Clarence is a city in Cedar County, Iowa, United States.

According to the United States Census Bureau, the city has a total area of 0.68 square miles (1.76 km2), all land.

There were 489 housing units at an average density of 642.2 per square mile (247.9/km2).

Hispanic or Latino persons of any race comprised 1.3% of the population.

There were 455 housing units at an average density of 669.1 per square mile (258.3/km2).

34.0% of all households were made up of individuals, and 19.1% had someone living alone who was 65 years of age or older.

There were 453 housing units at an average density of 716.5 per square mile (276.6/km2).

The racial makeup of the city was 99.21% White, 0.10% Native American, 0.20% Asian, and 0.50% from two or more races.

33.1% of all households were made up of individuals, and 24.1% had someone living alone who was 65 years of age or older.

The former was formed on July 1, 1973 by the merger of the Clarence and Lowden school districts.