Hartford is a city located in Madison County Illinois. With a 2020 population of 1,313, it is the 579th largest city in Illinois and the 9215th largest city in the United States . Hartford is currently declining at a rate of -1.06% annually and its population has decreased by -8.12% since the most recent census, which recorded a population of 1,429 in 2010. Hartford reached it's highest population of in . Spanning over 5 miles, Hartford has a population density of 254 people per square mile.
The average household income in Hartford is $65,119 with a poverty rate of 14.18%. The median rental costs in recent years comes to $901 per month, and the median house value is $76,400. The median age in Hartford is 33.8 years, 35.7 years for males, and 32.6 years for females.