New Douglas is a city located in Madison County Illinois. With a 2020 population of 303, it is the 1013th largest city in Illinois and the 15278th largest city in the United States . New Douglas is currently declining at a rate of -0.66% annually and its population has decreased by -5.02% since the most recent census, which recorded a population of 319 in 2010. New Douglas reached it's highest population of in . Spanning over 1 miles, New Douglas has a population density of 289 people per square mile.
The average household income in New Douglas is $76,431 with a poverty rate of 11.56%. The median rental costs in recent years comes to $785 per month, and the median house value is $104,900. The median age in New Douglas is 43 years, 44.3 years for males, and 41.6 years for females.