1923 Ohio state highway renumbering
In 1923, Ohio renumbered almost all of its state highways in order to simplify the system.
| Old | New | Now | From | To |
| US 40 | Indiana | Pennsylvania | ||
| US 20 | Cleveland | Pennsylvania | ||
| US 6 | Cleveland | Sandusky | ||
| US 23 | Columbus | Waldo | ||
| SR 98 | Waldo | Bucyrus | ||
| SR 4 | Bucyrus | Sandusky | ||
| US 23 | Portsmouth | Columbus | ||
| SR 142, US 42 | West Jefferson | Sharonville | ||
| US 52, SR 7 | Cincinnati | Pomeroy | ||
| SR 124 | Hockingport | Little Hocking | ||
| SR 7 | Little Hocking | East Liverpool | ||
| SR 39 | East Liverpool | Pennsylvania | ||
| US 50, SR 28 | Cincinnati | Chillicothe | ||
| US 50 | Milford | Hillsboro | ||
| SR 3/US 22 | Cincinnati | Washington Court House | ||
| US 22 | Washington Court House | Zanesville | ||
| US 25 | Toledo | Michigan | ||
| SR 14 | Cleveland | Salem | ||
| SR 45 | Salem | Lisbon | ||
| US 30 | Lisbon | East Liverpool | ||
| SR 7 | Hubbard | Conneaut | ||
| SR 289 | Youngstown | Pennsylvania | ||
| US 322 | Cleveland | Pennsylvania | ||
| SR 8 | Akron | Cleveland | ||
| SR 21 | Cleveland | Massillon | ||
| SR 18 | Akron | Youngstown | ||
| US 42 | Cincinnati | Sharonville | ||
| US 25 | Sharonville | Franklin | ||
| US 25 | Franklin | Dayton | ||
| SR 2 | Toledo | Wauseon | ||
| US 20, SR 120 | Toledo | Indiana | ||
| US 25 | Lima | Findlay | ||
| SR 12, US 6 | Findlay | Sandusky | ||
| US 62 | Columbus | Millersburg | ||
| SR 3 | Columbus | Wooster | ||
| SR 3, US 42 | Cleveland | Wooster | ||
| US 22 | Steubenville | Cambridge | ||
| SR 201 | Dayton | Brandt | ||
| SR 235 | East of Brandt | Lakeview | ||
| US 35 | Dayton | Eaton | ||
| SR 122 | Eaton | Indiana | ||
| US 35 | Dayton | Chillicothe | ||
| SR 125 | Cincinnati | West Union | ||
| US 20 | Cleveland | Elyria | ||
| SR 94, SR 3 | Cleveland | Medina | ||
| US 422 | Cleveland | Chagrin Falls | ||
| SR 87 | Chagrin Falls | Burton | ||
| US 6 | Euclid | Chardon | ||
| US 422 | Chagrin Falls | Parkman | ||
| SR 88 | Parkman | Pennsylvania | ||
| SR 82 | Twinsburg | Elyria | ||
| SR 237, Eastland Road, Fowles Road | Rocky River | Berea | ||
| SR 264, US 50 | Cincinnati | Indiana | ||
| US 127 | Cincinnati | Hamilton | ||
| US 27, SR 126 | Cincinnati | Indiana | ||
| SR 32 | Cincinnati | Batavia | ||
| US 52 | Cincinnati | Indiana | ||
| SR 4 | Carthage | Hamilton | ||
| SR 128 | Hamilton | Cleves | ||
| SR 126 | Dunlap | Springdale | ||
| SR 126 | Glendale | Milford | ||
| SR 16 | Columbus | Newark | ||
| US 33 | Columbus | Marysville | ||
| US 33 | Columbus | Lancaster | ||
| SR 3/US 62 | Columbus | Washington Court House | ||
| US 24 | Toledo | Napoleon | ||
| SR 51 | Toledo | Southeast of Woodville | ||
| SR 65 | Toledo | Perrysburg | ||
| SR 65 | Perrysburg | Grand Rapids | ||
| SR 51 | Toledo | Michigan | ||
