Cambridge is a city in Story County, Iowa, United States.

According to the United States Census Bureau, the city has a total area of 1.10 square miles (2.85 km2), all land.

There were 337 housing units at an average density of 252.6 per square mile (97.5/km2).

There were 342 housing units at an average density of 310.9 per square mile (120.0/km2).

21.6% of all households were made up of individuals, and 10.9% had someone living alone who was 65 years of age or older.

There were 328 housing units at an average density of 318.2 per square mile (122.9/km2).

22.9% of all households were made up of individuals, and 7.6% had someone living alone who was 65 years of age or older.

Cambridge is served by the Ballard Community School District.