Madrid (/ˈmædrɪd/ MAD-rid) is a city in Douglas Township, Boone County, Iowa, United States.

[3] According to the United States Census Bureau, the city has a total area of 1.19 square miles (3.08 km2), all land.

Initially, coal was used locally for winter heating, hence the reason for it being considered a part-time job by most residents.

The Carpenter Coal Company opened a mine between Madrid and Woodward in 1901, and the Reese Brothers Coal Company opened two mine shafts near Madrid.

[6] In 1912, Locals 709 and 2460 of the United Mine Workers union, both based in Madrid, had an aggregate membership of 397, representing about 1/3 of the total population in 1910.

[7] Madrid gained a large Italian and Croatian population who worked in its coal mines during the 1920s and 1930s.

[8] In 2017 the town was featured in an episode of Madrid de sol a sol, a show from Spanish public channel Telemadrid exploring locations named "Madrid".

There were 1,227 housing units at an average density of 1,002.2 per square mile (386.9/km2).

29.8% of all households were made up of individuals, and 13.4% had someone living alone who was 65 years of age or older.

26.5% of all households were made up of individuals, and 13.3% had someone living alone who was 65 years of age or older.