The way a plane would fly, given the the earth is a globe, the halfway point would actually be in Quebec, Canada. It does not look like that on a map, because maps are flat. If you look at it on a globe you will see how it actually is. Flights from Ireland to the USA normally go over Canada. If the world was flat, looking on a map the halfway point would be over the Atlantic Ocean, so no US State would be at the halfway point.
it is just a part in the atlantic ocean
Either Nebraska or Kansas
Amarillo, Texas is midway between Thibodaux LA and las Vegas Nevada
Area 51 in Nevada. Tonopah, Nevada.
Gold Run, CA
The city that is halfway between Virginia and Lexington, KY is Clear Creek, West Virginia. It is the geographical halfway point.
Boise, Texas
The halfway point between Las Vegas, Nevada and Marcellus, Michigan is Cornell, Nebraska.
Approximately halfway between Henderson, Nevada and New York City is Lincoln, Nebraska.
North pole, ak
Groom, Texas is the halfway point between Northport, Alabama and Las Vegas, Nevada. Please see the related link for Meetways, a site providing halfway point information.
Buster Mountain, Nevada (Approximately 454 miles)
The halfway point between Fernley, NV, and Lebanon, OR, is on US-139 at the Tulelake Municipal Airport in California. The nearest large city is Klamath Falls, OR.