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:
{| class="wikitable"
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! County !! Named for !! Remarks
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| Newton County, Arkansas || Thomas Willoughby Newton || County seat is Jasper
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| Newton County, Georgia || Sgt. John Newton || Adjacent to Jasper County, Georgia
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| Newton County, Indiana || Sgt. John Newton || Adjacent to Jasper County, Indiana
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| Newton County, Mississippi || Sir Isaac Newton || Adjacent to Jasper County, Mississippi
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| Newton County, Missouri || Sgt. John Newton || Adjacent to Jasper County, Missouri
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| Newton County, Texas || Sgt. John Newton || Adjacent to Jasper County, Texas
|}