| SR 246, Secor Road | Toledo | Michigan | ||
| SR 2 | Toledo | Bono | ||
| US 20, Perrysburg Holland Road | Perrysburg | Holland | ||
| US 20, Holland Sylvania Road | Southeast of Holland | Sylvania | ||
| SR 64 | Waterville | Swanton | ||
| SR 4 | Dayton | Springfield | ||
| US 25 | Dayton | Troy | ||
| SR 49 | Dayton | Greenville | ||
| SR 48 | Dayton | Covington | ||
| SR 48 | Dayton | Lebanon | ||
| SR 4 | Dayton | Germantown | ||
| SR 8 | Akron | Canton | ||
| US 62 | Canton | Louisville | ||
| US 62, SR 193 | Louisville | Alliance | ||
| SR 172 | Canton | Massillon | ||
| US 30, SR 172 | Massillon | Wooster | ||
| SR 800 | Canton | New Philadelphia | ||
| SR 93, SR 236 | Akron | Massillon | ||
| SR 172 | Canton | Osnaburg | ||
| SR 172 | Osnaburg | New Franklin | ||
| SR 153 | Canton | Louisville | ||
| SR 44 | Ravenna | Louisville | ||
| SR 44 | Louisville | Louisville | ||
| SR 43 | Canton | Waynesburg | ||
| SR 171 | Waynesburg | Carrollton | ||
| SR 43 | Carrollton | Steubenville | ||
| SR 225 | Alliance | East of Atwater Center | ||
| SR 225 | East of Atwater Center | Yale | ||
| SR 21 | Massillon | Northwest of Strasburg | ||
| SR 183 | Alliance | Minerva | ||
| US 62 | Navarre | Berlin | ||
| US 422 | Youngstown | Girard | ||
| US 422 | Girard | Warren | ||
| US 62 | Youngstown | Salem | ||
| SR 164, SR 7 | Youngstown | Lisbon | ||
| SR 170, SR 617 | Pennsylvania | Youngstown | ||
| US 62, SR 173 | Alliance | Salem | ||
| US 422 | Youngstown | Pennsylvania | ||
| SR 14 | Salem | Unity | ||
| SR 14 | Unity | Pennsylvania | ||
| US 224 | Akron | Canfield | ||
| SR 169 | Girard | Warren | ||
| SR 165 | North Lima | Unity | ||
| SR 165 | Unity | East Palestine | ||
| SR 174 | Chagrin Falls | Willoughby | ||
| SR 91 | Cuyahoga Falls | Solon | ||
| SR 174 | Solon | Chagrin Falls | ||
| SR 59 | Akron | Cuyahoga Falls | ||
| SR 59 | Cuyahoga Falls | Kent | ||
| SR 261 | Akron | Kent | ||
| SR 18 | Akron | Medina | ||
| SR 585 | Akron | Wooster | ||
| US 224 | Barberton | Chicago Junction | ||
| SR 176 | Northwest of Akron | Ghent | ||
| SR 214 | St. Clairsville | Bellaire | ||
| US 250 | Bridgeport | Cadiz | ||
| SR 800 | Barnesville | Hendrysburg | ||
| SR 9 | Cadiz | St. Clairsville | ||
| SR 149 | New Athens | Morristown | ||
| SR 800 | Barnesville | Woodsfield | ||
| SR 148 | Barnesville | Powhatan Point | ||
| SR 9 | St. Clairsville | Armstrongs Mills | ||
| SR 265 | Cambridge | Barnesville | ||
| SR 145 | Malaga | Alledonia | ||
| SR 423 | Marion | Waldo | ||
| SR 4 | Marion | Bucyrus | ||
| SR 95 | Marion | Mount Gilead | ||
| SR 309 | Kenton | Marion | ||
| US 23, SR 199, SR 423 | Marion | Upper Sandusky | ||
| SR 309 | Marion | Galion | ||
| SR 4 | Marysville | Marion | ||
| SR 203 | Delaware | North of Prospect | ||
| SR 37 | South of Richwood | LaRue | ||
| SR 37 | LaRue | Marseilles | ||
