Bertram, IA has a population of 341 and is the 21,774th largest city in the United States. The population density is 203 per sq mi which is 257% higher than the Iowa average and 124% higher than the national average. The median age in Bertram is 45 which is approximately 18% higher than the Iowa average of 38. In Bertram, 75% of the population over 15 years of age are married, 96% speak English and 4% speak Spanish. 78% of Bertram residents were born in Iowa, 21% were born out of state, 0% were born outside of the United States and 1% were foreign born.
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The population density in Bertram is 257% higher than Iowa.
The median age in Bertram is 18% higher than Iowa.
In Bertram 94.72% of the population is White.
In Bertram 1.17% of the population is Black or African American.