Alleman is a city in Polk County, Iowa, United States.

[4] According to the United States Census Bureau, the city has a total area of 2.70 square miles (6.99 km2), all land.

There were 157 housing units at an average density of 63.7 per square mile (24.6/km2).

11.3% of all households were made up of individuals, and 2.7% had someone living alone who was 65 years of age or older.

4.3% of all households were made up of individuals, and 2.1% had someone living alone who was 65 years of age or older.

The Heartland Cooperative grain storage facility is located in Alleman, with a capacity of 774,000 US bushels (27,300,000 L).

A storm in July 2011 resulted in the radome from the Mega Doppler being torn from the structure and landing in a nearby yard.

[citation needed] Because Alleman is located about midway between Des Moines and Ames, many radio and television stations transmit from towers located in the town.

These towers include some of the world's tallest structures, reaching over 600 metres (2,000 ft).

Along with the towers, a large portion of the Alleman low-altitude airspace is obstructed by the many guy-wires supporting the structures, making the area extremely hazardous for small, low-altitude aircraft.