New Castle County DE Information


New Castle County Subdivisions

New Castle County DE Data & Demographics (As of July 1, 2016)


Total Population 558,087
Population in Households 539,970
Population in Familes 431,573
Population in Group Qrtrs 18,117
Population Density1 1,309
Diversity Index2 62


Total Households 208,896
Average Household Size 2.58
Family Households 137,943
Average Family Size 3


Total Housing Units 224,549 (100%)
Owner Occupied HU 141,197 (62.9%)
Renter Occupied HU 67,699 (30.1%)
Vacant Housing Units 15,653 ( 7.0%)
Median Home Value $259,339
Average Home Value $296,804


Median Household Income $64,827
Average Household Income $88,353
Per Capita Income $33,637
  (Compound Annual Growth Rates)


2010-2015 2015-2020
Population 0.57% 0.66%
Households 0.49% 0.63%
Families 0.38% 0.56%
Median Household Income   2.86%
Per Capita Income   1.69%
1) Population Density = Total Population per square mile.
2) The Diversity Index is a scale of 0 to 100 that represents the likelyhood that two persons, chosen at random from the same area, belong to different race or ethnic groups. If an area's entire population belongs to one race AND one ethnic group, then the area has zero diversity. An area's diversity index increases to 100 when the population is evenly divided into two or more race/ethnic groups.
Based on Census 2010 counts, the Diversity Index for the United States was 60.6 and it is expected to increase to 64.8 by July 1, 2018.


New Castle County DE - Peer Comparisons by Rank and Percentile

The table below compares New Castle County to the other 3 counties and county equivalents in Delaware by rank and percentile using July 1, 2016 data. The location Ranked # 1 has the highest value. A location that ranks higher than 75% of its peers would be in the 75th percentile of the peer group.

Variable Description Rank Percentile
Total Population # 1 100th
Population Density1 # 1 100th
Diversity Index2 # 1 100th
Median Household Income # 1 100th
Per Capita Income # 1 100th

Additional comparisons and rankings can be made with a VERY EASY TO USE Delaware Census Data Comparison Tool.