Cascade is a city in Dubuque and Jones counties, Iowa, United States.

The Dubuque County portion is part of Dubuque Metropolitan Statistical Area, while the Jones County section is part of Cedar Rapids Metropolitan Statistical Area.

Between 1880 and 1936, the town was connected to Bellevue via the Chicago, St. Paul & Milwaukee Railroad Company.

The roadbed curves and grades were considered too extreme for conversion to standard gauge.

[4] U.S. Route 151 runs through Cascade but in 2002, a four-lane bypass took traffic north around the city.

According to the United States Census Bureau, the city has a total area of 1.87 square miles (4.84 km2), all land.

There were 1,050 housing units at an average density of 546.7 per square mile (211.1/km2).

There were 974 housing units at an average density of 520.9 per square mile (201.1/km2).

29.4% of all households were made up of individuals, and 14.5% had someone living alone who was 65 years of age or older.

There were 820 housing units at an average density of 725.0 per square mile (279.9/km2).

The racial makeup of the city was 99.28% White, 0.10% Native American, 0.10% Asian, and 0.51% from two or more races.

29.9% of all households were made up of individuals, and 13.3% had someone living alone who was 65 years of age or older.