Pearl City is a city located in Stephenson County Illinois. With a 2020 population of 769, it is the 728th largest city in Illinois and the 11467th largest city in the United States . Pearl City is currently declining at a rate of -0.90% annually and its population has decreased by -8.23% since the most recent census, which recorded a population of 838 in 2010. Pearl City reached it's highest population of in . Spanning over 1 miles, Pearl City has a population density of 1,200 people per square mile.
The average household income in Pearl City is $71,625 with a poverty rate of 12.79%. The median rental costs in recent years comes to $631 per month, and the median house value is $96,600. The median age in Pearl City is 40.6 years, 41.4 years for males, and 40.3 years for females.