Baldwin City is a city located in Kansas. With a 2020 population of 4,571, it is the 66th largest city in Kansas and the 5007th largest city in the United States. Baldwin City is currently declining at a rate of -1.30% annually but its population has increased by 1.24% since the most recent census, which recorded a population of 4,515 in 2010. Baldwin City reached it's highest population of 4,699 in 2016. Spanning over 3 miles, Baldwin City has a population density of 1,711 people per square mile.
The average household income in Baldwin City is $79,700 with a poverty rate of 9.33%. The median rental costs in recent years comes to $915 per month, and the median house value is $168,400. The median age in Baldwin City is 31.8 years, 31.1 years for males, and 33.6 years for females. For every 100 females there are 97.6 males.