Knierim, IA has a population of 72 and is the 27,601st largest city in the United States. The population density is 72 per sq mi which is 31% higher than the Iowa average and 21% lower than the national average. The median age in Knierim is 36 which is approximately 5% lower than the Iowa average of 38. In Knierim, 50% of the population over 15 years of age are married, 100% speak English and 0% speak Spanish. 86% of Knierim residents were born in Iowa, 14% were born out of state, 0% were born outside of the United States and 0% were foreign born.
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The population density in Knierim is 31% higher than Iowa.
The median age in Knierim is 5% lower than Iowa.
In Knierim 100.00% of the population is White.
In Knierim 0.00% of the population is Black or African American.