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Based on the 2014 state population estimates from the U.S. Census Bureau, Delaware's overall average population density was up to about 376 residents per square mile in July 2014. Based on the data from the 2010 U.S. Census, Kent County's average population density was about 275 residents per square mile and Sussex County's was about 210, but New Castle County (the northernmost one) had an average population density of about 1264 residents per square mile.

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10y ago

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