ZIP Code Tabulation Area · Delaware

ZIP Code 19966: Sussex County, DE

ZIP Code 19966 (Sussex County, Delaware) has an estimated 35,884 residents in 15,435 households. The median household income is $78,305, the median home value is $317,500 and the median gross rent is $1,325/mo. Figures are U.S. Census Bureau American Community Survey 2020–2024 5-year estimates for the matching ZIP Code Tabulation Area.

American Community Survey 2020–2024 5-year estimates · Updated

Total population

35,884

Margin of error ±1,795

Median household income

$78,305

Margin of error ±$3,009

Median home value

$317,500

Margin of error ±$15,546

Median gross rent

$1,325/mo

Margin of error ±$143

Median age

53.9 yrs

Margin of error ±3.3 yrs

Mean travel time to work

29.6 min

Margin of error ±4.0 min

How ZIP 19966 compares with Delaware and the U.S.

State and national figures are the Census Bureau's own estimates for those areas from the same ACS release, not averages of ZIP codes.

Median age

ZIP 1996653.9 yrsDelaware41.6 yrsUnited States38.9 yrs

Median household income

ZIP 19966$78,305Delaware$84,954United States$80,734

Per capita income

ZIP 19966$42,477Delaware$45,375United States$44,673

Poverty rate

ZIP 1996611.8%Delaware10.4%United States12.5%

Unemployment rate

ZIP 199666.5%Delaware5.1%United States5.2%

Bachelor's degree or higher

ZIP 1996626.1%Delaware35.8%United States35.7%

Median home value

ZIP 19966$317,500Delaware$352,000United States$332,700

Median gross rent

ZIP 19966$1,325/moDelaware$1,401/moUnited States$1,413/mo

Owner-occupied homes

ZIP 1996682.2%Delaware73.0%United States65.2%

Mean travel time to work

ZIP 1996629.6 minDelaware26.0 minUnited States26.4 min

Worked from home

ZIP 1996612.2%Delaware15.0%United States15.1%

All figures for ZIP 19966

Each estimate has a 90% margin of error: the true value is likely within that range. * marks estimates with a large margin of error (a coefficient of variation above 30%, or ±10 percentage points or more for rates).

ZIP 19966 — ACS 2020–2024 5-year estimates
MeasureZIP 19966Margin of errorDelawareUnited States
Total population35,884±1,7951,021,191334,922,499
Median age53.9 yrs±3.3 yrs41.6 yrs38.9 yrs
Households15,435±756402,038129,227,496
Median household income$78,305±$3,009$84,954$80,734
Per capita income$42,477±$2,283$45,375$44,673
Poverty rate11.8%±3.9 pts10.4%12.5%
Unemployment rate6.5%±2.2 pts5.1%5.2%
Bachelor's degree or higher26.1%±2.2 pts35.8%35.7%
Median home value$317,500±$15,546$352,000$332,700
Median gross rent$1,325/mo±$143$1,401/mo$1,413/mo
Owner-occupied homes82.2%±2.2 pts73.0%65.2%
Mean travel time to work29.6 min±4.0 min26.0 min26.4 min
Worked from home12.2%±2.0 pts15.0%15.1%

Race and Hispanic or Latino origin

Shares of the total population by the Census Bureau's race and Hispanic or Latino origin categories (table B03002), listed in the Census Bureau's order. People self-identify on the survey.

Population by race and Hispanic or Latino origin, ZIP 19966
GroupZIP 19966DelawareUnited States
White alone, not Hispanic or Latino71.5%58.1%57.4%
Black or African American alone, not Hispanic or Latino7.9%21.4%11.9%
American Indian and Alaska Native alone, not Hispanic or Latino0.4%0.1%0.5%
Asian alone, not Hispanic or Latino1.8%4.3%5.9%
Native Hawaiian and Other Pacific Islander alone, not Hispanic or Latino0.0%0.0%0.2%
Some other race alone, not Hispanic or Latino0.9%0.5%0.6%
Two or more races, not Hispanic or Latino5.3%4.5%4.3%
Hispanic or Latino (of any race)12.2%11.0%19.3%

Where ZIP 19966 is

State
Delaware
Main county
Sussex County
Largest overlapping place
Millsboro (6% of the ZIP's land area)
Land area
89.08 sq mi· about 403 people per sq mi

County and place names come from the Census Bureau's 2020 ZCTA relationship files. A ZIP code's mailing city, set by the U.S. Postal Service, can differ from these names.

Other ZIP codes in Sussex County

19930 Bethany Beach, DE19931 Bethel, DE19933 Sussex County, DE19939 Sussex County, DE19940 Sussex County, DE19941 Sussex County, DE19944 Fenwick Island, DE19945 Sussex County, DE19947 Sussex County, DE19950 Sussex County, DE19951 Sussex County, DE19956 Sussex County, DE19958 Sussex County, DE19960 Sussex County, DE19963 Sussex County, DE19967 Millville, DE19968 Sussex County, DE19970 Ocean View, DE19971 Sussex County, DE19973 Sussex County, DE19975 Sussex County, DE

See every ZIP code in Delaware, or compare ZIP 19966 with another ZIP code.

Census figures describe residents as a group and cannot tell you about any one home or street. For a specific address, check local government and housing records.

About ZIP codes and ZCTAs: the Census Bureau publishes statistics for ZIP Code Tabulation Areas, which approximate USPS ZIP code delivery areas. Learn how they differ.

Sources

  • U.S. Census Bureau, American Community Survey 2020–2024 5-year estimates, detailed tables B01003, B01002, B11001, B19013, B19301, B17001, B23025, B15003, B25077, B25064, B25003, B08013, B08303, B08301, B03002 — snapshot Oct 26, 2026.
  • U.S. Census Bureau, 2020 ZCTA5 relationship files (county and place).
  • Data: U.S. Census Bureau, American Community Survey 5-year estimates (detailed tables) and 2020 Census ZCTA relationship files. This product uses the Census Bureau Data API but is not endorsed or certified by the Census Bureau. These agencies do not endorse OpenZIP.