Westmont is a city located in Illinois. With a 2020 population of 24,093, it is the 95th largest city in Illinois and the 1597th largest city in the United States . Westmont is currently declining at a rate of -0.72% annually and its population has decreased by -2.40% since the most recent census, which recorded a population of 24,685 in 2010. Westmont reached it's highest population of in . Spanning over 5 miles, Westmont has a population density of 4,820 people per square mile.
The average household income in Westmont is $90,780 with a poverty rate of 13.63%. The median rental costs in recent years comes to $1,139 per month, and the median house value is $301,900. The median age in Westmont is 39.6 years, 37.8 years for males, and 43 years for females.