Doon is a city in Lyon County, Iowa, United States, along the Rock River.

Located on a plateau on the eastern bank of the Rock River, the city was named after the River Doon in Scotland,[4] made famous as the subject of Robert Burns' poem, "The Banks O' Doon".

According to the United States Census Bureau, the city has a total area of 0.57 square miles (1.48 km2), all land.

[6] The city is served by U.S. Route 75, three miles east of Doon, connected by Iowa Highway 167.

There were 247 housing units at an average density of 352.0 per square mile (135.9/km2).

There were 224 housing units at an average density of 393.0 per square mile (151.7/km2).

26.6% of all households were made up of individuals, and 14.4% had someone living alone who was 65 years of age or older.

There were 217 housing units at an average density of 376.2 per square mile (145.3/km2).

22.8% of all households were made up of individuals, and 9.9% had someone living alone who was 65 years of age or older.

Doon is served by the Central Lyon Community School District.