| 2026-07-27 | Only state with a nonrectangular flag |
| 2026-07-14 | State along a river of the same name |
| 2026-06-08 | Home of Columbus |
| 2026-05-26 | Home of Xenia, the U.S.'s largest city whose name starts with "X" |
| 2026-04-01 | Birthplace of seven U.S. presidents |
| 2025-12-29 | River past Cincinnati |
| 2025-11-08 | Red state? |
| 2025-03-24 | Buckeye's home |
| 2025-03-12 | Birthplace of Halle Berry and Simone Biles |
| 2025-01-18 | Largest tributary of the Mississippi |
| 2024-12-01 | Home of Oberlin College |
| 2024-11-22 | Home to Cuyahoga Valley National Park |
| 2024-09-18 | Home of the Pro Football Hall of Fame |
| 2024-09-15 | Home to Cedar Point |
| 2024-09-12 | River through Louisville |
| 2024-08-25 | State with a five-sided flag |
| 2024-07-04 | Geographical locale whose name resembles a tractor when written in upper- and lowercase |
| 2024-03-26 | Dayton's state |
| 2024-02-16 | Where Life Savers and pop-top cans were both invented |
| 2023-12-20 | Reds state |
| 2023-11-19 | Home to Dublin and Toledo |
| 2023-09-02 | Reds state |
| 2023-05-28 | Home to the Cedar Point amusement park, a mecca for roller-coaster enthusiasts |
| 2023-05-18 | See 20-Across |
| 2023-04-21 | Cuyahoga Valley National Park setting |
| 2023-02-28 | Toledo's home |
| 2023-01-11 | Home of Denison University |
| 2022-12-20 | Where Lake Erie reaches its southernmost point |
| 2022-10-26 | River past Cincinnati |
| 2022-09-11 | Home of Kenyon College |
| 2022-07-11 | Cincinnati's river |
| 2022-05-24 | Home of Miami University |
| 2022-03-14 | Youngstown's home |
| 2022-02-16 | Lima's home |
| 2021-12-03 | Answer to the old riddle "What's round on the ends and high in the middle?" |
| 2021-12-01 | Birthplace of seven U.S. presidents |
| 2021-08-19 | Where I-70 meets I-71 |
| 2021-07-16 | River past Louisville |
| 2021-07-12 | Home of Cincinnati |
| 2021-07-09 | Home of the Polka Hall of Fame and Pro Football Hall of Fame |
| 2021-06-15 | Reds state? |
| 2021-06-10 | River that starts in Pittsburgh |
| 2021-04-16 | Birthplace of 35-Across |
| 2020-11-11 | Home to the Cedar Point amusement park |
| 2020-05-18 | State that's said to be "high in the middle" |
| 2020-03-28 | Lima locale |
| 2020-02-08 | North/South divide, with "the" |
| 2020-01-29 | Home of the first man to walk on the moon, the first American to orbit Earth and the first American woman to walk in space |
| 2019-09-24 | See 12-Across |
| 2019-09-15 | Pro Football Hall of Fame locale |
| 2019-08-27 | Home to Xenia and Zanesville, the most populous U.S. cities starting with "X" and "Z" |
| 2019-08-17 | University in Athens |
| 2019-06-04 | Neighbor of Pennsylvania |
| 2019-04-01 | Columbus's home |
| 2019-03-11 | Separator of Indiana and Pennsylvania |
| 2019-01-22 | State said to be "high in the middle" |
| 2019-01-02 | River originating in Pittsburgh |
| 2018-11-26 | Columbus's home |
| 2018-09-16 | River that formed an extension of the Mason-Dixon line |
| 2018-09-12 | Interstates 70 and 71 cross in its capital |
| 2018-08-13 | Toledo's home |
| 2018-06-15 | Where I-70 meets I-75 |
| 2017-03-16 | Home to Bowling Green |
| 2017-01-23 | Akron's home |
| 2016-12-06 | Home of Wright State University |
| 2016-10-11 | Lima's home |
| 2016-08-13 | River into which the Big Sandy and the Little Sandy flow |
| 2016-07-03 | Only state with a nonrectangular flag |
| 2016-06-22 | Neil Young song about Kent State |
| 2016-06-20 | Cleveland's state |
| 2016-06-06 | John Kasich's state |
| 2016-03-10 | Answer to the old riddle "What's round on the ends and high in the middle?" |
| 2016-02-29 | Its postal abbreviation is also an exclamation |
| 2015-12-24 | Home of the first full-time automobile service station |
| 2015-07-12 | College sports' ___ Valley Conference |
| 2015-04-27 | Cincinnati's home |
| 2015-04-26 | Mississippi River's largest tributary |
| 2015-04-06 | Closely watched state on election night |
| 2015-03-14 | Home for the College of Wooster |
| 2014-10-30 | Lima's place |
| 2014-10-27 | River that starts at Pittsburgh |
| 2014-05-08 | Its first capital was Chillicothe, 1803-10 |
| 2014-03-01 | ___ Drive, thoroughfare by the Lincoln Memorial in Washington |
| 2013-10-02 | Home of Miami University |
| 2013-09-08 | River into which the Great Miami flows |
| 2013-08-28 | Home of the U.S.'s largest cities whose names start with X and Z |
| 2013-06-05 | Louisville's river |
| 2013-02-10 | Athens's home |
| 2013-01-13 | The Wright brothers' home |
| 2012-10-09 | The Allegheny and Monongahela join to form it |
