New Castle County is a county in the U.S. state of Delaware, DE with an estimated population of 559,335 as of July 1, 2018 and is thus ranked 817 in the United States.
In contrast to the 2010 census, the population of New Castle County was still 538,479. This means that the 2018 population percent change from 2010 population of New Castle County has risen by 3.9%.
New Castle County is formed in 1664 and covers an total area of 494.00 square miles. This area is divided into 426.29 square miles land area and 67.72 square miles water area. Density per square kilometre of land area are 1,263.2 of population in 510.2 housing units.
There were 217,511 housing units in the whole of New Castle County for the 2010 census with 202.651 total households, 134.743 of them family households. At the 1990 census, the population of New Castle County was still 441,946. 2011 population percent change from 1990 population of New Castle County was still 21,84 %, or expressed in detail 96.533 inhabitants. 2017 ACS Population - High School Diploma or more as a percent of 2017 ACS Population - Population 25 and over was 91.0% (percent) and is ranked number 778 of all counties in the United States.
Labor Force 2018 in New Castle County was 298,915 and is ranked number 115, with a Unemployment Rate 2018 of 3.7 % (percent), which is ranked on number 1697 of all counties in the United States. Median Household Income 2017 was $66,839 (percent), which is ranked on number 321 of all counties in the United States. To the area of New Castle County also includes Philadelphia-Camden-Wilmington, PA-NJ-DE-MD Metropolitan Statistical Area and Philadelphia-Reading-Camden, PA-NJ-DE-MD Combined Statistical Area.