List of counties in Indiana
The U.S. state of Indiana has 92 counties. Each county serves as the local level of government within its borders. Although Indiana was organized into the United States since the Northwest Ordinance in 1787, its land was not always available for settlement. The Vincennes Tract, Clark's Grant and an area known as "The Gore" in southeastern Indiana (resulting from the Treaty of Greenville 1795) existed during the Northwest Territory. The remainder of Indiana land was acquired by Indian Removal Acts and purchases by treaty between 1804 and 1840. The largest purchase (called "Delaware New Purchase" or just "New Purchase") resulted from the Treaty of St. Mary's (1818) which acquired about 1/3 of the state in the central portion. All or most of 35 counties were eventually carved from the area. The oldest counties are generally in the south near the Ohio River, whereas newer ones were in the north in territory acquired later. Many of the final counties were formed subsequent to the acquisition and break up of the Big Miami Reserve (encompassing present day Howard County and parts of surrounding counties) between 1834 and 1840. The oldest and newest counties in Indiana are Knox County, created in 1790, and Newton County, created in 1859.
|Counties of Indiana|
|Location||State of Indiana|
|Populations||6,128 (Ohio) – 903,393 (Marion)|
|Areas||86 square miles (220 km2) (Ohio) – 657 square miles (1,700 km2) (Allen)|
As of the 2010 United States Census, the population of Indiana was 6,483,802, the average population of Indiana's 92 counties is 70,476, with Marion County as the most populous (903,393), and Ohio County (6,128) the least. 54 counties have 30,000 or more people; 17 counties have populations exceeding 100,000, five of which exceed 250,000; and only four counties have fewer than 10,000 people. The average land area is 396 square miles (1,030 km2). The largest county is Allen (657 sq. mi., 1,702 km²) and the smallest is Ohio (86 sq. mi., 223 km²). According to the Constitution of Indiana, no county may be created of less than 400 square miles (1,000 km2), nor may any county smaller than this be further reduced in size, which precludes any new counties.
County government in Indiana consists of two bodies, the county council and the commissioners.
Many Indiana counties are named for United States Founding Fathers and personalities of the American Revolutionary War, the War of 1812 and Battle of Tippecanoe; early leaders of Indiana Territory and Indiana, as well as surrounding states like Michigan and Kentucky; plus Native American tribes and geographical features.
The Federal Information Processing Standard (FIPS) code, which is used by the United States government to uniquely identify states and counties, is provided with each entry. Indiana's code is 18, which when combined with any county code would be written as 18XXX. The FIPS code for each county links to census data for that county.
In Indiana, the most commonly seen number associated with counties is the state county code, which is a sequential number based on the alphabetical order of the county. It has been used on automobile license plates since 1963. It first held a prominent place on the left side of the plates as part of the license plate number until the year 2008 when it was moved above the serial number and 2012 when it was moved to the lower right corner. On license plates, county codes 93, 95, and 97-99 were also used for Marion County in addition to 49. 94 and 96 were used for Lake County in addition to 45. These additional numbers ceased to be used as of 2008.
