List of counties in Missouri

The US -American state of Missouri 's 114 counties divided. The city of St. Louis does not belong to any county.

The official abbreviation for Missouri is MO and the FIPS code is 29 . The FIPS code of each individual counties therefore always starts with 29 , followed by a three-digit number for each county.

The population is based on the 2010 census .

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county	FIPS code	County Seat	founding	origin	Origin of name	Residents 2010	surface
Adair	001	Kirksville	1841	Macon County	John Adair (1757–1840) - seventh governor of Kentucky	25,607	1,471 km²
Andrew	003	Savannah	1841	Plate Purchase - Land acquisition by Indians in 1836	Andrew Jackson Davis (1826-1910) - spiritualist from St. Louis	17,291	1,127 km²
Atchison	005	Rock port	1843	Plate Purchase - Land acquisition by Indians in 1836	David Rice Atchison (1807–1886) - US Senator from Missouri (1844–1855)	5,685	1,412 km²
Audrain	007	Mexico	1831	Callaway, Monroe, and Ralls Counties	James Hunter Audrain - State Senator and Militia Officer	25,529	1,795 km²
Barry	009	Cassville	1835	Greene County	William T. Barry (1784–1835) - US Secretary of Post	335,597	2,018 km²
Barton	011	Lamar	1855	Jasper County	David Barton (1783–1837) - one of the first US Senators from Missouri	12,402	1,538 km²
Bates	013	butler	1841	Van Buren (now Cass) County	Frederick Bates (1777–1825) - Second Governor of Missouri	17,049	2,196 km²
Benton	015	Warsaw	1835	Pettis and Greene Counties	Thomas Hart Benton (1782-1858) - US Senator from Missouri (1820-1851)	19,056	1,829 km²
Bollinger	017	Marble Hill	1851	Cape Girardeau, Madison, Stoddard, and Wayne Counties	George Frederick Bollinger (1770–1842) - early settler in Missouri	12,363	1,608 km²
Boone	019	Columbia	1921	Howard County	Daniel Boone (1734-1820) - pioneer and hunter	162,642	1,774 km²
Buchanan	021	Saint Joseph	1838	Plate Purchase - Land acquisition by Indians in 1836	James Buchanan (1791–1868) - 15th President of the United States	89.201	1,062 km²
butler	023	Poplar Bluff	1849	Wayne County	William Orlando Butler (1791–1880) - Member of the US House of Representatives	42,794	1,808 km²
Caldwell	025	Kingston	1836	Ray County	Controversial: either the scout John Caldwell or Matthew Caldwell , co-signer of the Texas Declaration of Independence	9.424	1,111 km²
Callaway	027	Fulton	1821	Boone, Howard, and Montgomery Counties	James Callaway (1783–1815) - grandson of Daniel Boone and soldier in the British-American War	44,332	2,173 km²
Camden	029	Camdenton	1841	Benton, Morgan, and Pulaski Counties	Charles Pratt, 1st Earl Camden (1714–1794) - English lawyer and politician	44.002	1,696 km²
Cape Girardeau	031	Jackson	1812	One of the five original counties	Sieur de Girardot - French officer and explorer	75,674	1,500 km²
Carroll	033	Carrollton	1833	Ray County	Charles Carroll (1737–1832) - one of the founding fathers of the United States	9,295	1,800 km²
Carter	035	Van Buren	1859	Oregon, Reynolds, Ripley, and Shannon Counties	Zimri Carter - one of the earliest white settlers	6.265	1,316 km²
Cass	037	Harrisonville	1833	Jackson County	Lewis Cass (1782–1866) - United States Senator from Michigan , Secretary of War, and Secretary of State for the United States	99,478	1,810 km²
Cedar	039	Stockton	1845	Dade and St. Clair Counties	Virginian Juniper (English: Eastern Red Cedar ) - is common in the region	13,982	1,233 km²
Chariton	041	Keytesville	1821	Howard County	Chariton River - tributary of the Missouri	7,831	1,958 km²
Christian	043	Ozark	1859	Greene, Taney, and Webster Counties	William Christian (1743–1786) - American Revolutionary War officer and politician	77,422	1,458 km²
Clark	045	Kahoka	1836	Lewis County	William Clark (1770–1838) - explorer, governor of the Missouri Territory (1813–1820)	7.139	1,313 km²
Clay	047	Liberty	1822	Ray County	Henry Clay (1777-1852) - Member of the US House of Representatives , US Senator from Kentucky and US Secretary of State	221,939	1,026 km²
Clinton	049	Plattsburg	1833	Clay County	George Clinton (1739–1812) - US Vice President (1805–1812), was one of the Founding Fathers of the United States	20,743	1,085 km²
