County Lists with Maps
| County | County Seat | Established | County Origins | Named For | Host | Location of County on Map |
|---|---|---|---|---|---|---|
| Adams | Decatur | February 7, 1836 | Adams New Purchase | U.S. President John Quincy Adams | ADOPTABLE |  |
| Allen | Fort Wayne | December 12, 1823 | Delaware New Purchase | Col. John Allen, Kentucky state senator | ADOPTABLE |  |
| Bartholomew | Columbus | January 8, 1821 | Jackson County and Delaware New Purchases | Lt. Col. Joseph Bartholomew | ADOPTABLE |  |
| Benton | Fowler | February 18, 1840 | Jasper County | Thomas H. Benton, U.S. Senator from Missouri | ADOPTABLE |  |
| Blackford | Hartford City | February 15, 1838 | Jay County | Judge Isaac Blackford, Speaker of the Indiana House of Representatives and Chief Justice of the Indiana Supreme Court | Katy Hestand |  |
| Boone | Lebanon | January 29, 1830 | Adams and Wabash New Purchases | Frontiersman Daniel Boone | Katy Hestand |  |
| Brown | Nashville | February 3, 1836 | Bartholomew County, Jackson County & Monroe County | General Jacob Brown. | ADOPTABLE |  |
| Carroll | Delphi | January 17, 1828 | Adams and Wabash New Purchases | Charles Carroll, signer of the Declaration of Independence | Judi Burns |  |
| Cass | Logansport | December 18, 1828 | Non-county Area | Gen. Lewis Cass, Governor of Michigan Territory and U.S. Secretary of State | Judii Burns |  |
| Clark | Jeffersonville | February 3, 1801 | Knox County | General George Rogers Clark | ADOPTABLE |  |
| Clay | Brazil | February 12, 1825 | Owen County, Putnam County, Sullivan County & Vigo County | U.S. Speaker of the House Henry Clay | ADOPTABLE |  |
| Clinton | Frankfort | January 29, 1830 | Adams and Wabash New Purchases | DeWitt Clinton, Governor of New York | ADOPTABLE |  |
| Crawford | English | January 29, 1818 | Orange County, Harrison County, & Perry County | Col. William Crawford | ADOPTABLE |  |
| Daviess | Washington | February 2, 1818 | Knox County | Col. Joseph H. Daviess | ADOPTABLE |  |
| Dearborn | Lawrenceburg | March 7, 1803 | Clark County, IN; Hamilton County, OH | U.S. Secretary of War Henry Dearborn | ADOPTABLE |  |
| Decatur | Greensburg | December 12, 1821 | Delaware New Purchase | Commodore Stephen Decatur | ADOPTABLE |  |
| DeKalb | Auburn | February 7, 1835 | Non-county Area | Johann de Kalb | ADOPTABLE |  |
| Delaware | Muncie | January 26, 1827 | Delaware New Purchase | Delaware Native American people | ADOPTABLE |  |
| Dubois | Jasper | December 20, 1817 | Perry &; Pike Counties | Toussaint Dubois | ADOPTABLE |  |
| Elkhart | Goshen | January 29, 1830 | Non-county Area | Elkhart Native American people | ADOPTABLE |  |
| Fayette | Connersville | January 29, 1818 | Franklin Wayne County and Non-county Area | Marquis de la Fayette | ADOPTABLE |  |
| Floyd | New Albany | January 2, 1819 | Clark and Harrison Counties | Col. John Floyd, early settler Davis Floyd or early settler John Floyd | ADOPTABLE |  |
| Fountain | Covington | December 20, 1825 | Montgomery County and Wabash New Purchase | Maj. James Fontaine | ADOPTABLE |  |
| Franklin | Brookville | February 1, 1811 | Clark County, Dearborn County & Knox County | Founding father Benjamin Franklin | ADOPTABLE |  |
| Fulton | Rochester | February 7, 1836 | Non-county Area | Robert Fulton, inventor of the steamboat | ADOPTABLE |  |
| Gibson | Princeton | April 1, 1813 | Knox County | John Gibson, secretary of the Indiana Territory | ADOPTABLE |  |
| Grant | Marion | February 10, 1831 | Formed from Madison County, Adams New Purchase and un-organized | Captains Samuel and Moses Grant | ADOPTABLE |  |
| Greene | Bloomfield | January 5, 1821 | Sullivan County & Non-county Area | Gen. Nathanael Greene | Judi Burns |  |
| Hamilton | Noblesville | January 8, 1823 | Formed from Delaware New Purchase | Alexander Hamilton | ADOPTABLE |  |
| Hancock | Greenfield | January 26, 1828 | Formed from Madison County | John Hancock | ADOPTABLE |  |
| Harrison | Corydon | December 1, 1808 | Formed from Clark and Knox County | William Henry Harrison, governor of Indiana Territory and U.S. President | ADOPTABLE |  |