List of counties
||FIPS code||County seat||Est.||Origin||Etymology||BMV Number
|Adams County||001||Decatur||Feb 7, 1836||Adams New Purchase||U.S. President John Quincy Adams||1||34,387||339 sq mi|
|Allen County||003||Fort Wayne||Dec 12, 1823||Delaware New Purchase||Col. John Allen, Kentucky state senator||2||355,329||657 sq mi|
|Bartholomew County||005||Columbus||Jan 8, 1821||Jackson County and Delaware New Purchases||Lt. Col. Joseph Bartholomew, a hero of the Battle of Tippecanoe||3||76,794||407 sq mi|
|Benton County||007||Fowler||Feb 18, 1840||Jasper County||Thomas H. Benton, U.S. Senator from Missouri||4||8,854||406 sq mi|
|Blackford County||009||Hartford City||Feb 15, 1838||Jay County||Judge Isaac Blackford, Speaker of the Indiana House of Representatives and Chief Justice of the Indiana Supreme Court||5||12,766||165 sq mi|
|Boone County||011||Lebanon||Jan 29, 1830||Adams and Wabash New Purchases||Frontiersman Daniel Boone||6||56,640||423 sq mi|
|Brown County||013||Nashville||Feb 3, 1836||Bartholomew County |
|General Jacob Brown, hero of the War of 1812||7||15,242||312 sq mi|
|Carroll County||015||Delphi||Jan 17, 1828||Adams and Wabash New Purchases||Charles Carroll, signer of the Declaration of Independence||8||20,165||372 sq mi|
|Cass County||017||Logansport||Dec 18, 1828||Non-county Area||Gen. Lewis Cass, Governor of Michigan Territory and U.S. Secretary of State||9||38,966||412 sq mi|
|Clark County||019||Jeffersonville||Feb 3, 1801||Knox County||General George Rogers Clark, American Revolutionary War hero||10||110,232||373 sq mi|
|Clay County||021||Brazil||Feb 12, 1825||Owen County |
|U.S. Speaker of the House Henry Clay||11||26,890||358 sq mi|
|Clinton County||023||Frankfort||Jan 29, 1830||Adams and Wabash New Purchases||DeWitt Clinton, Governor of New York||12||33,224||405 sq mi|
|Crawford County||025||English||Jan 29, 1818||Orange County |
|Col. William Crawford, surveyor of the Midwest and hero of the Indian Wars||13||10,713||306 sq mi|
|Daviess County||027||Washington||Feb 2, 1818||Knox County||Col. Joseph Hamilton Daveiss, hero of the Battle of Tippecanoe||14||31,648||429 sq mi|
|Dearborn County||029||Lawrenceburg||Mar 7, 1803||Clark County, IN; Hamilton County, OH||U.S. Secretary of War Henry Dearborn||15||50,047||305 sq mi|
|Decatur County||031||Greensburg||Dec 12, 1821||Delaware New Purchase||Commodore Stephen Decatur, hero of the War of 1812||16||25,740||373 sq mi|
|DeKalb County||033||Auburn||Feb 7, 1835||Non-county Area||Johann de Kalb, German noble who trained colonial soldiers for the American Revolutionary War||17||40,285||363 sq mi|
|Delaware County||035||Muncie||Jan 26, 1827||Delaware New Purchase||Delaware Native American people||18||117,671||392 sq mi|
|Dubois County||037||Jasper||Dec 20, 1817||Perry County |
|Toussaint Dubois, hero of the Battle of Tippecanoe||19||41,889||427 sq mi|
|Elkhart County||039||Goshen||Jan 29, 1830||Non-county Area||Disputed, but possibly the Elkhart Native American people||20||197,559||463 sq mi|
|Fayette County||041||Connersville||Jan 29, 1818||Franklin Wayne County and Non-county Area||Marquis de la Fayette, French noble who trained colonial soldiers in the American Revolutionary War||21||24,277||215 sq mi|
|Floyd County||043||New Albany||Jan 2, 1819||Clark and Harrison Counties||Either John Floyd, a War of 1812 hero and Governor of Virginia, or early settler and state legislator Davis Floyd||22||74,578||148 sq mi|
|Fountain County||045||Covington||Dec 20, 1825||Montgomery County and Wabash New Purchase||Major James Fontaine, a hero of the American Revolutionary War||23||17,240||396 sq mi|
|Franklin County||047||Brookville||Feb 1, 1811||Clark County |
|Writer, orator, scholar, and founding father Benjamin Franklin||24||23,087||384 sq mi|
|Fulton County||049||Rochester||Feb 7, 1836||Non-county Area||Robert Fulton, developer of the steamboat||25||20,836||368 sq mi|