Cole	051	Jefferson City	1820	Cooper County	Stephen Cole one of the first settlers	75,990	1,015 km²
cooper	053	Boonville	1818	Howard County	Sarshel Benjamin Cooper one of the first settlers	17.601	1,463 km²
Crawford	055	Steelville	1829	Gasconade County	William Harris Crawford (1772–1834) - US Senator from Georgia , Secretary of the Treasury, and Secretary of War of the United States	24,696	1,924 km²
Dade	057	Greenfield	1841	Barry and Polk County	Francis L. Dade (1793 -1835?) - as an officer in the Seminolenkriegen fallen	7,883	1,269 km²
Dallas	059	Buffalo	1841	Polk County	George M. Dallas (1792–1864) - Vice President of the United States (1845–1849)	16,777	1,404 km²
Daviess	061	Gallatin	1836	Ray County	Joseph Hamilton Daviess (1774-1811) - was an officer in the militia of Indiana in the Battle of Tippecanoe	8,433	1,469 km²
DeKalb	063	Maysville	1843	Clinton County	Johann von Kalb (1721–1780) - General of the Continental Army in the American War of Independence	12,892	1,098 km²
Dent	065	Salem	1851	Crawford and Shannon Counties	James Dent one of the first settlers	15,657	1,953 km²
Douglas	067	Ava	1857	Ozark County	Stephen A. Douglas (1813–1861) - losing presidential candidate to Abraham Lincoln in 1860	13,684	2,111 km²
Dunklin	069	Kennett	1843	Stoddard County	Daniel Dunklin (1790–1844) - fifth governor of Missouri	31,953	1,414 km²
Franklin	071	union	1818	St. Louis County	Benjamin Franklin (1706–1790) - one of the founding fathers of the United States	101,492	2,388 km²
Gas conade	073	Hermann	1821	Franklin County	Gasconade River - tributary of the Missouri	15,222	1,347 km²
gentry	075	Albany	1841	Clinton County	Richard Gentry (1788–1837) - US Army officer	6,738	1,274 km²
Greene	077	Springfield	1833	Crawford and Wayne County	Nathanael Greene (1742–1786) - General of the Continental Army in the American War of Independence	275.174	1,748 km²
Grundy	079	Trenton	1839	Livingston County	Felix Grundy (1777-1840) - US Congressman and Attorney General	10,261	1,129 km²
Harrison	081	Bethany	1843	Daviess County	Albert Galliton Harrison (1800–1839) - Member of the United States House of Representatives (1835–1839)	8,957	1,878 km²
Henry	083	Clinton	1834	Lillard (now Lafayette) County	Patrick Henry (1736–1799) - first governor of Virginia after the United States declared independence	22,272	1,818 km²
hickory	085	Hermitage	1845	Benton and Polk Counties	Andrew Jackson (1767-1845) - President of the United States, nicknamed Old Hickory wore	9,627	1,033 km²
Get	087	Oregon	1841	Plate Purchase - Land acquisition by Indians in 1836	David Rice Holt - Missouri MP	4,912	1,197 km²
Howard	089	Fayette	1816	St. Charles and St. Louis Counties	Benjamin Howard (1760–1814) - Brigadier General in the British-American War of 1812 and Governor of the Missouri Territory	10.144	1,207 km²
Howell	091	West Plains	1857	Oregon County	James Howell - one of the first settlers	40,400	2,404 km²
Iron	093	Ironton	1857	Madison, Reynolds, St. Francois, Washington, and Wayne Counties	Extensive iron ore deposits in the region	10,630	1,427 km²
Jackson	095	Kansas City	1826	Lillard (now Lafayette) County	Andrew Jackson (1767–1845) - President of the United States (1829–1837)	674.158	1,567 km²
Jasper	097	Carthage	1841	Barry County	William Jasper (approx. 1750–1779) - participant in the American Revolutionary War	117,404	1,658 km²
Jefferson	099	Hillsboro	1818	St. Louis and Ste. Genevieve County	Thomas Jefferson (1743–1826) - third President and one of the Founding Fathers of the United States	218.733	1,702 km²
Johnson	101	Warrensburg	1834	Lillard (now Lafayette) County	Richard M. Johnson (1780–1850) - Vice President of the United States (1837–1841)	52,595	2,152 km²
Knox	103	Edina	1843	Scotland County	Henry Knox (1750–1806) - Officer in the Continental Army and First Secretary of War of the United States (1789–1794)	4.131	1,311 km²
Laclede	105	Lebanon	1849	Camden, Pulaski, and Wright Counties	Pierre Laclède (1729–1778) - founder of St. Louis	35,571	1,984 km²
Lafayette	107	Lexington	1821	Cooper County	Marquis de Lafayette (1757–1834) - French general in the American War of Independence	33,381	1,629 km²
