ZIP Code 19803
standardSource:
Wilmington · New Castle County · Delaware
- Population
- 21,364
- Median income
- $135,218
- Median home value
- $457,200
- Bachelor's or higher
- 60.9%
- Land area
- 32.6 sq mi
655/sq mi
▲ 77% vs US
higher than 94% of US ZIPs
▲ 64% vs US
higher than 84% of US ZIPs
Median age 46.4
New York
ZIP code 19803 in Wilmington, Delaware has a population of 21,364. The median household income is $135,218, which is 77% above the national average. Median home value is $457,200, 64% above the US average. 60.9% of residents hold a bachelor's degree or higher.
ZIP code 19803 is classified by USPS as a standard delivery area and covers roughly 32.6 square miles in Wilmington, New Castle County, Delaware. The area is home to 21,364 residents, producing a population density of 655 people per square mile, and falls within the New York time zone. These USPS and Census boundary values drive every downstream statistic on this page, including the benchmarks that compare 19803 against Delaware and the nation.
On the economic side, the median household income for ZIP 19803 sits at $135,218 (51% above the Delaware average), while per-capita income is $70,999. The poverty rate stands at 2.0% and the unemployment rate at 5.4%. On housing, the median home value is $457,200 (21% above the state average) with median rent at $1,722 per month, and 89.1% of occupied units are owner-occupied, a direct signal of whether 19803 behaves more like a homeowner neighborhood or a renter-heavy ZIP.
Education and household profile round out the picture: 60.9% of adults hold a bachelor's degree or higher, the median age is 46.4, and the average commute is 23 minutes. We also surface 10 nearby ZIP codes within roughly 10 miles and 6 additional ZIPs sharing New Castle County, so you can benchmark 19803 against its immediate geography rather than a national average alone. Every figure is sourced from the U.S. Census Bureau American Community Survey 5-Year Estimates, HUD Fair Market Rents, and FHFA Home Price Index data, no estimates, no proprietary scoring. Verify with HUD →
Top industries in ZIP 19803
Top 5 sectors by establishment count
Which industries have the most business establishments in ZIP 19803.
- Professional, scientific, and technical services
Professional, scientific, and technical services
153 establishments
- Retail trade
Retail trade
152 establishments
- Health care and social assistance
Health care and social assistance
120 establishments
- Finance and insurance
Finance and insurance
115 establishments
- Accommodation and food services
Accommodation and food services
103 establishments
What this shows Establishment counts come from the Census ZIP Code Business Patterns program, which counts physical business locations rather than employees or revenue.
Source: U.S. Census Bureau, American Community Survey 5-Year Estimates + ZIP Code Business Patterns + HUD FMR + FHFA HPI ACS demographics, ZBP business establishments, HUD Fair Market Rents, FHFA HPI for ZIP 19803, Wilmington, DE · 2023 Census ACS 5-Year Estimates use a rolling 60-month sample for stable small-geography estimates; ZBP updated annually; HUD FMR + FHFA HPI updated quarterly/annually.
Quick Facts
21,364
Population
32.6
Area (sq mi)
655
People / sq mi
New York
Time Zone
standard
ZIP Type
Who lives in ZIP 19803?
46.4
Median Age
51.4%
Male
48.6%
Female
7.6%
Foreign-Born
Hispanic or Latino is an ethnicity category from the Census Bureau and may overlap with other categories above.
Source: U.S. Census Bureau, ACS 5-Year Estimates (2023)
How much do residents earn?
$135,218
Median Household Income
+51% vs state
$70,999
Per Capita Income
2.0%
Poverty Rate
5.4%
Unemployment Rate
23.1 min
Mean Commute Time
Source: U.S. Census Bureau, ACS 5-Year Estimates (2023)
What is the education profile here?
Source: U.S. Census Bureau, ACS 5-Year Estimates (2023)
What does housing look like?
