2021 Ohio Fair Dates - Chronological Fair 2021 Dates Paulding County Fair June 12-June 19 Pickaway County Fair June 19-June 26 Harrison County Fair June 21-June 26 Putnam County Fair June 21-June 26 Marion County Fair June 28-July 3 Clinton County Fair July 10-July 17 Lawrence County Fair July 10-July 17 Madison County Fair July 10-July 17 Adams County Fair July 11-July 17 Logan County Fair July 11-July 17 Montgomery County Fair July 11-July 17 Lucas County Fair July 12-July 18 Trumbull County Fair July 13-July 18 Jackson County Fair July 15-July 24 Crawford County Fair July 19-July 24 Fayette County Fair July 19-July 24 Perry County Fair July 19-July 24 Warren County Fair July 19-July 24 Carroll County Fair July 19-July 25 Franklin County Fair July 19-July 25 Ottawa County Fair July 19-July 25 Clark County Fair July 23-July 30 Vinton County Fair July 24-July 31 Butler County Fair July 25-July 31 Clermont County Fair July 25-July 31 Knox County Fair July 25-July 31 Shelby County Fair July 25-July 31 Union County Fair July 25-July 31 Seneca County Fair July 26-August 1 Lake County Fair July 27-August 1 Summit County Fair July 27-August 1 Ohio State Fair July 28-August 8 Pike County Fair July 30-August 7 Preble County Fair July 31-August 7 Auglaize County Fair August 1-August 7 Gallia County Fair August 2-August 7 Greene County Fair August 2-August 7 Columbiana County Fair August 2-August 8 Medina County Fair August 2-August 8 Wood County Fair August 2-August 9 Champaign County Fair August 6-August 13 Athens County Fair August 6-August 14 Ross County Fair August 7-August 14 Hartford Independent Fair August 8-August 14 Richland County Fair August 8-August 14 Holmes County Fair August 9-August 14 Scioto County Fair August 9-August 14 Attica Independent Fair August 10-August 14 Ashtabula County Fair August 10-August 15 Cuyahoga County Fair August 10-August 15 Erie County Fair August 10-August 15 Hamilton County Fair August 12-August 15 Henry County Fair August 12-August 19 Mercer County Fair August 13-August 19 Miami County Fair August 13-August 19 Muskingum County Fair August 15-August 21 Jefferson County Fair August 15-August 22 Huron County Fair August 16-August 21 Meigs County Fair August 16-August 21 Allen County Fair August 20-August 28 Darke County Fair August 20-August 28 Defiance County Fair August 21-August 28 Lorain County Fair August 22-August 29 Monroe County Fair August 23-August 28 Portage County Fair August 24-August 29 Sandusky County Fair August 24-August 29 Noble County Fair August 29-September 4 Morrow County Fair August 30-September 6 Stark County Fair August 31-September 6 Van Wert County Fair August 31-September 6 Hancock County Fair September 1-September 6 Mahoning County Fair September 1-September 6 Richwood Independent Fair September 1-September 6 Geauga County Fair September 2-September 6 Fulton County Fair September 3-September 9 Washington County Fair September 4-September 7 Highland County Fair September 5-September 11 Belmont County Fair September 6-September 12 Morgan County Fair September 7-September 11 Hardin County Fair September 7-September 12 Albany Independent Fair September 8-September 12 Wayne County Fair September 11-September 16 Williams County Fair September 11-September 18 Hocking County Fair September 13-September 18 Wyandot County Fair September 13-September 18 Guernsey County Fair September 13-September 19 Bellville Independent Fair September 15-September 18 Delaware County Fair September 18-September 25 Ashland County Fair September 19-September 25 Tuscarawas County Fair September 20-September 26 Barlow Independent Fair September 23-September 26 Brown County Fair September 27-October 2 Coshocton County Fair October 1-October 7 Loudonville Independent Fair October 5-October 9 Fairfield County Fair October 10-October 16.