|Gibson County||051||Princeton||Apr 1, 1813||Knox County||John Gibson, secretary of the Indiana Territory||26||33,503||487 sq mi|
|Grant County||053||Marion||Feb 10, 1831||Madison County, Adams New Purchase and un-organized||Captains Samuel and Moses Grant, former American soldiers and early settlers||27||70,061||414 sq mi|
|Greene County||055||Bloomfield||Jan 5, 1821||Sullivan County |
|Gen. Nathanael Greene, hero of the American Revolutionary War||28||33,165||543 sq mi|
|Hamilton County||057||Noblesville||Jan 8, 1823||Delaware New Purchase||Alexander Hamilton, first Secretary of the Treasury and founding father||29||274,569||394 sq mi|
|Hancock County||059||Greenfield||Mar 1, 1828||Madison County||John Hancock, first signer of the Declaration of Independence||30||70,002||306 sq mi|
|Harrison County||061||Corydon||Dec 1, 1808||Clark and Knox County||William Henry Harrison, governor of Indiana Territory and U.S. President||31||39,364||485 sq mi|
|Hendricks County||063||Danville||Dec 20, 1824||Delaware and Wabash New Purchase||Governor of Indiana William Hendricks||32||145,488||407 sq mi|
|Henry County||065||New Castle||Dec 31, 1821||Delaware New Purchase||Patrick Henry, attorney, orator, and founding father||33||49,462||392 sq mi|
|Howard County||067||Kokomo||Jan 15, 1844||un-organized||Gen. Tilghman Howard, a U.S. Representative from Indiana||34||82,752||293 sq mi|
|Huntington County||069||Huntington||Feb 2, 1832||Adams New Purchase and un-organized||Samuel Huntington, signer the Declaration of Independence||35||37,124||383 sq mi|
|Jackson County||071||Brownstown||Jan 1, 1816||Clark, Jefferson and Washington||U.S. President Andrew Jackson||36||42,367||509 sq mi|
|Jasper County||073||Rensselaer||Feb 7, 1835||Wabash New Purchase||Sgt. William Jasper, hero of the American Revolutionary War||37||33,478||560 sq mi|
|Jay County||075||Portland||Feb 7, 1835||Adams New Purchase||John Jay, first Chief Justice of the United States Supreme Court||38||21,253||384 sq mi|
|Jefferson County||077||Madison||Nov 23, 1810||Clark, Dearborn and Knox County||U.S. President Thomas Jefferson||39||32,428||361 sq mi|
|Jennings County||079||Vernon||Dec 27, 1816||Jackson and Jefferson Counties||Jonathan Jennings, first Governor of Indiana||40||28,525||377 sq mi|
|Johnson County||081||Franklin||Dec 31, 1823||Delaware New Purchase||John Johnson, first Chief Justice of the Indiana Supreme Court||41||139,654||320 sq mi|
|Knox County||083||Vincennes||Jun 6, 1790||Original County||U.S. Secretary of War Henry Knox||42||38,440||516 sq mi|
|Kosciusko County||085||Warsaw||Feb 7, 1835||un-organized||Tadeusz Kościuszko, Polish-born hero of the American Revolutionary War||43||77,358||531 sq mi|
|LaGrange County||087||LaGrange||Feb 2, 1832||un-organized||The ancestral estate of the Marquis de la Fayette, the French-born hero of the American Revolutionary War||44||37,128||380 sq mi|
|Lake County||089||Crown Point||Jan 28, 1837||Newton and Porter Counties||Its location on Lake Michigan||45, 94, 96||496,005||499 sq mi|
|LaPorte County||091||LaPorte||Jan 29, 1832||St. Joseph and un-organized||Means the door in French, which refers to the city of LaPorte||46||111,467||598 sq mi|
|Lawrence County||093||Bedford||Jan 7, 1818||Orange||Capt. James Lawrence, hero of the War of 1812||47||46,134||449 sq mi|
|Madison County||095||Anderson||Jan 4, 1823||Delaware New Purchase||U.S. President James Madison||48||131,636||452 sq mi|
|Marion County||097||Indianapolis||Dec 31, 1821||Delaware New Purchase||Gen. Francis Marion, American Revolutionary War hero||49, 93-99||903,393||396 sq mi|
|Marshall County||099||Plymouth||Feb 7, 1835||St. Joseph County||U.S. Chief Justice John Marshall||50||47,051||444 sq mi|
|Martin County||101||Shoals||Jan 17, 1820||Daviess and Dubois Counties||Major John T. Martin, hero of the War of 1812||51||10,334||336 sq mi|