| SR 125 | West Union | Portsmouth | ||
| SR 41, SR 136 | West Union | Manchester | ||
| SR 247 | West Union | Wrightsville | ||
| SR 247, SR 785 | West Union | Belfast | ||
| SR 73 | Hillsboro | Portsmouth | ||
| SR 41 | West Union | Bainbridge | ||
| SR 32 | Batavia | South of Seaman | ||
| US 25 | Lima | Wapakoneta | ||
| SR 309 | Lima | Delphos | ||
| SR 309 | Lima | Kenton | ||
| SR 65 | Lima | Ottawa | ||
| SR 117 | Lima | North of Huntsville | ||
| US 33 | North of Huntsville | Bellefontaine | ||
| SR 66 | Delphos | St. Marys | ||
| SR 117 | Lima | Conant | ||
| SR 117 | Conant | Spencerville | ||
| SR 12 | Findlay | Vaughnsville | ||
| SR 12 | Vaughnsville | Gomer | ||
| US 30 | Gomer | Delphos | ||
| SR 115 | Kieferville | Lima | ||
| SR 116, SR 117 | Van Wert | Spencerville | ||
| SR 198 | Delphos | Conant | ||
| SR 198 | Conant | Wapakoneta | ||
| SR 190 | Delphos | Fort Jennings | ||
| SR 190 | Fort Jennings | West of Kalida | ||
| SR 103 | Bluffton | Carey | ||
| US 42 | Ashland | Medina | ||
| US 42 | Mansfield | Ashland | ||
| US 250 | Ashland | Wooster | ||
| SR 60/US 250 | Ashland | Savannah | ||
| US 250 | Savannah | Fitchville | ||
| SR 13/US 250 | Fitchville | Norwalk | ||
| SR 60 | Ashland | Loudonville | ||
| SR 58 | Ashland | South of Sullivan | ||
| SR 58 | South of Sullivan | Oberlin | ||
| SR 39 | Mansfield | Millersburg | ||
| US 30, SR 430 | Mansfield | Wooster | ||
| SR 179 | Hayesville | Nashville | ||
| SR 96 | Ashland | Shelby | ||
| SR 60 | Savannah | Vermilion | ||
| SR 46 | Niles | Ashtabula | ||
| SR 307, Mells Road, Stanhope-Kelloggsville Road | Jefferson | West Andover | ||
| SR 85, US 6 | West Andover | Pennsylvania | ||
| SR 307 | Jefferson | Geneva | ||
| SR 86 | Painesville | Windsor | ||
| SR 45 | Windsor | Warren | ||
| SR 534 | Windsor | Geneva | ||
| US 33 | Logan | Athens | ||
| SR 144, US 50 | Athens | Hockingport | ||
| SR 550 | Athens | Marietta | ||
| SR 13 | New Lexington | Chauncey | ||
| US 33 | Athens | Pomeroy | ||
| US 50 | Athens | McArthur | ||
| SR 7 | Pomeroy | Little Hocking | ||
| SR 377 | McConnelsville | Sharpsburg | ||
| SR 143 | Pomeroy | West of Albany | ||
| US 25 | Sidney | Wapakoneta | ||
| US 33 | Wapakoneta | St. Marys | ||
| SR 67 | Wapakoneta | Kenton | ||
| SR 29, SR 703 | St. Marys | Celina | ||
| US 33, SR 366 | North of Huntsville | Wapakoneta | ||
| SR 29 | Sidney | St. Marys | ||
| SR 66 | Piqua | St. Marys | ||
| SR 119 | Indiana | Minster | ||
| SR 119 | Minster | Northwest of Sidney | ||
| US 33 | St. Marys | Indiana | ||
| SR 197 | Celina | Kossuth | ||
| US 68 | Georgetown | Wilmington | ||
| US 68 | Georgetown | Ripley | ||
| US 62 | Ripley | Hillsboro | ||
| SR 221 | Georgetown | Higginsport | ||
| SR 4, SR 73 | Hamilton | Franklin | ||
| US 127 | Hamilton | Eaton | ||
| SR 177 | Hamilton | Indiana | ||
| US 27 | Indiana | McGonigle | ||