| Hendricks | Danville | December 20, 1824 | Formed from Delaware and Wabash New Purchase | Governor of Indiana William Hendricks | ADOPTABLE |  |
| Henry | New Castle | December 31, 1821 | Formed from Delaware New Purchase | Patrick Henry | ADOPTABLE |  |
| Howard | Kokomo | January 15, 1844 | Formed from un-organized | Gen. Tilghman Howard, a U.S. Representative from Indiana | ADOPTABLE |  |
| Huntington | Huntington | February 2, 1832 | Formed from Adams New Purchase and un-organized | Samuel Huntington, signer the Declaration of Independence. | ADOPTABLE |  |
| Jackson | Brownstown | January 1, 1816 | Formed from Clark, Jefferson and Washington | U.S. President Andrew Jackson | Sheri Bush |  |
| Jasper | Rensselaer | February 7, 1835 | Formed from Wabash New Purchase | Sgt. William Jasper | ADOPTABLE |  |
| Jay | Portland | February 7, 1835 | Formed from Adams New Purchase | John Jay, first Chief Justice of the United States Supreme Court | Katy Hestand |  |
| Jefferson | Madison | November 23, 1810 | Formed from Clark, Dearborn and Knox County | U.S. President Thomas Jefferson | ADOPTABLE |  |
| Jennings | Vernon | December 27, 1816 | Formed from Jackson and Jefferson Counties | Jonathan Jennings, the first Governor of Indiana | ADOPTABLE |  |
| Johnson | Franklin | December 31, 1823 | Formed from Delaware New Purchase | John Johnson, first Chief Justice of the Indiana Supreme Court | ADOPTABLE |  |
| Knox | Vincennes | June 6, 1790 | Original County | U.S. Secretary of War Henry Knox | Katy Hestand |  |
| Kosciusko | Warsaw | February 7, 1835 | Formed from un-organized | Tadeusz Kosciuszko | ADOPTABLE |  |
| LaGrange | LaGrange | February 2, 1832 | Formed from un-organized | The Marquis de la Fayette's home outside of Paris, France | ADOPTABLE |  |
| Lake | Crown Point | January 28, 1837 | Formed from Newton and Porter Counties | Its location on Lake Michigan | ADOPTABLE |  |
| LaPorte | LaPorte | January 29, 1832 | Formed from St. Joseph and un-organized | LaPorte means the door or the port in French | ADOPTABLE |  |
| Lawrence | Bedford | January 7, 1818 | Formed from Orange County | Capt. James Lawrence | ADOPTABLE |  |
| Madison | Anderson | January 4, 1823 | Formed from Delaware New Purchase | U.S. President James Madison | ADOPTABLE |  |
| Marion | Indianapolis | December 31, 1821 | Formed from Delaware New Purchase | Gen. Francis Marion | ADOPTABLE |  |
| Marshall | Plymouth | February 7, 1835 | Formed from St. Joseph County | U.S. Chief Justice John Marshall | ADOPTABLE |  |
| Martin | Shoals | January 17, 1820 | Formed from Daviess and Dubois Counties | Maj. John T. Martin | ADOPTABLE |  |
| Miami | Peru | January 30, 1833 | Formed from Cass County and un-organized | Miami Native American people | ADOPTABLE |  |
| Monroe | Bloomington | January 14, 181 | Formed from Orange County | U.S. President James Monroe | ADOPTABLE |  |
| Montgomery | Crawfordsville | December 21, 1822 | Formed from Wabash New Purchase | Gen. Richard Montgomery | ADOPTABLE |  |
| Morgan | Martinsville | December 31, 1859 | Delaware and Wabash New Purchase | Gen. Daniel Morgan | ADOPTABLE |  |
| Newton | Kentland | December 8, 1859 | Formed from Jasper County | Sgt. John Newton | ADOPTABLE |  |
| Noble | Albion | February 7, 1835 | Formed from un-organized | U.S. Senator James Noble or Governor of Indiana Noah Noble, brothers | ADOPTABLE |  |
| Ohio | Rising Sun | January 4, 1844 | Formed from Dearborn County | The Ohio River | ADOPTABLE |  |
| Orange | Paoli | February 1, 1816 | Formed from Gibson, Knox and Washington | Orange County, North Carolina, in turn named for the Dutch Protestant House of Orange | ADOPTABLE |  |
| Owen | Spencer | December 21, 1818 | Formed from Daviess and Sullivan County | Abraham Owen | ADOPTABLE |  |
| Parke | Rockville | January 9, 1821 | Formed from Vigo County | Benjamin Parke, a delegate of Indiana Territory to the U.S. Congress | ADOPTABLE |  |
| Perry | Tell City | November 7, 1803 | Formed from Gibson and Warrick Counties | Commodore Oliver Hazard Perry | ADOPTABLE |  |
| Pike | Petersburg | December 21, 1816 | Formed from Gibson and Perry County | Zebulon M. Pike | ADOPTABLE |  |