|Miami County||103||Peru||Jan 30, 1833||Cass County and un-organized||Miami Native American people||52||36,903||374 sq mi|
|Monroe County||105||Bloomington||Jan 14, 1818||Orange County||U.S. President James Monroe||53||137,974||395 sq mi|
|Montgomery County||107||Crawfordsville||Dec 21, 1822||Wabash New Purchase||Gen. Richard Montgomery, hero of the American Revolutionary War||54||38,124||505 sq mi|
|Morgan County||109||Martinsville||Dec 31, 1822||Delaware and Wabash New Purchase||Gen. Daniel Morgan, hero of the American Revolutionary War||55||68,894||404 sq mi|
|Newton County||111||Kentland||Dec 8, 1859||Jasper County||Sgt. John Newton, hero of the American Revolutionary War||56||14,244||402 sq mi|
|Noble County||113||Albion||Feb 7, 1835||un-organized||U.S. Senator James Noble or Governor of Indiana Noah Noble, brothers||57||47,536||411 sq mi|
|Ohio County||115||Rising Sun||Jan 4, 1844||Dearborn County||The Ohio River forms its east boundary||58||6,128||86 sq mi|
|Orange County||117||Paoli||Feb 1, 1816||Gibson, Knox and Washington||Orange County, North Carolina, in turn named for the Dutch Protestant House of Orange||59||19,840||398 sq mi|
|Owen County||119||Spencer||Dec 21, 1818||Daviess and Sullivan County||Abraham Owen, hero of the Battle of Tippecanoe||60||21,575||385 sq mi|
|Parke County||121||Rockville||Jan 9, 1821||Vigo County||Benjamin Parke, a delegate of Indiana Territory to the U.S. Congress||61||17,339||445 sq mi|
|Perry County||123||Tell City||Nov 1, 1814||Gibson and Warrick Counties||Commodore Oliver Hazard Perry, hero of the War of 1812||62||19,338||382 sq mi|
|Pike County||125||Petersburg||Dec 21, 1816||Gibson and Perry County||Zebulon M. Pike, explorer of the American West||63||12,845||334 sq mi|
|Porter County||127||Valparaiso||Feb 7, 1835||un-organized||Capt. David Porter, hero of the War of 1812||64||164,343||418 sq mi|
|Posey County||129||Mount Vernon||Nov 11, 1814||Gibson County Warrick County||Thomas Posey, governor of Indiana Territory||65||25,910||410 sq mi|
|Pulaski County||131||Winamac||Feb 7, 1835||un-organized||Kazimierz Pułaski, Polish-born noble who led the colonial cavalry in the American Revolutionary War||66||13,402||434 sq mi|
|Putnam County||133||Greencastle||Dec 31, 1822||Owen County and Wabash New Purchase||Gen. Israel Putnam, hero of the American Revolutionary War||67||36,019||481 sq mi|
|Randolph County||135||Winchester||Jan 10, 1818||Wayne County||Randolph County, North Carolina, which is named for first President of the Continental Congress Peyton Randolph||68||26,171||452 sq mi|
|Ripley County||137||Versailles||Dec 27, 1816||Dearborn and Jefferson County||Gen. Eleazer Wheelock Ripley, hero of the War of 1812||69||28,818||446 sq mi|
|Rush County||139||Rushville||Dec 31, 1821||Delaware New Purchase||Dr. Benjamin Rush, signer the Declaration of Independence||70||17,392||408 sq mi|
|St. Joseph County||141||South Bend||Jan 29, 1830||un-organized||St. Joseph River, which flows through it toward Lake Michigan||71||266,931||458 sq mi|
|Scott County||143||Scottsburg||Jan 12, 1820||Clark, Jefferson, Jennings and Washington Counties||Charles Scott, Governor of Kentucky||72||24,181||190 sq mi|
|Shelby County||145||Shelbyville||Dec 31, 1821||Delaware New Purchase||Gen. Isaac Shelby, Governor of Kentucky||73||44,436||411 sq mi|
|Spencer County||147||Rockport||Jan 10, 1818||Perry and Warrick Counties||Capt. Spier Spencer, hero of the Battle of Tippecanoe||74||20,952||397 sq mi|
|Starke County||149||Knox||Feb 7, 1835||St. Joseph County and un-organized||Gen. John Stark, hero of the American Revolutionary War||75||23,363||309 sq mi|
|Steuben County||151||Angola||Feb 7, 1837||un-organized||Baron Frederick von Steuben, Prussian-born noble who trained colonial soldiers during the American Revolutionary War||76||34,185||309 sq mi|