| US 27 | McGonigle | Northeast of Ross | ||
| SR 130 | Hamilton | McGonigle | ||
| SR 122 | Eaton | Middletown | ||
| SR 63 | Hamilton | Lebanon | ||
| SR 4 | Middletown | Germantown | ||
| US 68 | Springfield | Urbana | ||
| SR 29 | Urbana | West Jefferson | ||
| US 68 | Urbana | Bellefontaine | ||
| US 36 | Piqua | Urbana | ||
| US 36 | Urbana | Marysville | ||
| SR 29 | Urbana | Sidney | ||
| Troy Urbana Road | Troy | Urbana | ||
| SR 56 | Urbana | London | ||
| US 68 | Springfield | Xenia | ||
| SR 41 | Springfield | Troy | ||
| SR 41 | Springfield | Washington Court House | ||
| SR 571 | West Milton | Donnelsville | ||
| SR 19 | Bucyrus | Broken Sword | ||
| SR 100 | Broken Sword | Tiffin | ||
| US 30 | Bucyrus | Upper Sandusky | ||
| SR 19 | Galion | Bucyrus | ||
| SR 309 | Mansfield | Galion | ||
| US 30 | Bucyrus | Crestline | ||
| SR 61 | Shelby | Galion | ||
| SR 98 | Plymouth | Bucyrus | ||
| SR 61 | Galion | Mount Gilead | ||
| SR 181 | Crestline | Ontario | ||
| US 36 | Greenville | Covington | ||
| SR 571 | Greenville | West Milton | ||
| US 127 | Eaton | Greenville | ||
| US 127 | Celina | Greenville | ||
| SR 571 | Greenville | Union City | ||
| SR 49 | Greenville | Fort Recovery | ||
| SR 121 | Greenville | Versailles | ||
| SR 121 | Greenville | Indiana | ||
| SR 185 | Piqua | Versailles | ||
| SR 47 | Sidney | Versailles | ||
| SR 185 | Versailles | Brock | ||
| US 224 | Findlay | Tiffin | ||
| SR 25 | Findlay | Bowling Green | ||
| US 68 | Findlay | Kenton | ||
| SR 199, SR 568 | Findlay | Upper Sandusky | ||
| SR 15 | Ottawa | Findlay | ||
| SR 18 | Hoytville | Fostoria | ||
| SR 18 | Deshler | Hoytville | ||
| SR 186, SR 235 | Hoytville | Findlay | ||
| US 68 | Bellefontaine | Kenton | ||
| SR 53 | Kenton | Forest | ||
| SR 31 | Marysville | Kenton | ||
| SR 67 | Kenton | Upper Sandusky | ||
| SR 235 | Roundhead | Ada | ||
| SR 81 | Ada | Forest | ||
| SR 235 | Roundhead | Lakeview | ||
| SR 53 | Forest | Upper Sandusky | ||
| SR 47 | Sidney | Bellefontaine | ||
| US 33 | Marysville | Bellefontaine | ||
| SR 47 | Bellefontaine | East of Richwood | ||
| US 25 | Piqua | Sidney | ||
| US 36 | Delaware | Marysville | ||
| SR 38 | Marysville | London | ||
| SR 37 | South of Richwood | Delaware | ||
| US 42 | Delaware | London | ||
| SR 161 | Plain City | Dublin | ||
| SR 56 | London | Circleville | ||
| SR 38 | Bloomingburg | Bloomingburg | ||
| SR 38 | Bloomingburg | London | ||
| US 25 | Piqua | Troy | ||
| US 36 | Piqua | Covington | ||
| SR 41 | Covington | Troy | ||
| US 68 | Wilmington | Xenia | ||
| US 35 | Eaton | Indiana | ||
| SR 123 | Franklin | Lebanon | ||
| SR 73 | Franklin | Wilmington | ||
| SR 123 | Lebanon | Morrow | ||
| SR 123 | Roachester | Blanchester | ||
| SR 73 | Wilmington | Hillsboro | ||
| SR 132 | Batavia | Owensville | ||
| SR 132 | Batavia | New Richmond | ||
