Newtonia is a village in Newton County, Missouri, United States.

It is a farming community and is immediately adjacent to Stark City, Missouri.

[4] A post office called Newtonia was established in 1858, and remained in operation until 1973.

[6] In 2008, a tornado struck the village, damaging many homes (including the Mathew H. Ritchey House).

[citation needed] Newtonia is located on Missouri Route 86, approximately nine miles east of Neosho.

[7] According to the United States Census Bureau, the village has a total area of 0.33 square miles (0.85 km2), all land.

23.0% of all households were made up of individuals, and 16.3% had someone living alone who was 65 years of age or older.

About 12.7% of families and 15.3% of the population were below the poverty line, including 21.4% of those under the age of eighteen and 16.1% of those 65 or over.