Wilmette is a city located in Cook County Illinois. With a 2020 population of 26,827, it is the 79th largest city in Illinois and the 1435th largest city in the United States . Wilmette is currently declining at a rate of -0.49% annually and its population has decreased by -0.96% since the most recent census, which recorded a population of 27,087 in 2010. Wilmette reached it's highest population of 32,134 in 1970. Spanning over 5 miles, Wilmette has a population density of 4,966 people per square mile.
The average household income in Wilmette is $243,546 with a poverty rate of 3.07%. The median rental costs in recent years comes to $1,484 per month, and the median house value is $707,800. The median age in Wilmette is 45.5 years, 45 years for males, and 46 years for females.