Liberty is a city in Clay County, Missouri, United States and is a suburb of Kansas City, located in the Kansas City Metropolitan Area. As of the 2010 United States Census the population was 29,149. Liberty is the county seat of Clay County. Liberty is home to William Jewell College.
Liberty was settled in 1822, and shortly later became the county seat of Clay County. The city was named for the American concept of liberty.
In 1830, David Rice Atchison established a law office in Liberty. He was joined three years later by colleague Alexander William Doniphan. The two argued cases defending the rights of Mormon settlers in Jackson County, served Northwest Missouri in Missouri's General Assembly, and labored for the addition of the Platte Purchase to Missouri's boundaries.
In October 1838, the two were ordered by Governor Lilburn Boggs to arrest Mormon prophet Joseph Smith Jr. at the Far West settlement in Caldwell County.