Hartly, DE has a population of 50 and is the 28,170th largest city in the United States. The population density is 883 per sq mi which is 140% higher than the Delaware average and 875% higher than the national average. The median age in Hartly is 30 which is approximately 25% lower than the Delaware average of 40. In Hartly, 73% of the population over 15 years of age are married, 100% speak English and 0% speak Spanish. 54% of Hartly residents were born in Delaware, 40% were born out of state, 2% were born outside of the United States and 4% were foreign born.
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The population density in Hartly is 140% higher than Delaware.
The median age in Hartly is 25% lower than Delaware.
In Hartly 100.00% of the population is White.
In Hartly 0.00% of the population is Black or African American.