| SR 133, SR 222 | Bethel | Chilo | ||
| US 50 | Hillsboro | Chillicothe | ||
| US 62 | Hillsboro | Washington Court House | ||
| SR 138 | Hillsboro | Greenfield | ||
| SR 124 | Hillsboro | Piketon | ||
| US 127 | Celina | Van Wert | ||
| SR 49 | Fort Recovery | Willshire | ||
| SR 29 | Celina | Indiana | ||
| SR 118 | Van Wert | Rockford | ||
| SR 53 | Upper Sandusky | Tiffin | ||
| SR 67, SR 18, SR 113 | Upper Sandusky | Northeast of Bellevue | ||
| US 23 | Fostoria | Carey | ||
| SR 53 | Fremont | Tiffin | ||
| SR 18 | Tiffin | Fostoria | ||
| SR 101 | Tiffin | South of Clyde | ||
| SR 113 | South of Clyde | Bellevue | ||
| US 224 | Tiffin | Chicago Junction | ||
| SR 199 | Perrysburg | Fostoria | ||
| US 20 | Fremont | Bellevue | ||
| US 20 | Fremont | Southeast of Woodville | ||
| US 20 | Southeast of Woodville | Perrysburg | ||
| SR 101 | Sandusky | Clyde | ||
| SR 53 | Fremont | Port Clinton | ||
| US 6 | Fremont | Bowling Green | ||
| SR 105 | Bowling Green | Oak Harbor | ||
| SR 163 | Oak Harbor | Port Clinton | ||
| SR 19 | Fremont | Oak Harbor | ||
| SR 412 | Fremont | Castalia | ||
| SR 25 | Bowling Green | Perrysburg | ||
| SR 64 | Bowling Green | Waterville | ||
| SR 110 | Grand Rapids | Bowling Green | ||
| SR 65 | Ottawa | McClure | ||
| SR 65 | McClure | North of McClure | ||
| SR 110 | North of McClure | Grand Rapids | ||
| SR 295 | Grand Rapids | Grand Rapids | ||
| US 6 | Bowling Green | Napoleon | ||
| SR 13 | Mansfield | Fitchville | ||
| SR 113 | Milan | Berlinville | ||
| SR 113 | Berlinville | Elyria | ||
| US 20 | Bellevue | Norwalk | ||
| US 20, SR 511 | Oberlin | Norwalk | ||
| SR 18 | Medina | Norwalk | ||
| SR 61 | Plymouth | Norwalk | ||
| SR 162 | New London | Fitchville | ||
| US 250 | Sandusky | Norwalk | ||
| SR 147 | Barnesville | Bellaire | ||
| SR 108 | Wauseon | Napoleon | ||
| SR 2 | Bryan | Wauseon | ||
| SR 108 | Wauseon | Michigan | ||
| SR 109 | McClure | Michigan | ||
| SR 64 | Swanton | Michigan | ||
| SR 66, US 127 | Archbold | Michigan | ||
| SR 66 | Archbold | Defiance | ||
| SR 107, US 20A | Burlington | Montpelier | ||
| SR 2 | Bryan | Hicksville | ||
| SR 2 | Hicksville | Indiana | ||
| SR 15 | Bryan | Ney | ||
| SR 15 | Ney | Defiance | ||
| SR 15 | Bryan | Michigan | ||
| US 127 | Bryan | Alvordton | ||
| SR 34 | Bryan | Indiana | ||
| US 6 | Bryan | Indiana | ||
| SR 34, US 6 | Bryan | Napoleon | ||
| SR 49 | Edon | Michigan | ||
| SR 191 | Stryker | Evansport | ||
| US 20, SR 511 | Oberlin | Elyria | ||
| SR 57 | Medina | Elyria | ||
| SR 57 | Elyria | Lorain | ||
| US 24 | Napoleon | Defiance | ||
| SR 109, SR 108, CR 10A | Ottawa | Napoleon | ||
| SR 18 | Defiance | East of Holgate | ||
| SR 18 | East of Holgate | Deshler | ||
| SR 115, SR 108 | North of Holgate | Kieferville | ||
| SR 57 | Medina | Wadsworth | ||
| SR 5 | Ravenna | Warren | ||
