Abingdon is a city located in Knox County Illinois. With a 2020 population of 3,007, it is the 416th largest city in Illinois and the 6256th largest city in the United States . Abingdon is currently declining at a rate of -0.73% annually and its population has decreased by -9.40% since the most recent census, which recorded a population of 3,319 in 2010. Abingdon reached it's highest population of 4,210 in 1980. Spanning over 1 miles, Abingdon has a population density of 2,111 people per square mile.
The average household income in Abingdon is $49,960 with a poverty rate of 24.94%. The median rental costs in recent years comes to $547 per month, and the median house value is $61,700. The median age in Abingdon is 39.2 years, 38.9 years for males, and 39.4 years for females.