I'm not an expert (because I'm from London, England) but I would probably say Lexington, Kentucky.
There is 610 miles between Milwaukee, Wisconsin, and Toronto, Canada. The halfway point between these two cities is Lansing, Michigan.
Hudson, OH
The halfway point between Sioux Falls, South Dakota and Statesville, North Carolina is O'Fallon, Illinois.
Fort Niagara Beach, New York is halfway between Lebanon & Milwaukee
The halfway point between Chicago, Illinois and St. Louis, Missouri is McLean, Illinois according to MeetWays.com.
Eureka Center, Wisconsin is the halfway point.
Midland is the halfway point between Lexington South Carolina and Bennettsville.
The halfway point between Wisconsin (WI) and Vermont (VT) is Pepper Pike, Ohio.
Jacksonport, Wisconsin, is the answer.
somewhere in Wisconsin
Ebenezer, Wisconsin is halfway between Frankfort & Mosinee
North Dakota