New Boston is an unincorporated community in eastern Linn County, Missouri, United States. It is located on Route 129 about twelve miles northeast of Brookfield.
New Boston was laid out in 1846, and named after Boston, Massachusetts. A post office called New Boston has been in operation since 1872.
Coordinates: 39°57′07″N 92°51′35″W / 39.95194°N 92.85972°W