Madisonville is a city located in Kentucky. With a 2020 population of 18,581, it is the 22nd largest city in Kentucky and the 1957th largest city in the United States. Madisonville is currently declining at a rate of -0.67% annually and its population has decreased by -5.16% since the most recent census, which recorded a population of 19,591 in 2010. Madisonville reached it's highest population of 19,837 in 2010. Spanning over 19 miles, Madisonville has a population density of 1,046 people per square mile.
The average household income in Madisonville is $58,318 with a poverty rate of 21.03%. The median rental costs in recent years comes to $727 per month, and the median house value is $125,400. The median age in Madisonville is 37.6 years, 34.7 years for males, and 41.5 years for females. For every 100 females there are 95.1 males.