Newton Hamilton is a borough (established April 12, 1843) in Mifflin County, Pennsylvania, United States.

[3] On June 15, 1762, Hugh Brown obtained a warrant for two hundred and fifty acres of land, a portion of which would later become known as the borough of Newton Hamilton.

Sixty by one hundred and thirty feet each, those lots were located on what is, today, the south side of Newton Hamilton's Second Street.

[5] In February and October 1828, respectively, Patrick and James Moffit bought land in Newton Hamilton and "lived in a plastered house by the spring," according to Ellis.

John Postlethwait then opened and began operating a tavern in 1829, which later became known as the Logan House, and which was followed by the store openings of Robert Thompson & Co. and Richard A. McDowel & Co.[6] By 1830, the town also had a school, which was operated by Samuel Cross in a house adjacent to the land that would become the site of the Sigler mansion.

Within six years, the town had grown to include the following residents and workers:[5] On March 24, 1838, civic officials in Wayne Township bought James Irvine's tracts of land that had been purchased from Margaret Hamilton in 1803.

It was during this period that Newton Hamilton separated itself from the township in order to become an "independent district" in 1844.

By 1845, multiple blacksmiths and boatmen were residing in the community while working nearby, John Sigler was operating a tannery plant and John Lowry and Riley J. Richards were engaged in cabinet making while merchants operating businesses here included John Bolsbach, James D. and Samuel Morrison, James North, and Joseph C. Seckler.

Destroyed during a flood on October 8, 1880, it was rebuilt at a cost of $14,895 by G. W. Keiffer of Sunbury, Pennsylvania and completed on February 11, 1881.