|Sullivan County||153||Sullivan||Dec 30, 1816||Knox||General Daniel Sullivan, American Revolutionary War hero||77||21,745||447 sq mi|
|Switzerland County||155||Vevay||Oct 1, 1814||Dearborn and Jefferson County||The home country of many of the early settlers, Switzerland||78||10,613||221 sq mi|
|Tippecanoe County||157||Lafayette||Jan 20, 1826||Wabash New Purchase and un-organized||The Tippecanoe River and the Battle of Tippecanoe||79||172,780||500 sq mi|
|Tipton County||159||Tipton||Jan 15, 1844||Adams New Purchase and un-organized||John Tipton, U.S. Senator||80||15,936||261 sq mi|
|Union County||161||Liberty||Jan 5, 1821||Parts of Fayette, Franklin and Wayne counties||Named because it united sections of three adjacent counties into one new entity||81||7,516||161 sq mi|
|Vanderburgh County||163||Evansville||Jan 7, 1818||Gibson, Posey, and Warrick Counties||Henry Vanderburgh, a judge for Indiana Territory||82||179,703||233 sq mi|
|Vermillion County||165||Newport||Jan 2, 1824||Parke County and Wasbash New Purchase||The Vermillion River||83||16,212||257 sq mi|
|Vigo County||167||Terre Haute||Jan 21, 1818||Sullivan County||Francis Vigo, Italian-born colonial spy during the American Revolutionary War||84||107,818||403 sq mi|
|Wabash County||169||Wabash||Jan 30, 1833||Adams New Purchase and un-organized||The Wabash River||85||32,888||412 sq mi|
|Warren County||171||Williamsport||Jan 19, 1827||Wabash New Purchase and un-organized||Dr. Joseph Warren, American Revolutionary War hero||86||8,508||365 sq mi|
|Warrick County||173||Boonville||Apr 30, 1813||Gibson and Knox Counties||Capt. Jacob Warrick, hero of the Battle of Tippecanoe||87||59,689||385 sq mi|
|Washington County||175||Salem||Dec 21, 1813||Clark, Harrison and Knox Counties||U.S. President George Washington||88||28,262||514 sq mi|
|Wayne County||177||Richmond||Nov 27, 1810||Clark, Dearborn and Knox||Gen. "Mad" Anthony Wayne, hero of the American Revolutionary War||89||68,917||402 sq mi|
|Wells County||179||Bluffton||Feb 7, 1837||Adams New Purchase||Capt. William A. Wells, Native American who became a hero in the War of 1812||90||27,636||368 sq mi|
|White County||181||Monticello||Feb 1, 1834||Wabash New Purchase and un-organized||Capt. Isaac White, hero of the Battle of Tippecanoe||91||24,643||505 sq mi|
|Whitley County||183||Columbia City||Feb 7, 1835||un-organized||Col. William Whitley, hero of the Battle of Tippecanoe||92||33,292||336 sq mi|
- though Newton County was first formed in 1835
- "Population Estimates for Indiana Counties, 2010-2017". StatsIndiana. Retrieved June 1, 2018.
- National Association of Counties. "NACo - Find a county". Retrieved June 1, 2014.
- "IN Const. art. XV, § 7 - Constitution of the State of Indiana, as amended". Indiana Legislature. 1851. Retrieved December 28, 2008.
- "FIPS Publication 6-4". National Institute of Standards and Technology. Retrieved April 11, 2007.
- "Indiana License Plates, 1969-Present". February 28, 2016.
- "EPA County FIPS Code Listing". EPA.gov. Retrieved February 23, 2008.
- "Origin of Indiana County Names". Indiana Historical Bureau. Retrieved January 4, 2009.
- "Origin of Indiana County Names". January 4, 2009.
- "Indiana BMV website". February 28, 2016.
- "Indiana -- County". U.S. Census Bureau. Retrieved January 4, 2009.
- Fought in the Battle of Tippecanoe
- Delaware County was originally formed on January 1, 1820, but for lack of population it was dissolved shortly thereafter. (Funk, p. 192)
- Originally named Richardville County for Chief Richardville, but renamed in 1872 (Funk, p. 193)
- Originally organized February 7, 1835 but merged with Jasper County in 1839 and recreated later. (Funk, p. 193)
- Originally formed January 20, 1820 but soon dissolved for lack of population. (Funk, p. 194)
- Funk, Arville (1983) . A Sketchbook of Indiana History. Rochester, Indiana: Christian Book Press. pp. 192–194.