Cambridge is a city located in Henry County Illinois. Cambridge has a 2020 population of 2,413. It is also the county seat of Henry County. Cambridge is currently declining at a rate of -0.33% annually and its population has decreased by -4.40% since the most recent census, which recorded a population of 2,524 in 2010. Cambridge reached it's highest population of 2,524 in 2010.
The average household income in Cambridge is $73,432 with a poverty rate of 9.85%. The median rental costs in recent years comes to $706 per month, and the median house value is $107,300. The median age in Cambridge is 42.4 years, 37.8 years for males, and 49.9 years for females.