Newton County is the name of six counties in the United States. All except for Arkansas (and perhaps Mississippi) are named for Sgt. John Newton, a soldier of the American Revolutionary War who became a fictionalized hero. Many counties share a boundary with a Jasper County, named after Sgt. William Jasper, a similarly distinguished soldier.
The following counties are called Newton County:
| County | Named for | Remarks |
|---|---|---|
| Newton County, Arkansas | Thomas Willoughby Newton | County seat is Jasper |
| Newton County, Georgia | Sgt. John Newton | Adjacent to Jasper County, Georgia |
| Newton County, Indiana | Sgt. John Newton | Adjacent to Jasper County, Indiana |
| Newton County, Mississippi | Sir Isaac Newton[Note 1] | Adjacent to Jasper County, Mississippi |
| Newton County, Missouri | Sgt. John Newton | Adjacent to Jasper County, Missouri |
| Newton County, Texas | Sgt. John Newton | Adjacent to Jasper County, Texas |
