 in 1930. Spanning over 0 miles, Mount Oliver has a population density of 9,546 people per square mile.
The average household income in Mount Oliver is $65,621 with a poverty rate of 28.94%. The median rental costs in recent years comes to $761 per month, and the median house value is $57,500. The median age in Mount Oliver is 32.8 years, 33.7 years for males, and 29.8 years for females. For every 100 females there are 86.2 males.