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History and Facts of Missouri Counties

Missouri Counties – The Missouri Territory was created on June 4, 1812. The State of Missouri was founded as the 24th state on Aug. 10, 1821. States bordering Missouri are ArkansasIllinoisIowaKansasKentuckyNebraskaOklahoma and  Tennessee. Missouri has 114 Counties.

List of Missouri Counties

Missouri is divided into 114 counties.

List of Old Former / Extinct Missouri Counties

Missouri has counties that no longer are in existence. A lot of these counties were established and disbanded within the 19th century; county borders have modified very little since 1900 in the vast most of states.

The below Missouri counties no longer exist:

?? County, Missouri

Created ? from ?. It was abolished ? and re-established as ? County on ?.

  • Clark County, Missouri: Renamed Cleveland County in 1885
  • Decatur County, Missouri: Formed in 1841 as Ozark, renamed in 1843 to Decatur, renamed back to Ozark in 1845
  • Dodge County, Missouri: Formed in 1849. Abolished in 1853
  • Hempstead County, Missouri: Formed in 1818 from New Madrid County. Abolished in 1819; became part of the Arkansas Territory
  • Lillard County, Missouri: Formed in 1821 from Cooper County; Abolished in 1825; divided into Jackson and LaFayette Counties
  • Lawrence County, Missouri: Formed in 1815 from New Madrid County. Abolished in 1819; became part of the Arkansas Territory
  • Kinderhook County, Missouri: Formed in1841 from Benton, Pulaski and Morgan Counties, renamed in 1843 to Camden County
  • Niangua County, Missouri: Formed in1841 from Polk County, renamed in 1844 to Dallas County
  • Seneca County, Missouri: Formed in 1847 from Newton County; renamed to McDonald County in 1849
  • Van Buren County, Missouri: Formed as Van Buren, renamed to Cass County in 1849
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Map of Missouri County Boundary Changes from 1804 to 1889

This Interactive Map of Missouri Counties show the historical boundaries, names, organization, and attachments of every county, extinct county and unsuccessful county proposal from the creation of Missouri from 1804-1889.

Fun Facts about Missouri Counties

County Name Facts

The County names:

  • 0 of them named for Native American words or people,
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Counties by Year

In 1799 the first two Missouri counties were formed. They were Adams and Jefferson Counties. The last county to be formed was Humphreys County in 1918.

  • ? County was the first county created on ?.
  •  The last county to be formed was ? County on ?.
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Facts for County Size

  • ? County (000 sq mi) is the largest county in Missouri.
  • ? County (000 sq mi) is the smallest county in Missouri.

Facts for County Population (2017 Est.)

  • ? County (000) is the most populated county in Missouri.
  • ? County (000) is the least populated county in Missouri.

Facts for Missouri Counties and Cities

Missouri’s 10 largest cities (2010) are:

  1. Birmingham (000) is in ? County and ? Counties
  2. Kansas City, St. Louis, Springfield, Independence, Columbia, Lee’s Summit, O’Fallon, St. Joseph, St. Charles and St. Peter’s