Elk River, ID has a population of 114 and is the 26,580th largest city in the United States. The population density is 786 per sq mi which is 4020% higher than the Idaho average and 768% higher than the national average. The median age in Elk River is 63 which is approximately 75% higher than the Idaho average of 36. In Elk River, 74% of the population over 15 years of age are married, 91% speak English and 3% speak Spanish. 36% of Elk River residents were born in Idaho, 63% were born out of state, 1% were born outside of the United States and 0% were foreign born.
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The population density in Elk River is 4020% higher than Idaho.
The median age in Elk River is 75% higher than Idaho.
In Elk River 100.00% of the population is White.
In Elk River 0.00% of the population is Black or African American.