| ID | Historical Marker | County |
|---|
| 01.1977.1 | The Wayne Trace | Adams |
| 02.1948.1 | Site of Fort Miamis | Allen |
| 02.1963.1 | Camp Allen 1861-64 | Allen |
| 02.1966.1 | Site of Hardin's Defeat | Allen |
| 02.2000.1 | Fort Miamis | Allen |
| 03.1963.1 | PVT. Mitchell | Bartholomew |
| 03.1992.1 | Private Barton W. Mitchell | Bartholomew |
| 03.2007.2 | Atterbury Army Air Field | Bartholomew |
| 06.1962.1 | Patrick H. Sullivan 1794-1879 | Boone |
| 09.1947.1 | Battle of Olde Towne | Cass |
| 10.1962.1 | Civil War Hospital 1864-66 | Clark |
| 10.1963.1 | General Jefferson C. Davis 1828-1879 | Clark |
| 10.1998.1 | Fern Grove and Rose Island Resorts | Clark |
| 10.2017.1 | WWII Army Ammunition Plant | Clark |
| 13.1992.3 | Hines' Raid | Crawford |
| 14.1993.1 | Burial Site of Captain Eli McCarty | Daviess |
| 14.1999.1 | Fort Flora | Daviess |
| 16.1980.1 | Decatur County Court House | Decatur |
| 16.2001.1 | Civil War General John T. Wilder | Decatur |
| 20.1998.2 | Ambrose G. Bierce | Elkhart |
| 22.1966.1 | Site of Camp Whitcomb | Floyd |
| 24.2006.1 | Brigadier General CSA Francis Asbury Shoup | Franklin |
| 26.2015.1 | Black Civil War Substitutes | Gibson |
| 26.2022.1 | Aaron Richard Fisher, 1895-1985 | Gibson |
| 27.1947.1 | Battle of Mississinewa | Grant |
| 27.2011.1 | Marion Branch, NHDVS | Grant |
| 31.1961.1 | Battle of Corydon July 9, 1863 | Harrison |
| 31.1963.1 | Site of the Battle of Corydon July 9, 1863 | Harrison |
| 31.1963.2 | Morgan's Raid July 8-13, 1863 | Harrison |
| 31.1966.2 | Walter Q. Gresham | Harrison |
| 31.1966.4 | Cedar Hill Cemetery | Harrison |
| 35.2018.1 | Dr. Otto U. King | Huntington |
| 35.2021.1 | Elizebeth Smith Friedman, 1892-1980 | Huntington |
| 36.1951.1 | Fort Vallonia | Jackson |
| 36.1997.1 | Freeman Field | Jackson |
| 36.1997.2 | Freeman Field | Jackson |
| 36.2022.1 | Freeman Field Mutiny | Jackson |
| 37.1964.1 | General Robert H. Milroy 1816-1890 | Jasper |
| 39.1963.1 | Morgan's Raid July 8-13, 1863 | Jefferson |
| 39.1963.2 | James F.D. Lanier 1800-1881 | Jefferson |
| 39.1999.1 | Alois O. Bachman | Jefferson |
| 39.2004.1 | Michael C. Garber | Jefferson |
| 39.2018.1 | Samuel Woodfill | Jefferson |
| 40.1963.1 | Morgan's Raid, July 8-13, 1863 | Jennings |
| 40.1997.1 | Morgan's Raid | Jennings |
| K.Y.1963 | Battle of Perryville | Kentucky |
| 42.1966.2 | Fort Knox, First Site | Knox |
| 42.2011.1 | Tecumseh and Harrison | Knox |
| 46.1962.1 | Civil War Camps | LaPorte |
| 46.1996.1 | Camp Anderson | LaPorte |
| 49.1958.1 | Joseph Warren | Marion |
| 49.1960.1 | Anthony Wayne 1745-1796 | Marion |
| 49.1961.2 | Lincoln to the Citizens of Indiana | Marion |
| 49.1962.1 | Camp Morton 1861-65 | Marion |
| 49.1963.1 | Brig. General Benjamin Harrison 1833-1901 | Marion |
