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Alleman, Iowa
Alleman Iowa 20090503 Sign.JPG
Location of Alleman, Iowa
Location of Alleman, Iowa
Country  United States
State  Iowa
County Polk
 • Total 2.94 sq mi (7.61 km2)
 • Land 2.94 sq mi (7.61 km2)
 • Water 0.00 sq mi (0.00 km2)
1,007 ft (307 m)
 • Total 423
 • Density 144.02/sq mi (55.61/km2)
Time zone UTC-6 (Central (CST))
 • Summer (DST) UTC-5 (CDT)
ZIP code
Area code(s) 515
FIPS code 19-01180
GNIS feature ID 0454132

Alleman is a city in Polk County, Iowa, United States. The population was 423 at the 2020 census. It is part of the Des MoinesWest Des Moines Metropolitan Statistical Area.


Alleman Iowa 20090503 City Hall
Alleman City Hall

Alleman was named for early settler John L. Alleman. It did not incorporate as a city until May 18, 1973, making it the most recent city to incorporate in Polk County.


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


Historical populations
Year Pop. ±%
1980 307 —    
1990 340 +10.7%
2000 439 +29.1%
2010 432 −1.6%
2020 423 −2.1%
Source: and Iowa Data Center
U.S. Decennial Census
The population of Alleman, Iowa from US census data

2010 census

As of the census of 2010, there were 432 people, 151 households, and 130 families residing in the city. The population density was 160.0 inhabitants per square mile (61.8/km2). There were 152 housing units at an average density of 56.3 per square mile (21.7/km2). The racial makeup of the city was 98.4% White, 0.2% Asian, and 1.4% from two or more races.

There were 151 households, of which 37.7% had children under the age of 18 living with them, 74.2% were married couples living together, 8.6% had a female householder with no husband present, 3.3% had a male householder with no wife present, and 13.9% were non-families. 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. The average household size was 2.86 and the average family size was 3.09.

The median age in the city was 41.3 years. 28.5% of residents were under the age of 18; 7% were between the ages of 18 and 24; 21.3% were from 25 to 44; 35.9% were from 45 to 64; and 7.4% were 65 years of age or older. The gender makeup of the city was 50.5% male and 49.5% female.


Local TV Iowa Tower Alleman
Alleman Iowa 20090503 School
North Polk Community High School

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


Because of its central location and relatively high altitude for central Iowa, two Doppler weather radar stations are located in Alleman: WHO-TV 13's First Alert Mega Doppler, and KCCI-TV 8's Super Doppler 8. A storm in July 2011 resulted in the radome from the Mega Doppler being torn from the structure and landing in a nearby yard.

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. The specific antennas are:

  • Local TV Iowa Tower Alleman, 609.6 m (2,000 ft), constructed in 1972.
  • Des Moines Hearst-Argyle Television Tower Alleman, 609.6 m (2,000 ft), constructed in 1974.
  • Saga Communications Tower Alleman, 469.1 m (1,539 ft), constructed in 1982.
  • American Towers Tower Alleman, 609.3 m (1,999 ft), constructed in 2001.


The community is within the North Polk Community School District. Alleman is the home of North Polk High School, North Polk Middle School, North Polk Central Elementary School, North Polk bus barn, and the North Polk District Office. A new high school and outdoor activities facility were opened in 2013.

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