Zip Code 19803
Wilmington, Delaware — New Castle County
📍 ZIP code 19803 is in Wilmington, New Castle County, Delaware.
ZIP code 19803 is located in Wilmington, New Castle County, Delaware. It is a zip code in the Eastern (EST/EDT) Time Zone with an estimated population of 21,971. The area code for ZIP code 19803 is 302.
Quick Answer
Zip code 19803 is in Wilmington, Delaware (New Castle County). It has a population of 21,971, median household income of $133,941, and median home value of $436,200.
Population
21,971
Income
$133,941
Home Value
$436,200
Climate
84°F / 24°F
About Zip Code 19803
Zip code 19803 is located in Wilmington, Delaware, within New Castle County. Home to approximately 21,971 residents, this area sits at an elevation of 364 ft and falls within the Eastern (EST/EDT) timezone. The local area code is 302.
The median household income is $133,941 per year, which is above the national median of $70,784. Homes in this zip code have a median value of $436,200, and the cost of living index is 151 (51% above the national average of 100).
Summers average a high of 84°F while winters drop to 24°F. The area receives about 50 in of rain and 12 in of snow annually. The zip code covers 12.6 square miles of land area.
Key Statistics
21,971
$133,941
$436,200
Eastern (EST/EDT)
302
364 ft
12.6 sq mi
46.4
8,900
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Compare With Nearby Zip Codes
| Metric | 19803 | 19732 | 19810 | 19710 | 19806 | 19802 |
|---|---|---|---|---|---|---|
| City | Wilmington, DE | Rockland, DE | Wilmington, DE | Montchanin, DE | Wilmington, DE | Wilmington, DE |
| Population | 21,971 | 155 | 25,859 | 26 | 9,934 | 25,670 |
| Median Income | $133,941 | $250,001 | $110,486 | $0 | $86,240 | $54,370 |
| Home Value | $436,200 | $704,900 | $420,300 | $0 | $370,500 | $188,400 |
| Cost of Living | 151 | 233 | 140 | 100 | 118 | 67 |
| Median Age | 46.4 | 72.7 | 46.1 | 58.4 | 49.8 | 37 |
Cost of Living
100 = National Average. Wilmington's cost of living is 51% above the national average.
vs. State Avg
Above
Affordability
Expensive
Income-to-Home
3.3x
Demographics
Zip code 19803 has a population of 21,971 people with a median age of 46.4. There are 8,900 housing units in this area.
Racial & Ethnic Composition
Source: U.S. Census Bureau American Community Survey estimates.
Population History
Wilmington (19803) population trend from 2010 to 2024
↑ 22.2%Source: U.S. Census Bureau estimates and American Community Survey data.
Climate & Weather
84°F
24°F
50 in
12 in
Wilmington experiences warm summers with average highs around 84°F. Winters are cool with lows averaging 24°F. The area receives about 12 in of snow per year.
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Housing & Economy
Median Home Value
$436,200
Median Household Income
$133,941
With 8,900 housing units across 12.6 square miles, 19803 has a housing density of 706 units per square mile. The home price-to-income ratio is 3.3x.
Location & Geography
Latitude
39.8007°
Longitude
-75.5424°
Land Area
12.6 sq mi
Water Area
0 sq mi
Nearby Zip Codes
Zip codes closest to 19803 (Wilmington, DE) with distances:
All Zip Codes in Wilmington, DE
Other zip codes serving Wilmington:
ZIP Codes with Similar Income Nationwide
The five U.S. ZIP codes whose median household income is closest to 19803's $133,941. A way to compare Wilmington to economically similar communities elsewhere in the country.
Computed from U.S. Census Bureau ACS 5-Year Estimates by the Zip Code Near Me Data Team.
ZIP Codes with Similar Demographics
The five U.S. ZIP codes whose racial and ethnic composition most closely matches 19803 (Wilmington, DE). Similarity is measured by cosine distance on the five-category ACS demographic vector.
Computed from U.S. Census Bureau ACS 5-Year Estimates by the Zip Code Near Me Data Team.
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People Also Ask
What zip code is Wilmington, Delaware?
Wilmington, Delaware uses zip code 19803 along with 9 other zip codes.
What county is zip code 19803 in?
Zip code 19803 is located in New Castle County, Delaware.
What is the population of zip code 19803?
The population of zip code 19803 is 21,971 with a median age of 46.4.
Is 19803 in Wilmington, Delaware?
Yes, zip code 19803 is in Wilmington, New Castle County, Delaware. The area code is 302.
Frequently Asked Questions
What city is zip code 19803 in?
Zip code 19803 is in Wilmington, Delaware. It is part of New Castle County and uses the Eastern (EST/EDT) timezone.
What is zip code 19803?
Zip code 19803 is a U.S. postal code in Wilmington, Delaware (New Castle County). It has a population of 21,971 and covers 12.6 square miles.
What is the population of zip code 19803?
The population of zip code 19803 (Wilmington, DE) is 21,971 with a median age of 46.4. There are approximately 8,900 housing units in this area.
What is the median income in zip code 19803?
The median household income in zip code 19803 (Wilmington, DE) is $133,941 per year. The cost of living index is 151 (100 = national average).
What is the average home price in zip code 19803?
The median home value in zip code 19803 (Wilmington, DE) is $436,200. The cost of living index is 151 compared to the national average of 100.
What county is zip code 19803 in?
Zip code 19803 is located in New Castle County, Delaware. The primary city is Wilmington.
What is the area code for zip code 19803?
Zip code 19803 in Wilmington, DE uses area code 302. It is located in the Eastern (EST/EDT) timezone.
Is zip code 19803 a good place to live?
Zip code 19803 (Wilmington, DE) has a cost of living index of 151 (100 = national average), a median household income of $133,941, and median home values of $436,200. The median age is 46.4. Visit the full page for demographics, climate, and nearby zip code comparisons.
What is the cost of living in zip code 19803?
The cost of living index for zip code 19803 (Wilmington, DE) is 151, where 100 represents the national average. This area is above the national average. Median home value: $436,200.
What schools serve zip code 19803?
Zip code 19803 in Wilmington, Delaware is served by the local school district of New Castle County. For specific school information, check your state's department of education or GreatSchools.org.
All demographic data on this page is sourced from the U.S. Census Bureau American Community Survey (ACS) 5-Year Estimates. ZIP code boundary and delivery data is sourced from the United States Postal Service (USPS). Data is updated periodically and may not reflect the most current figures. Census Bureau ZIP Code Tabulation Areas (ZCTAs) may differ slightly from USPS ZIP code boundaries.
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Data Sources
- Population, income, housing, age, and demographics
- U.S. Census Bureau, American Community Survey 5-Year Estimates, 2019-2023 vintage.
- ZIP to city and county mapping
- USPS and HUD-USPS ZIP-County Crosswalk.
- Time zones and area codes
- IANA tz database and NANPA.
- Elevation
- U.S. Geological Survey National Elevation Dataset (NED), via the USGS Elevation Point Query Service. Mapped to each ZCTA centroid coordinates. Last refreshed 2026-05-19.
- Last refreshed
- 2026-05-18.