New Liberty is a city in Scott County, Iowa, United States.

[3] According to the United States Census Bureau, the city has a total area of 0.10 square miles (0.26 km2), all land.

There were 60 housing units at an average density of 667.2 per square mile (257.6/km2).

There were 60 housing units at an average density of 600.0 per square mile (231.7/km2).

The racial makeup of the city was 92.7% White, 4.4% African American, and 2.9% from two or more races.

26.9% of all households were made up of individuals, and 17.3% had someone living alone who was 65 years of age or older.

20.0% of all households were made up of individuals, and 13.3% had someone living alone who was 65 years of age or older.

There were 14.3% of families and 19.5% of the population living below the poverty line, including 21.4% of under eighteens and 11.1% of those over 64.