The area that Insulators Local 50 covers grew as a result of a 2005 merger between Local 44 in Columbus and Local 79 in Dayton, our jurisdiction extends from the eastern to western borders of the state of Ohio and two counties in Indiana.
Both of the below indicated zones host a maintained and up-to-date union hall and training center. Those locations are located in Columbus and Dayton.
Zone 1
State of Ohio Counties of:
- Athens
- Auglaize
- Clinton
- Crawford
- Delaware
- Fairfield
- Fayette
- Franklin
- Guernsey
- Hardin
- Hocking
- Knox
- Licking
- Madison
- Marion
- Morgan
- Morrow
- Muskingum
- Noble
- Perry
- Pickaway
- Ross
- Union Vinton
Zone 2
State of Ohio Counties of:
- Champaign
- Clark
- Darke
- Greene
- Logan
- Miami
- Montgomery
- Preble
- Shelby
Townships of:
- Butler County
- Lemon
- Madison
- Warren County
- Clear Creek
- Franklin
- Massie
- Turtle Creek
- Wayne
State of Indiana Counties of:
- Randolph
- Wayne
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