New Castle County DE Information


New Castle County Subdivisions

New Castle County DE Data & Demographics (As of July 1, 2018)


Total Population 571,485
Population in Households 554,074
Population in Familes 445,542
Population in Group Qrtrs 17,411
Population Density1 1,341
Diversity Index2 64


Median Household Income $67,165
Average Household Income $90,368
Per Capita Income $34,269


Total Housing Units 228,155 (100%)
Owner Occupied HU 141,638 (62.1%)
Renter Occupied HU 71,722 (31.4%)
Vacant Housing Units 14,795 ( 6.5%)
Median Home Value $260,593
Average Home Value $300,679


Total Households 213,360
Average Household Size 2.6
Family Households 140,543
Average Family Size 3
  1. Population Density = Total Population per square mile.
  2. The Diversity Index is a scale of 0 to 100 that represents the likelihood 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.


2010-2017 2017-2022
Population 0.72% 0.71%
Households 0.63% 0.66%
Families 0.51% 0.58%
Median Household Income   1.84%
Per Capita Income   1.33%


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, 2018 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 Density # 1 100th
Diversity Index # 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.