Columbia is a city located in Pennsylvania. With a 2020 population of 10,330, it is the 65th largest city in Pennsylvania and the 3024th largest city in the United States. Columbia is currently declining at a rate of -0.24% annually and its population has decreased by -0.67% since the most recent census, which recorded a population of 10,400 in 2010. Columbia reached it's highest population of 12,316 in 1900. Spanning over 2 miles, Columbia has a population density of 4,279 people per square mile.
The average household income in Columbia is $55,852 with a poverty rate of 20.43%. The median rental costs in recent years comes to $804 per month, and the median house value is $107,900. The median age in Columbia is 37.6 years, 36.3 years for males, and 39.9 years for females. For every 100 females there are 93.5 males.