| SR 59 | Kent | Ravenna | ||
| SR 44 | Painesville | Ravenna | ||
| US 422 | Warren | Parkman | ||
| SR 168 | Parkman | Burton | ||
| SR 88 | Ravenna | Parkman | ||
| US 6 | Chardon | Hambden | ||
| SR 166, SR 528 | Hambden | Madison | ||
| SR 46 | Canfield | Niles | ||
| SR 82 | Warren | Sharon, PA | ||
| SR 5 | Warren | Pennsylvania | ||
| US 62 | Youngstown | Sharon, PA | ||
| US 42 | Delaware | Mount Gilead | ||
| SR 95, SR 13 | Mount Gilead | Mount Vernon | ||
| US 42 | Mount Gilead | Mansfield | ||
| SR 61 | Mount Gilead | Sunbury | ||
| SR 37 | Delaware | Newark | ||
| SR 13 | Newark | Mount Vernon | ||
| SR 13 | Mount Vernon | Mansfield | ||
| US 36, SR 715 | Mount Vernon | Coshocton | ||
| SR 205 | Danville | Jelloway | ||
| SR 39 | Millersburg | Canal Dover | ||
| SR 83 | Millersburg | Wooster | ||
| SR 60 | Coshocton | Killbuck | ||
| SR 60 | Zanesville | Trinway | ||
| SR 60, SR 376 | Zanesville | McConnelsville | ||
| SR 146 | Newark | Zanesville | ||
| SR 16 | Newark | Coshocton | ||
| SR 146, SR 215 | Zanesville | Caldwell | ||
| SR 209 | Cambridge | Bloomfield | ||
| SR 83 | Bloomfield | Coshocton | ||
| SR 93 | Zanesville | New Lexington | ||
| SR 93 | Zanesville | Otsego | ||
| US 21 | Cambridge | Newcomerstown | ||
| SR 821 | Cambridge | Caldwell | ||
| SR 37 | McConnelsville | New Lexington | ||
| SR 93 | Logan | New Lexington | ||
| SR 13 | Newark | New Lexington | ||
| SR 37 | Lancaster | New Lexington | ||
| SR 155 | Shawnee | Corning | ||
| SR 79, SR 37 | Lancaster | Newark | ||
| US 33 | Logan | Lancaster | ||
| SR 159 | Chillicothe | Lancaster | ||
| SR 56 | Circleville | Adelphi | ||
| SR 180 | Chillicothe | Logan | ||
| US 35 | Chillicothe | Jackson | ||
| US 50 | Chillicothe | McArthur | ||
| SR 124 | Jackson | Piketon | ||
| SR 220 | Waverly | Zahn's Corner | ||
| US 30 | Lisbon | Minerva | ||
| unbuilt | Minerva | Minerva | ||
| US 30 | Minerva | Minerva | ||
| SR 183 | Minerva | Sandyville | ||
| US 250 | Dennison | Cadiz | ||
| SR 9 | Cadiz | Carrollton | ||
| SR 151 | Dennison | Bowerston | ||
| SR 151 | Bowerston | Jewett | ||
| New Rumley Road | Jewett | Jewett | ||
| Old Jewett Road | Jewett | Jewett | ||
| SR 151 | Jewett | Hopedale | ||
| SR 212 | Dellroy | Bowerston | ||
| SR 9 | Carrollton | Kensington | ||
| SR 39 | Carrollton | Canal Dover | ||
| SR 39 | Carrollton | Salineville | ||
| SR 152 | Skelley | Empire | ||
| SR 151 | Mingo Junction | Hopedale | ||
| SR 150 | Mount Pleasant | Rayland | ||
| SR 39 | Salineville | Wellsville | ||
| SR 164 | Lisbon | Salineville | ||
| SR 517, SR 558 | Lisbon | East Palestine | ||
| SR 165 | East Palestine | Pennsylvania | ||
| SR 9 | Salem | Hanoverton | ||
| SR 78 | Woodsfield | Clarington | ||
| SR 78, SR 145, SR 724 | Caldwell | Woodsfield | ||
| SR 800 | Woodsfield | Fly | ||
| SR 145 | Lower Salem | Jerles | ||