Lawrence	109	Mount Vernon	1843	Barry and Dade County	James Lawrence (1781–1813) - American naval officer	38,634	1,588 km²
Lewis	111	Monticello	1833	Marion County	Meriwether Lewis (1774-1809) - explorer and governor of the Louisiana Territory (1808-1809)	10,211	1,308 km²
Lincoln	113	Troy	1818	St. Charles County	Benjamin Lincoln (1733-1810) - General in the Continental Army in the American War of Independence	52,566	1,632 km²
Linn	115	Linneus	1837	Chariton County	Lewis F. Linn (1795–1843) - US Senator from Missouri	12,761	1,606 km²
Livingston	117	Chillicothe	1837	Carroll County	Edward Livingston (1764-1836) - US Congressman and Secretary of State (1831-1833)	15,195	1,386 km²
Macon	121	Macon	1837	Chariton and Randolph Counties	Nathaniel Macon (1757-1837) - Member of the House of Representatives (1791-1815)	15,566	2,082 km²
Madison	123	Fredericktown	1818	Cape Girardeau and Sainte Genevieve Counties	James Madison (1751–1836) - fourth President and one of the Founding Fathers of the United States	12,226	1,287 km²
Maries	125	Vienna	1855	Osage and Pulaski Counties	The Maries River flows through the county	9,176	1,368 km²
Marion	127	Palmyra	1826	Ralls County	Francis Marion (1732–1795) - Continental Army officer in the American War of Independence	28,781	1,134 km²
MC Donald	119	Pineville	1847	Newton County	Alexander McDonald - participant in the American Revolutionary War	23,083	1,399 km²
Mercer	129	Princeton	1845	Grundy County	John Francis Mercer (1759–1821) - Member of the United States House of Representatives (1792–1794) and Governor of Maryland (1801–1803)	3,785	1,176 km²
Miller	131	Tuscumbia	1837	Cole and Pulaski Counties	John Miller (1781–1846) - fourth Governor of Missouri (1826–1832) and Member of the United States House of Representatives (1837–1843)	24,748	1,533 km²
Mississippi	133	Charleston	1842	Scott County	Mississippi River - forms the eastern border of the county and the state of Missouri	14,385	1,070 km²
Moniteau	135	California	1845	Cole and Morgan Counties	The Moniteau Creek flows through the county	15,607	1,080 km²
Monroe	137	Paris	1831	Ralls County	James Monroe (1758–1831) - fifth President of the USA, During his term in office, the Missouri Compromise was drawn up	8,840	1,673 km²
Montgomery	139	Montgomery City	1818	St. Charles County	Richard Montgomery (1738–1775) - General of the Continental Army in the American War of Independence	12,236	1,396 km²
Morgan	141	Versailles	1833	Cooper County	Daniel Morgan (politician) Daniel Morgan (1736–1802) - officer in the American Revolutionary War and member of the US House of Representatives	20,565	1,549 km²
New Madrid	143	New Madrid	1812	One of the five original counties	The County Seat New Madrid was after the Spanish capital Madrid named	18,956	1,756 km²
Newton	145	Neosho	1838	Barry County	John Newton (1755-1780) - participant in the American Revolutionary War	58.114	1,621 km²
Nodaway	147	Maryville	1843	Plate Purchase - Land acquisition by Indians in 1836	Nodaway River - a tributary of the Missouri	23,370	2,271 km²
Oregon	149	Alton	1841	Ripley County	Oregon Territory	10,881	2,051 km²
Osage	151	Linn	1841	Gasconade County	Osage River - a tributary of the Missouri	13,878	1,570 km²
Ozark	153	Gainesville	1841	Taney County	Ozark Plateau	9,723	1,935 km²
Pemiscot	155	Caruthersville	1851	New Madrid County	Indian word for "liquid mud"	18,296	1,277 km²
Perry	157	Perryville	1821	Ste. Geneviere County	Oliver Hazard Perry (1785–1819) - naval officer in the British-American War of 1812	18,972	1,230 km²
Pettis	159	Sedalia	1821	Cooper and Saline Counties	Spencer Darwin Pettis (1802–1831) - Secretary of State in Missouri (1826–1828) and Member of the United States House of Representatives (1829–1831)	42,201	1,774 km²
Phelps	161	Rolla	1857	Crawford County	John S. Phelps (1814–1886) - 23rd Governor of Missouri	45.156	1,743 km²
pike	163	Bowling green	1818	St. Charles County	Zebulon Pike (1779–1813) - officer and explorer	18,516	1,743 km²
plate	165	Platte City	1838	Plate Purchase - Land acquisition by Indians in 1836	Platte River - a tributary of the Missouri River	89,322	1,088 km²
