Sedalia is a city located in Pettis County Missouri. It is also the county seat of Pettis County. With a 2020 population of 21,521, it is the 32nd largest city in Missouri and the 1750th largest city in the United States . Sedalia is currently declining at a rate of -0.25% annually but its population has increased by 0.63% since the most recent census, which recorded a population of 21,387 in 2010. Sedalia reached it's highest population of 23,874 in 1960. Spanning over 13 miles, Sedalia has a population density of 1,597 people per square mile.
The average household income in Sedalia is $53,640 with a poverty rate of 19.41%. The median rental costs in recent years comes to $704 per month, and the median house value is $90,500. The median age in Sedalia is 36.1 years, 33.9 years for males, and 38.2 years for females.