Riverton is a city in Fremont County, Iowa, United States, along the East Nishnabotna River.

[4] The land on which the town was platted originally belonged to Coleman and Grazilla (Zimmerman) Smith.

The 1881 robbery of the Sexton Bank at Riverton was initially suspected to be the work of Jesse James, but it was soon correctly attributed to the outlaw Poke Wells.

According to the United States Census Bureau, the city has a total area of 0.59 square miles (1.53 km2), all land.

There were 123 housing units at an average density of 204.1 per square mile (78.8/km2).

There were 131 housing units at an average density of 222.0 per square mile (85.7/km2).

27.5% of all households were made up of individuals, and 10% had someone living alone who was 65 years of age or older.

There were 144 housing units at an average density of 240.7 per square mile (92.9/km2).

33.6% of all households were made up of individuals, and 14.4% had someone living alone who was 65 years of age or older.

About 11.0% of families and 16.5% of the population were below the poverty line, including 12.9% of those under the age of eighteen and 20.5% of those 65 or over.