| 2012-09-09 | What the French once called "la Belle Rivière" |
| 2012-08-20 | Home of Lima and Toledo |
| 2012-05-23 | Answer to the old riddle "What's round on the sides and high in the middle?" |
| 2012-05-11 | Home to the Browns and the Reds |
| 2012-04-18 | State with a large Amish population |
| 2012-03-04 | Cairo's river |
| 2012-02-07 | Indiana's smallest county or the river it touches |
| 2011-10-25 | Indiana/Kentucky border river |
| 2011-08-31 | Home of the Rock and Roll Hall of Fame |
| 2011-08-28 | Mississippi River's largest tributary |
| 2011-07-18 | Cincinnati's place |
| 2011-06-05 | So-called Mother of Presidents |
| 2011-02-06 | One of the Three Rivers |
| 2010-12-12 | River forming the borders of parts of five states |
| 2010-05-25 | Kent State locale |
| 2010-04-20 | River that ends at Cairo |
| 2009-12-25 | 1970 hit by Crosby, Stills, Nash and Young |
| 2009-11-13 | Title locale in a Leonard Bernstein song where "life was so cozy" |
| 2009-09-06 | River into which the Big Sandy flows |
| 2009-08-04 | Its license plates say "Birthplace of Aviation" |
| 2009-03-19 | The Bobcats of the Mid-American Conference |
| 2008-11-05 | One of the Three Rivers |
| 2008-10-07 | One of Pittsburgh's three rivers |
| 2008-07-30 | Home to Columbus |
| 2008-07-28 | One of the states touched by 15-Across |
| 2008-01-03 | Allegheny + Monongahela |
| 2007-12-24 | Akron's home |
| 2007-09-10 | Birthplace of seven U.S. presidents |
| 2007-08-15 | Wheeling's river |
| 2007-05-31 | I-90 runs through it |
| 2007-05-16 | Athens's setting |
| 2007-03-25 | Canton's home |
| 2007-02-01 | Mid-American Conference team |
| 2007-01-14 | Grant's birthplace |
| 2006-12-13 | Where John Glenn was senator |
| 2006-10-04 | Miami River's outlet |
| 2006-07-24 | Birthplace of seven U.S. presidents |
| 2006-05-15 | Buckeye State |
| 2005-12-17 | One of the rivers near Three Rivers Stadium |
| 2005-07-30 | Home to Athens |
| 2005-07-13 | Buckeye State |
| 2005-07-12 | Kent State's state |
| 2005-04-17 | So-called Birthplace of Aviation |
| 2005-04-06 | Canton's home |
| 2005-03-30 | Baltimore partner |
| 2004-11-22 | The Buckeye State |
| 2004-11-02 | Perennial battleground state |
| 2004-10-08 | Cairo's river |
| 2004-04-20 | Kent State state |
| 2004-03-22 | Birthplace of seven U.S. presidents |
| 2004-03-16 | Home to Columbus |
| 2003-11-11 | John Glenn's state |
| 2003-07-29 | The Buckeye State |
| 2003-06-18 | Home for Ulysses G. Grant |
| 2003-01-13 | Cincinnati's home |
| 2002-10-15 | Akron's home |
| 2002-09-23 | Columbus's home |
| 2002-07-28 | Home of the First Ladies National Historic Site |
| 2002-06-30 | Where Athens and Dublin are |
| 2002-04-22 | Where the Reds and the Browns play |
| 2002-03-11 | Buckeye's home |
| 2002-03-04 | Cincinnati's home |
| 2002-01-15 | See 9-Across |
| 2002-01-02 | Home to Columbus |
| 2001-07-13 | Ulysses Grant's birthplace |
| 2001-04-11 | Where Canton is |
| 2001-01-01 | Buckeye State |
| 2000-12-20 | West Virginia border river |
| 2000-11-02 | Where Ivory soap and the pop-top can were invented |
| 2000-10-17 | Buckeye's home |
| 2000-10-03 | Buckeye's home |
| 2000-04-19 | Wheeling's river |
| 2000-02-13 | "The Drew Carey Show" setting |
| 2000-02-12 | ___ Valley Conference |
| 1999-12-30 | See 63-Across |
| 1999-11-22 | Not-so-lazy river |
| 1999-11-20 | Cairo's river |
| 1999-11-01 | Louisville's river |
| 1999-10-20 | Where Lima is |
| 1999-04-05 | Louisville's river |
| 1998-12-07 | The Buckeye State |
| 1998-10-29 | Wheeling's river |
| 1998-06-12 | Home to Columbus |
| 1998-06-10 | Oberlin locale |
| 1998-01-13 | Birthplace of seven Presidents |
| 1997-12-22 | Toledo's home |
| 1997-06-02 | Louisville's river |
| 1997-04-07 | Kent's state |
| 1997-03-23 | Mississippi feeder |
| 1997-02-13 | Athens's home |
| 1996-09-17 | Glenn's state |
| 1996-07-08 | Akron's home |
| 1996-03-17 | One of the three rivers of Three Rivers Stadium |
| 1996-01-16 | Bobcats of college football |
| 1995-12-04 | Louisville's river |
| 1995-09-20 | Columbus's home |
| 1995-09-03 | Hit protest song of 1970 |
| 1995-08-30 | Miami University location |
| 1995-04-03 | Buckeye State |
| 1995-03-09 | Miami of _____ |
| 1995-03-06 | Buckeye State |
| 1995-02-12 | Home to 19 Congressmen |
| 1995-01-04 | Xenia's state |
| 1994-08-10 | Wheeling's river |
| 1994-08-08 | Sherwood Anderson's "Winesburg, _____" |
| 1994-04-10 | Football Hall of Fame locale |
| 1994-01-05 | Xenia's home |
| 1993-12-11 | Columbus's home |