Caldwell, ID has a population of 50,288 and is the 811th largest city in the United States. The population density is 2,246 per sq mi which is 11674% higher than the Idaho average and 2379% higher than the national average. The median age in Caldwell is 30 which is approximately 17% lower than the Idaho average of 36. In Caldwell, 55% of the population over 15 years of age are married, 73% speak English and 26% speak Spanish. 51% of Caldwell residents were born in Idaho, 38% were born out of state, 0% were born outside of the United States and 11% were foreign born.
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The population density in Caldwell is 11674% higher than Idaho.
The median age in Caldwell is 17% lower than Idaho.
In Caldwell 87.65% of the population is White.
In Caldwell 0.67% of the population is Black or African American.