Polk	167	Bolivar	1835	Greene County	James K. Polk (1795–1849) - Eleventh President of the United States	31,137	1,650 km²
Pulaski	169	Waynesville	1833	Crawford County	Kazimierz Pułaski (1745–1779) - Polish volunteer and general in the American War of Independence	52,274	1,417 km²
Putnam	171	Unionville	1843	Adair and Sullivan Counties	Israel Putnam (1718–1790) - General in the American War of Independence	4,979	1,342 km²
Ralls	173	New London	1821	Pike County	Daniel Ralls - Missouri MP	10.167	1,220 km²
Randolph	175	Huntsville	1829	Chariton and Ralls Counties	John Randolph of Roanoke (1773-1833) - US Congressman from Virginia	25,414	1,248 km²
Ray	177	Richmond	1820	Howard County	John Ray - Missouri MP	23,494	1,476 km²
Reynolds	179	Centerville	1845	Shannon County	Thomas Reynolds (1796–1844) - seventh Governor of Missouri (1840–1844)	6,696	2,100 km²
Ripley	181	Doniphan	1831	Wayne County	Eleazer Wheelock Ripley (1782–1839) - Brigadier General in the British-American War of 1812	14,100	1,632 km²
Saltworks	195	Marshall	1820	Cooper County	Local salt mines	23,370	1,958 km²
Schuyler	197	Lancaster	1843	Adair County	Philip Schuyler (1733–1804) - General in the American Revolutionary War and US Senator from New York	4,431	0798 km²
Scotland	199	Memphis	1841	Clark, Lewis and Shelby Counties	Scotland	4,843	1,134 km²
Scott	201	Benton	1822	New Madrid County	John Guier Scott (1819-1892) - Member of the US House of Representatives	39.191	1,090 km²
Shannon	203	Eminence	1837	Ripley County	George Shannon (1785–1836) - participant in the Lewis and Clark expedition	8,441	2,600 km²
Shelby	205	Shelbyville	1835	Marion County	Isaac Shelby (1750–1826) - first and fifth governors of Kentucky	6,373	1,298 km²
St. Charles	183	Saint Charles	1812	One of the five original Missouri counties	Charles Borromeo (1538–1584) - Italian cardinal , was venerated as a saint	360.485	1,453 km²
St. Clair	185	Osceola	1841	Rives County (now Henry County)	Arthur St. Clair (1736-1818) - General in the American Revolutionary War and politician	9,805	1,753 km²
St. Francois	187	Farmington	1821	Jefferson, Ste. Genevieve and Washington Counties	Francis of Assisi (1182–1226) - founder of the Franciscans	65,359	1,165 km²
St. Louis County	189	Clayton	1812	One of the five original Missouri counties	Louis IX (1214–1270) - King of France	998.954	1,316 km²
St. Louis City	510	St. Louis	1876	Referendum to separate the city from St. Louis County	Louis IX (1214–1270) - King of France	319.294	0160 km²
Ste. Genevieve	186	Ste. Genevieve	1812	One of the five original Missouri counties	Genoveva of Paris (422–502) - patron saint of Paris	18,145	1,300 km²
Stoddard	207	Bloomfield	1835	New Madrid County	Amos Stoddard (1762–1813) - Agent for the transition of Louisiana Territory to the United States after the Louisiana Purchase	29,968	2,142 km²
Stone	209	Galena	1851	Taney County	William Stone Judge in Taney County	32.202	1,199 km²
Sullivan	211	Milan	1843	Linn County	John Sullivan (1740–1795) - General in the American War of Independence	6,714	1,686 km²
Taney	213	Forsyth	1837	Greene County	Roger B. Taney (1777-1864) - Eleventh US attorney general , the fifth Chief Justice of the United States	51,675	1,637 km²
Texas	215	Houston	1843	Shannon County and Wright County	Republic of Texas	26,008	3,054 km²
Vernon	217	Nevada	1851	Bates County	Miles Vernon - Senator in Missouri	21,159	2,160 km²
Warren	219	Warrenton	1833	Montgomery County	Joseph Warren (1741–1775) - doctor and officer, killed in the American Revolutionary War	32,513	1,119 km²
Washington	221	Potosi	1813	Ste. Genevieve County	George Washington (1732–1799) - First President of the United States	25.195	1,968 km²
Wayne	223	Greenville	1818	Cape Girardeau and Lawrence Counties	Anthony Wayne (1745–1796) - American Revolutionary War general and politician	13,521	1,971 km²
Webster	225	Marshfield	1855	Greene County	Daniel Webster (1782–1852) - US Secretary of State	36,202	1,536 km²
Worth	227	Grant City	1861	Gentry County	William J. Worth (1794–1849) - US general during the Mexican-American War	2,171	0689 km²
Wright	229	Hartville	1841	Pulaski County	Silas Wright (1795–1847) - US Congressman , Governor of New York (1845–1846)	18,815	1,766 km²