Henry is a city located in Marshall County Illinois. Henry has a 2020 population of 2,406. Henry is currently declining at a rate of -0.50% annually and its population has decreased by -10.82% since the most recent census, which recorded a population of 2,698 in 2010. Henry reached it's highest population of 2,698 in 2010.
The average household income in Henry is $63,696 with a poverty rate of 13.23%. The median rental costs in recent years comes to $534 per month, and the median house value is $95,500. The median age in Henry is 40.3 years, 40.2 years for males, and 40.4 years for females.