| SR 26 | Woodsfield | Marietta | ||
| SR 78 | Caldwell | McConnelsville | ||
| SR 821 | Caldwell | Marietta | ||
| SR 147 | Caldwell | Barnesville | ||
| SR 60 | Marietta | McConnelsville | ||
| SR 124, US 33 | Pomeroy | West Virginia | ||
| SR 124 | Pomeroy | Jackson | ||
| SR 93 | McArthur | Jackson | ||
| SR 93 | McArthur | Logan | ||
| SR 160 | Gallipolis | McArthur | ||
| US 35 | Jackson | Gallipolis | ||
| SR 93 | Jackson | Ironton | ||
| SR 233 | Oak Hill | Cadmus | ||
| SR 140 | Oak Hill | Portsmouth | ||
| SR 139 | Jackson | Portsmouth | ||
| SR 141 | Ironton | Ironton | ||
| SR 217 | Ironton | Miller | ||
| SR 141 | Gallipolis | Ironton | ||
| SR 73 | Portsmouth | Portsmouth | ||
| SR 104 | Portsmouth | Lucasville | ||
| SR 348 | Lucasville | Lucasville | ||
| US 36 | Newcomerstown | Coshocton | ||
| SR 751 | West Lafayette | Stone Creek | ||
| US 21 | Stone Creek | New Philadelphia | ||
| SR 211 | Canal Dover | New Philadelphia | ||
| US 21 | New Philadelphia | New Philadelphia | ||
| SR 93, CR 106 | Marquand Mills | Newcomerstown | ||
| SR 79 | Walhonding | Fallsburg | ||
| SR 668 | Fallsburg | Newark | ||
| US 250 | New Philadelphia | Uhrichsville | ||
| US 36 | Newcomerstown | Uhrichsville | ||
| US 250 | Wooster | Strasburg | ||
| SR 21 | Strasburg | Canal Dover | ||
| US 21 | Newcomerstown | Stone Creek | ||
| McQuaid Road | Orrville | Wooster | ||
| SR 57 | Orrville | Easton | ||
| US 30 | Van Wert | Delphos | ||
| US 30 | Van Wert | Indiana | ||
| SR 18 | Hicksville | Defiance | ||
| SR 15 | Ottawa | Defiance | ||
| US 24 | Defiance | Indiana | ||
| SR 111 | Defiance | Paulding | ||
| US 127 | Paulding | Ney | ||
| SR 66 | Defiance | Delphos | ||
| SR 249 | Ney | Indiana | ||
| SR 49 | Convoy | Hicksville | ||
| SR 18 | Hicksville | Indiana | ||
| SR 500 | Paulding | Payne | ||
| US 127 | Van Wert | Paulding | ||
| SR 613 | Continental | Paulding | ||
| SR 613 | Payne | Indiana | ||
| SR 111 | Paulding | Payne | ||
| US 224 | Van Wert | Indiana | ||
| US 224 | Van Wert | Ottawa | ||
| SR 39 | Shelby | Mansfield | ||
| SR 61 | Shelby | Plymouth | ||
| SR 2 | Bono | Port Clinton | ||
| SR 163 | Oak Harbor | Genoa | ||
| SR 163 | Port Clinton | Marblehead | ||
| SR 136 | West Union | Hillsboro | ||
| SR 213 | Steubenville | Knoxville | ||
| SR 213 | Knoxville | Yellow Creek | ||
| SR 229 | Mount Vernon | Newcastle | ||
| SR 167 | Dorset | Pennsylvania | ||
| SR 235 | Dayton | East of Brandt | ||
| SR 175 | Bedford | Euclid | ||
| SR 87 | Burton | North Bloomfield | ||
| SR 195 | Roundhead | McGuffey | ||
| SR 18 | Tiffin | Republic | ||
| SR 16 | Roscoe | Coshocton | ||
| SR 134 | Wilmington | Sardinia | ||
| SR 222 | Nicholsville | Felicity | ||
| SR 104 | Columbus | Chillicothe | ||
| SR 89 | Mohicanville | South of Sullivan | ||
| SR 99 | Monroeville | Chicago Junction | ||
