New Ross is a town in Walnut Township, Montgomery County, in the U.S. state of Indiana.

New Ross, then called Valley City, was platted by John Browning in 1855.

[6] In an early map from 1864, the area now known as New Ross was called "Mace".

[7] (Note that Mace is an unincorporated area northwest of New Ross on U.S. Route 136.)

According to the U.S. Census Bureau, New Ross has a total area of 0.30 square miles (0.78 km2), all land.

[1] The town is drained by unnamed tributaries of Big Raccoon Creek, which passes just south of the town and runs southwest to the Wabash River near Montezuma.

There were 147 housing units at an average density of 459.4 per square mile (177.4/km2).

29.6% of all households were made up of individuals, and 11.1% had someone living alone who was 65 years of age or older.

24.8% of all households were made up of individuals, and 14.0% had someone living alone who was 65 years of age or older.