The Akron-Canton-Youngstown Division

Ohio Counties: Carroll, Columbiana, Harrison, Mahoning, Portage, Stark, Summit, Trumbull, Tuscarawas, and Wayne (Except Wooster)

The Keystone Division

Ohio Counties: Belmont, Jefferson, Monroe, and Noble;
Pennsylvania Counties: Allegheny, Armstrong, Beaver, Butler, Fayette, Greene, Indiana, Lawrence, Mercer, Washington, and Westmoreland;
West Virginia Counties: Barbour, Brook, Doddridge, Grant, Hancock, Harrison, Marion, Marshall, Monongalia, Ohio, Preston, Taylor, Tucker, Tyler, and Wetzel

Keystone Flyer

The Miami Valley Division

Ohio Counties: Champaign, Clark, Dark, Greene, Mercer, Miami, Montgomery, Preble, and Shelby;
Indiana Counties: Adams, Blackford, Fayette, Grant, Henry, Huntington, Jay, Randolph, Rush, Union, Wabash, Wayne, and Wells

The North Coast Division

Ohio Counties: Cuyahoga, Erie, Huron, Lorain, and Medina

The Western Reserve Division

Ohio Counties: Ashtabula, Lake, and Geauga

The Buckeye Division

Ohio Counties: Ashland, Coshocton, Delaware, Fairfield, Fayette, Franklin, Guernsey, Hardin, Highland, Hocking, Holmes, Knox, Licking, Logan, Madison, Marion, Morrow, Muskingham, Perry, Pickaway, Richland, Ross, Union, and the city of Wooster in Wayne

The Cincinnati Division

Ohio Counties: Brown, Butler, Clermont, Clinton, Hamilton, and Warren;
Indiana Counties: Dearborn, Decatur, Franklin, Ohio, Ripley, and Switzerland;
Kentucky Counties: Boone, Bracken, Campbell, Carroll, Gallatin, Grant, Kenton, Mason, Owen, Pendleton, and Robertson

Central Kentucky and Southern Indiana

Indiana Counties: Clark, Crawford, Floyd, Harrison, Jefferson, Scott, and Washington;
Kentucky Counties: Allen, Barren, Breckenridge, Bullitt, Edmonson, Grayson, Green, Hardin, Hart, Henry, Jefferson, LaRue, Marion, Meade, Metcalfe, Monroe, Nelson, Oldham, Shelby, Spencer, Taylor, Trimble, Warren, and Washington

The Coal Division

Kentucky Counties: Boyd, Greenup, Lawrence, and Lewis
Ohio Counties: Adams, Athens, Gallia, Jackson, Lawrence, Meigs, Morgan, Pike, Scioto, Vinton, and Washington
West Virginia Counties: Boone, Braxton,Cabell, Calhoun, Clay, Fayette, Gilmer, Greenbrier, Jackson, Kanawha, Lewis, Lincoln, Logan, Mason, McDowell, Mercer, Mingo, Monroe, Nicholas, Pleasants, Pocahontas, Putnam, Raleigh, Randolph, Ritchie, Roane, Summers, Upshur, Wayne, Webster, Wirt, Wood, and Wyoming

The Kentucky Division

Kentucky Counties: Adair, Anderson, Bath, Bell, Bourbon, Boyle, Breathitt, Carter, Casey, Clark, Clay, Clinton, Cumberland, Elliot, Estill, Fayette, Fleming, Floyd, Franklin, Garrard, Harlan, Harrison, Jackson, Jessamine, Johnson, Knott, Knox, Laurel, Lee, Leslie, Letcher, Lincoln, Madison, Magoffin, Martin, Menifee, Mercer, McCreary, Montgomery, Morgan, Nicholas, Owsley, Perry, Pike, Powell, Pulaski, Rockcastle, Rowan, Russell, Scott, Wayne, Whitley, Wolfe, and Woodford

The Alleghany Plateau Division

Pennsylvania Counties: Cameron, Clarion, Clinton, Clearfield, Elk, Forest, Jefferson, and Venango

The Alleghany Western Division

New York Counties: Alleghany, Cattaraugus, and Chautauqua
Pennsylvania Counties: Crawford, Erie, McKean, Potter and Warren.

The NMRA