Millsboro, DE 19966 ZIP Code Profile

Related Place Profiles:
Long Neck, DE | Millsboro, DE

ZIP Code 19966: Basic Data & USPS Preferred City Name

Preferred Name, USPS
Millsboro, DE 19966

Acceptable Alternative
Long Neck, DE 19966

  • ZIP Code Type: STANDARD
  • County: Sussex County
  • Centroid: Latitude 38.605, Longitude -75.223
  • Time Zone: Eastern Time Zone (UTC -5 hours)
  • Observes DST: Yes
  • Businesses Addresses: 648
  • PO Box Addresses: 617
  • Residential Addresses: 14,391
    • Multi-Family Addresses: 981
    • Single Family Addresses: 13,410

The ZIP Code maps and database are updated 4 times per year.
Database updated: May 1, 2018, Maps updated: February 1, 2018.

EXTREMELY LOCAL Demographic Data

Address Based Hyperlocal Data Input an address and get data & demographics for the pertinent census block group (CBG), a searchable map and a customized directory. The CBG is the smallest geographical unit used by the Census Bureau for reporting demographic data.


19966 ZIP Code Map

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Millsboro, DE 19966 Data & Demographics (As of July 1, 2017)


Total Population 30,098
Daytime Population: Workers 10,001
Daytime Population: Residents 16,454
Total Daytime Population (TDP) 26,455
Ratio TDP/Total Population1 0.88
Population in Households 29,856
Population in Familes 23,678
Population in Group Qrtrs 242
Population Density2 339
Diversity Index3 44


Median Household Income $52,656
Average Household Income $67,267
Per Capita Income $28,471


Total Housing Units 18,994 (100%)
Owner Occupied HU 9,850 (51.9%)
Renter Occupied HU 2,799 (14.7%)
Vacant Housing Units 6,345 (33.4%)
Median Home Value $201,933
Average Home Value $236,173


Total Households 12,649
Average Household Size 2.36
Family Households 8,486
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 2.86% 2.79%
Households 2.75% 2.7%
Families 2.69% 2.64%
Median Household Income   2.3%
Per Capita Income   2.79%

Millsboro, DE 19966 - Peer Comparisons by Rank and Percentile

The table below compares 19966 to the other 65 ZIP Codes 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 # 11 85th
Population Density # 36 46th
Diversity Index # 33 52nd
Median Household Income # 50 25th
Per Capita Income # 30 55th

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

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