The halfway point between Decatur, Illinois, and Phoenix, Arizona falls in Clarendon, Texas.
The town of Marana is about halfway.
On a map, it looks to be close to Eagle Mountain.
Elk City, OK
Oklahoma City is a halfway point between Ironton, Ohio and Phoenix, AZ.
Springfield, North Carolina is the halfway point.
Hereford, Texas
Banner, Oklahoma.
Guymon, Oklahoma is half way between Phoenix and Colchester, Illinois
The halfway point between Phoenix, AZ, and Washington, DC, is generally around the area of Oklahoma City, OK. This location is approximately equidistant from both cities and offers a convenient stopping point for travelers. The exact halfway point may vary slightly depending on the specific route taken.
Panhandle, TX
Fort Hancock, TX