Marion County Fair Fireworks Date: July 4, 2017 at dusk Where: Marion County Fairgrounds 220 E Fairground St Marion, OH 43302 Click here for the 2017 List of Firework Displays in the Mid Ohio area! Firework Displays for the Richland, Ashland, Knox, Holmes, Wayne, Medina, Stark, Summit, Cuyahoga, Lorain, Erie, Huron, Wyandot, Crawford, Marion, Morrow, Delaware, and Franklin counties.