State size comparison
Pennsylvania is about 2.3 times smaller than Colorado.
Colorado is approximately 268,627 sq km, while Pennsylvania is approximately 116,075 sq km, making Pennsylvania 43.21% the size of Colorado. Meanwhile, the population of Colorado is ~5.0 million people (7.7 million more people live in Pennsylvania).
This to-scale comparison of Colorado vs. Pennsylvania uses the Mercator projection, which distorts the size of regions near the poles. Learn more. Note: Try dragging the outline to reposition.