Marston is a city in New Madrid County, Missouri, United States.

[5] The city is situated along U.S. Route 61, just west of the Mississippi River.

According to the United States Census Bureau, the city has a total area of 1.11 square miles (2.87 km2), all land.

There were 249 housing units at an average density of 224.3 per square mile (86.6/km2).

34.5% of all households were made up of individuals, and 11.6% had someone living alone who was 65 years of age or older.

There were 302 housing units at an average density of 274.1 per square mile (105.8/km2).

31.3% of all households were made up of individuals, and 14.3% had someone living alone who was 65 years of age or older.