New Castle County DE Information


New Castle County Subdivisions

New Castle County DE Data & Demographics (As of July 1, 2017)


Total Population 566,709
Daytime Population: Workers 298,418
Daytime Population: Residents 281,517
Total Daytime Population (TDP) 579,935
Ratio TDP/Total Population1 1.02
Population in Households 548,603
Population in Familes 438,405
Population in Group Qrtrs 18,106
Population Density2 1,329
Diversity Index3 63


Median Household Income $67,153
Average Household Income $89,833
Per Capita Income $34,194


Total Housing Units 226,714 (100%)
Owner Occupied HU 142,528 (62.9%)
Renter Occupied HU 69,677 (30.7%)
Vacant Housing Units 14,509 ( 6.4%)
Median Home Value $263,605
Average Home Value $296,693


Total Households 212,205
Average Household Size 2.59
Family Households 140,194
Average Family Size 3
  1. If the ratio of the TDP to Total Population is greater than 1, the location gains population during the day when commuting workers are present. If the ratio is less than 1, the location is more of a bedroom community where people commute to another place for work.
  2. Population Density = Total Population per square mile.
  3. 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 0.71% 0.59%
Households 0.64% 0.57%
Families 0.55% 0.51%
Median Household Income   2.03%
Per Capita Income   2.0%


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, 2017 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.