Black Rock, AR has a population of 692 and is the 17,556th largest city in the United States. The population density is 211 per sq mi which is 280% higher than the Arkansas average and 132% higher than the national average. The median age in Black Rock is 44 which is approximately 17% higher than the Arkansas average of 38. In Black Rock, 50% of the population over 15 years of age are married, 99% speak English and 1% speak Spanish. 75% of Black Rock residents were born in Arkansas, 25% 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 Black Rock is 280% higher than Arkansas.
The median age in Black Rock is 17% higher than Arkansas.
In Black Rock 97.40% of the population is White.
In Black Rock 0.00% of the population is Black or African American.