8,831
Total Housing Units
8,679
Occupied Units
152
Vacant Units
2.49
Avg Household Size
Occupancy Type
$457,200
Median Home Value
+21% vs state
$1,722
Median Rent
1960
Median Year Built
Source: U.S. Census Bureau, ACS 5-Year Estimates (2023)
How have home values changed over time?
FHFA House Price Index, annual appreciation data based on repeat sales and appraisals
+5.0%
YoY Change (2024)
242
HPI Index (2000 = 100)
+142%
Total Change Since 2000
Home values in ZIP 19803 have increased 5.0% over the past year (2024). Since 2000, this ZIP has seen +142% cumulative appreciation.
| Year | Annual Change | HPI Index |
|---|---|---|
| 2020 | +2.5% | 172 |
| 2021 | +9.1% | 188 |
| 2022 | +10.8% | 208 |
| 2023 | +10.7% | 230 |
| 2024 | +5.0% | 242 |
Source: Federal Housing Finance Agency (FHFA) House Price Index, All-Transactions, Five-Digit ZIP Codes (Developmental Index). Index base = 100 in year 2000. Data through 2024. ZIP codes with few transactions may show missing values.
What businesses operate in this ZIP?
Census Bureau data shows 1,108 business establishments in ZIP 19803, employing approximately 27,716 people with a combined annual payroll of $2,694,812,000.
1,108
Businesses
27,716
Employees
$2.7B
Annual Payroll
16
Industry Sectors
| Industry | Establishments | % of Total |
|---|---|---|
| Professional, scientific, and technical services | 153 | 13.8% |
| Retail trade | 152 | 13.7% |
| Health care and social assistance | 120 | 10.8% |
| Finance and insurance | 115 | 10.4% |
| Accommodation and food services | 103 | 9.3% |
| Management of companies and enterprises | 82 | 7.4% |
| Administrative and support and waste management and remediation services | 78 | 7.0% |
| Other services (except public administration) | 76 | 6.9% |
| Real estate and rental and leasing | 63 | 5.7% |
| Construction | 37 | 3.3% |
| Information | 33 | 3.0% |
| Wholesale trade | 30 | 2.7% |
| Arts, entertainment, and recreation | 23 | 2.1% |
| Manufacturing | 18 | 1.6% |
| Transportation and warehousing | 11 | 1.0% |
| Educational services | 11 | 1.0% |
Source: U.S. Census Bureau, ZIP Code Business Patterns (ZBP), 2023. Employment figures may include noise for disclosure avoidance.
Nearby ZIP Codes
Want a side-by-side? Compare 19803 vs 19732 →
| ZIP Code | City | Population | Distance |
|---|---|---|---|
| 19732 | Rockland, DE | 25 | 1.9 mi |
| 19710 | Montchanin, DE | 41 | 2.5 mi |
| 19810 | Wilmington, DE | 25,011 | 2.3 mi |
| 19802 | Wilmington, DE | 24,621 | 3.1 mi |
| 19806 | Wilmington, DE | 9,560 | 2.8 mi |
| 19735 | Winterthur, DE | 12 | 3.2 mi |
| 19807 | Wilmington, DE | 7,405 | 3.6 mi |
| 19801 | Wilmington, DE | 16,286 | 4.9 mi |
| 19809 | Wilmington, DE | 14,049 | 3.5 mi |
| 19703 | Claymont, DE | 14,471 | 4.5 mi |
More ZIP Codes in New Castle County
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Frequently Asked Questions
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ZIP Code Research Guides
Official Data Resources for Wilmington, DE
Verify and explore additional data for this area using these official government sources.
Source: U.S. Census Bureau, ACS 5-Year Estimates (2023). Business data: Source: Census ZIP Code Business Patterns (ZBP) 2023. Home value trends: Source: FHFA House Price Index (HPI), Five-Digit ZIP Codes.
PlainZIP is not affiliated with the U.S. Census Bureau or any government agency.
Read our methodology , how this data is sourced, computed, and verified.