| Porter | Valparaiso | February 7, 1835 | Formed from un-organized | Capt. David Porter | ADOPTABLE |  |
| Posey | Mount Vernon | November 11, 1814 | Formed from Warrick County | Thomas Posey, governor of Indiana Territory | ADOPTABLE |  |
| Pulaski | Winamac | February 7, 1835 | Formed from un-organized | Kazimierz Pulaski | ADOPTABLE |  |
| Putnam | Greencastle | December 31, 1822 | Formed from Owen County and Wabash New Purchase | Gen. Israel Putnam | Katy Hestand |  |
| Randolph | Winchester | January 10, 1818 | Formed from Wayne County | Either Thomas Randolph | ADOPTABLE |  |
| Ripley | Versailles | December 27, 1816 | Formed from Dearborn and Jefferson County | Gen. Eleazer Wheelock Ripley | ADOPTABLE |  |
| Rush | Rushville | December 31, 1821 | Formed from Delaware New Purchase | Dr. Benjamin Rush, signer the Declaration of Independence | ADOPTABLE |  |
| St. Joseph | South Bend | January 29, 1830 | Formed from un-organized | St. Joseph River, which flows through it toward Lake Michigan | ADOPTABLE |  |
| Scott | Scottsburg | January 12, 1820 | Clark, Jefferson, Jennings and Washington Counties | Charles Scott, Governor of Kentucky | ADOPTABLE |  |
| Shelby | Shelbyville | December 31, 1821 | Formed from Delaware New Purchase | Gen. Isaac Shelby, Governor of Kentucky | ADOPTABLE |  |
| Spencer | Rockport | January 10, 1818 | Formed from Perry and Warrick Counties | Capt. Spier Spencer | ADOPTABLE |  |
| Starke | Knox | February 7, 1835 | Formed from St. Joseph County and un-organized | Gen. John Stark | ADOPTABLE |  |
| Steuben | Angola | February 7, 1837 | Formed from un-organized | Baron Frederick von Steuben | ADOPTABLE |  |
| Sullivan | Sullivan | December 30, 1816 | Formed from Knox | Daniel Sullivan, soldier | Judi Burns |  |
| Switzerland | Vevay | October 1, 1814 | Formed from Dearborn and Jefferson County | The home country of many of the early settlers, Switzerland | Katy Hestand |  |
| Tippecanoe | Lafayette | January 20, 1826 | Formed from Wabash New Purchase and un-organized | The Tippecanoe River and the Battle of Tippecanoe | ADOPTABLE |  |
| Tipton | Tipton | January 15, 1844 | Formed from Adams New Purchase and un-organized | John Tipton | ADOPTABLE |  |
| Union | Liberty | January 5, 1821 | Parts of Fayette, Franklin and Wayne counties | Union of parts of other counties | ADOPTABLE |  |
| Vanderburgh | Evansville | January 7, 1818 | Gibson County, Posey County & Warrick County | Henry Vanderburgh, a judge for Indiana Territory | ADOPTABLE |  |
| Vermillion | Newport | January 2, 1824 | Formed from Parke County and Wasbash New Purchase | The Vermillion River | ADOPTABLE |  |
| Vigo | Terre Haute | January 21, 1818 | Formed from Sullivan County | Francis Vigo | ADOPTABLE |  |
| Wabash | Wabash | January 30, 1833 | Formed from Adams New Purchase and un-organized | The Wabash River | ADOPTABLE |  |
| Warren | Williamsport | January 19, 1827 | Wabash New Purchase and un-organized | Dr. Joseph Warren | ADOPTABLE |  |
| Warrick | Boonville | April 30, 1813 | Knox County | Capt. Jacob Warrick | ADOPTABLE |  |
| Washington | Salem | December 21, 1813 | Clark, Harrison and Knox Counties | U.S. President George Washington | Shani Bush |  |
| Wayne | Richmond | November 27, 1810 | Formed from Clark, Dearborn and Knox | Gen. "Mad" Anthony Wayne | Katy Hestand |  |
| Wells | Bluffton | February 7, 1837 | Formed from Adams New Purchase | Capt. William A. Wells | Katy Hestand |  |
| White | Monticello | February 1, 1834 | Formed from Wabash New Purchase and un-organized | Capt. Isaac White | ADOPTABLE |  |
| Whitley | Columbia City | February 7, 1835 | Formed from un-organized | Col. William Whitley | ADOPTABLE |  |
© 2010 Daryl Lytton & Trails to the Past
The information on this site may be used for use in personal family records, with source citation. The pages
in entirety may not be duplicated for publication in any fashion without the permission of the owner. Commercial use of any material
on this site is not permitted.
Please respect the wishes of those who have contributed their time and efforts to make this free site possible.