| 49.1964.1 | Civil War Arsenal 1861-1864 | Marion |
| 49.1976.1 | Former U.S. Arsenal | Marion |
| 49.1996.1 | Fort Benjamin Harrison | Marion |
| 49.2004.5 | 28th Regiment USCT | Marion |
| 49.2009.2 | Bethel African Methodist Episcopal Church | Marion |
| 49.2018.2 | WWI Aviation Repair Depot | Marion |
| 49.2019.3 | Lt. Col. Joseph H. Ward, M.D., 1872-1952 | Marion |
| 49.2020.1 | The American Legion | Marion |
| 50.1949.1 | Trail of Death | Marshall |
| 50.2011.1 | Benack's Village* | Marshall |
| 54.1963.1 | Major General Lew Wallace 1827-1905 | Montgomery |
| 57.1963.1 | Camp Mitchell | Noble |
| 58.1961.1 | Lochry's Defeat | Ohio |
| 60.1966.1 | Camp Hughes | Owen |
| 61.1966.2 | Armiesburg | Parke |
| 62.1963.1 | Hines Raid 1862 | Perry |
| 62.1965.1 | Civil War Memorial Grave 1865 | Perry |
| 64.1995.1 | Iron Brigade | Porter |
| 65.1966.2 | Alvin P. Hovey 1821-1891 | Posey |
| 69.1963.1 | Morgan's Raid July 8-13, 1863 | Ripley |
| 71.1963.1 | Camp Rose | St. Joseph |
| 71.1965.1 | Sisters of the Holy Cross Civil War Nurses 1861-1865 | St. Joseph |
| 71.1997.1 | Normain Heights Subdivision | St. Joseph |
| 72.1963.1 | Morgan's Raid July 8-13, 1863 | Scott |
| 72.1963.2 | Morgan's Raid | Scott |
| 72.2001.2 | John Kimberlin Farm | Scott |
| 72.2002.7 | Morgan's Raid, July 1863 | Scott |
| 72.2004.1 | Pigeon Roost | Scott |
| 77.1985.1 | Westernmost Naval Battle of the Revolution | Sullivan |
| 77.1989.4 | Fairbanks' Massacre | Sullivan |
| 77.1992.1 | A Civil War Murder | Sullivan |
| 78.1966.1 | Birthplace John Shaw Billings, M.D. April 12, 1838 - March 11, 1913 | Switzerland |
| 79.1947.1 | Tippecanoe Battleground | Tippecanoe |
| 79.1963.2 | Major General Joseph J. Reynolds 1822-1899 | Tippecanoe |
| 79.1973.1 | The Wabash River | Tippecanoe |
| 79.1995.1 | Cairo Skywatch Tower | Tippecanoe |
| 79.1998.2 | Fort Ouiatenon | Tippecanoe |
| 81.1963.1 | Maj. Gen. Ambrose E. Burnside 1824-1881 | Union |
| 82.1995.1 | P-47 Thunderbolt Factory | Vanderburgh |
| 82.2023.1 | P-47 Thunderbolt Factory | Vanderburgh |
| 83.1960.1 | Harrison's Crossing November 3, 1811 | Vermillion |
| 83.2018.1 | Henry Dana Washburn, 1832-1871 | Vermillion |
| 84.1947.1 | Terre Haute [Site of Old Fort Harrison] | Vigo |
| 84.1962.1 | Camp Vigo 1861-62 | Vigo |
| 84.1982.1 | [Charles Gene Abrell] | Vigo |
| 85.1962.1 | Camp Wabash 1862-65 | Wabash |
| 88.1963.1 | Morgan's Raid July 8-13, 1863 | Washington |
| 88.2005.1 | Skirmish Near Pekin | Washington |
| 89.1962.1 | Oliver P. Morton Home | Wayne |
| 89.1963.1 | Iron Brigade Commander | Wayne |
| 89.1963.2 | Camp Wayne | Wayne |
| 89.1978.1 | East Germantown Civil War Band | Wayne |
| 92.1959.1 | Wm. Wells 1770-1812 | Whitley |
| 92.1966.2 | Site of Little Turtle's Miami Village | Whitley |
| 92.2001.1 | Eel River Battlefield War of 1812 | Whitley |