| SR 192 | Bryan | Evansport | ||
| SR 110 | Napoleon | North of McClure | ||
| SR 133 | Felicity | Utopia | ||
| SR 135 | Allensburg | Lynchburg | ||
| SR 43 | Cleveland | Aurora | ||
| SR 43 | Aurora | Suffield | ||
| SR 256 | Baltimore | Reynoldsburg | ||
| SR 158 | Lancaster | Kirkersville | ||
| SR 188 | Lancaster | Circleville | ||
| SR 242 | Beamsville | Versailles | ||
| SR 57 | Orrville | Dalton | ||
| SR 91 | Solon | Willoughby | ||
| SR 129 | Hamilton | Scipio | ||
| SR 47 | Versailles | Dawn | ||
| US 62 | Harrisburg | Beloit | ||
| SR 204 | Millersport | Mount Perry | ||
| SR 55 | Troy | Urbana | ||
| SR 72 | Springfield | Jamestown | ||
| SR 72 | Jamestown | Hillsboro | ||
| SR 82 | Aurora | Warren | ||
| US 6 | Hambden | Andover | ||
| SR 84 | Ashtabula | Pennsylvania | ||
| SR 541 | Coshocton | Kimbolton | ||
| SR 603, Ganges 5 Points Road | Ganges | Plymouth | ||
| SR 79 | Newark | Fallsburg | ||
| SR 276 | Williamsburg | Owensville | ||
| SR 38 | Washington Court House | Bloomingburg | ||
| SR 116 | St. Marys | Monticello | ||
| SR 97 | Bellville | Lexington | ||
| SR 83, SR 146 | McConnelsville | Cambridge | ||
| SR 19 | Broken Sword | North of Republic | ||
| SR 228 | North of Republic | Southwest of Clyde | ||
| US 224 | Canfield | Pennsylvania | ||
| SR 202 | Dayton | Troy | ||
| SR 45 | Lisbon | Wellsville | ||
| SR 43 | Carrollton | Malvern | ||
| SR 182 | Bucyrus | Upper Sandusky | ||
| SR 108 | Holgate | Miller City | ||
| Bradbury Road | Middleport | East of Rutland | ||
| US 30 | Osnaburg | Minerva | ||
| SR 131 | Milford | Vera Cruz | ||
| SR 230 | Fremont | Fremont | ||
| SR 196 | New Hampshire | Westminster | ||
| SR 54 | South Charleston | Urbana | ||
| US 36 | Greenville | Indiana | ||
| SR 176 | Richfield | Cleveland | ||
| SR 170 | Unity | Petersburg | ||
| US 30 | Mansfield | Crestline | ||
| SR 7, SR 164 | East Liverpool | Youngstown | ||
| SR 613 | Leipsic | McComb | ||
| SR 104 | Lucasville | Waverly | ||
| SR 78 | Glouster | McConnelsville | ||
| SR 800 | West of Hendrysburg | Dennison | ||
| SR 79 | Lakeside | Hebron | ||
| SR 218, SR 553 | Crown City | Gallipolis | ||
| SR 243 | Proctorville | Athalia | ||
| SR 189 | Fort Jennings | Vaughnsville | ||
| US 62 | Canton | Navarre | ||
| US 30 | Gomer | Upper Sandusky | ||
| SR 83 | New Concord | Bloomfield | ||
| SR 183, SR 700, Rock Spring Road | Atwater Center | Welshfield | ||
| SR 19 | North of Republic | Fremont | ||
| SR 45 | Salem | Warren | ||
| SR 114 | Indiana | Mandale | ||
| SR 216, SR 78 | Nelsonville | New Straitsville | ||
| SR 208 | Dresden | Adamsville | ||
| SR 61 | Norwalk | Berlinville | ||
| SR 61 | Berlinville | Ceylon | ||
| SR 307 | Madison | Geneva | ||
| SR 43 | Suffield | Canton | ||
| SR 528 | Madison | North Madison | ||
| SR 283 | Euclid | Painesville | ||
| SR 231 | Nevada | Nevada |