19803 ZIP Code, Wilmington, DE
19803 is a ZIP code in Wilmington, Delaware in New Castle County. It covers 13 square miles of land. The closest ZIP codes are 19732, 19810 and 19710. 22,279 people live here in 8,679 households. At about 1,760 people per square mile it has suburban density, and most homes are owner-occupied (89%). Median household income is $135,218, well above the Delaware median of $84,954; the median age is 46.4, older than most ZIP codes.
Quick facts
- Mailing city: Wilmington, DE
- County: New Castle County
- Land area: 13 sq mi
- Population: 22,279
- Median household income: $135,218
- Carrier routes: 26 (8,959 homes)
Key figures
| Measure | Value |
|---|---|
| Residents | 22,279 |
| Households | 8,679 |
| Median household income | $135,218 |
| Income per person | $70,999 |
| Median age | 46.4 |
| Homeowners | 89.1% |
| Median home value | $457,200 |
| Median rent | $1,722 |
| Bachelor's degree or higher | 60.9% |
| Average commute (minutes) | 23.1 |
| Households with kids under 18 | 28.3% |
| Moved in the past year | 6.0% |
| Below the poverty line | 2.0% |
| Broadband internet | 96.3% |
| Speak a non-English language at home | 9.4% |
Household income
| % of households | Value |
|---|---|
| <$10K | 1.5% |
| $10–15K | 0.9% |
| $15–25K | 2.7% |
| $25–35K | 3.0% |
| $35–50K | 6.0% |
| $50–75K | 9.8% |
| $75–100K | 10.6% |
| $100–150K | 21.9% |
| $150–200K | 13.1% |
| $200K+ | 30.5% |
Age
| % of all residents | Value |
|---|---|
| <10 | 10.8% |
| 10–19 | 11.8% |
| 20–24 | 3.8% |
| 25–34 | 10.0% |
| 35–44 | 12.6% |
| 45–54 | 13.6% |
| 55–64 | 13.4% |
| 65–74 | 13.9% |
| 75+ | 10.1% |
Tenure
| % of housing units | Value |
|---|---|
| Owned, with mortgage | 59.7% |
| Owned outright | 28.2% |
| Rented | 10.4% |
| Vacant | 1.7% |
Type of building
| % of housing units | Value |
|---|---|
| Detached house | 86.3% |
| Townhome | 5.5% |
| 2–4 units | 1.2% |
| 5–19 units | 2.0% |
| 20+ units | 4.9% |
| Mobile / other | 0.0% |
Businesses in 19803
1,108 business establishments with 27,716 employees (ZIP Codes Business Patterns 2023).
- Professional, Scientific, and Technical Services: 153
- Retail Trade: 152
- Health Care and Social Assistance: 120
- Finance and Insurance: 115
- Accommodation and Food Services: 103
- Management of Companies and Enterprises: 82
- Administrative and Support and Waste Management and Remediation Services: 78
- Other Services (except Public Administration): 76
EDDM carrier routes
19803 has 26 USPS carrier routes with 8,959 residential and 685 business mailboxes. Open the EDDM route map.
Carrier routes in 19803
19803 has 26 USPS carrier routes (26 city (C)) with 8,959 residential and 685 business mailboxes. Routes range from 135 homes (C002) to 444 homes (C024); the median route has 350 homes. The Census counted 8,679 households in 19803 (2020–2024 average); USPS counts current mailboxes, including new and vacant homes.
| Homes per route | Routes |
|---|---|
| 1–249 | 3 |
| 250–499 | 23 |
| 500–749 | 0 |
| 750–999 | 0 |
| 1,000–1,499 | 0 |
| 1,500+ | 0 |
Best routes in 19803 for…
Most businesses
For B2B offers: office supplies, cleaning, IT, catering and commercial services.
- Route C027 — USPS business mailboxes 184, 249 homes
- Route C002 — USPS business mailboxes 181, 135 homes
- Route C011 — USPS business mailboxes 90, 259 homes
- Route C021 — USPS business mailboxes 77, 353 homes
- Route C005 — USPS business mailboxes 52, 423 homes
Select these 5 routes on the route map
Every carrier route in 19803
| Route | Type | Homes | Businesses | Est. median income | Est. owners | Est. families with kids | Est. moved in past year |
|---|---|---|---|---|---|---|---|
| C001 | City | 186 | 10 | $123,912 | — | — | — |
| C002 | City | 135 | 181 | $133,035 | — | — | — |
| C003 | City | 327 | 3 | $111,161 | — | — | — |
| C004 | City | 331 | 0 | $111,161 | — | — | — |
| C005 | City | 423 | 52 | $123,912 | — | — | — |
| C006 | City | 346 | 0 | $111,161 | — | — | — |
| C007 | City | 336 | 3 | $111,161 | — | — | — |
| C008 | City | 318 | 2 | $124,218 | — | — | — |
| C009 | City | 336 | 3 | $124,218 | — | — | — |
| C010 | City | 374 | 0 | $102,870 | — | — | — |
| C011 | City | 259 | 90 | $181,185 | — | — | — |
| C012 | City | 422 | 3 | $120,227 | — | — | — |
| C013 | City | 424 | 0 | $131,745 | — | — | — |
| C014 | City | 299 | 44 | $174,904 | — | — | — |
| C016 | City | 371 | 2 | $114,915 | — | — | — |
| C017 | City | 413 | 0 | $133,035 | — | — | — |
| C018 | City | 388 | 0 | $119,611 | — | — | — |
| C019 | City | 372 | 3 | $200,001+ | — | — | — |
| C020 | City | 363 | 6 | $133,035 | — | — | — |
| C021 | City | 353 | 77 | $200,001+ | — | — | — |
| C022 | City | 325 | 12 | $123,912 | — | — | — |
| C023 | City | 325 | 1 | $200,001+ | — | — | — |
| C024 | City | 444 | 2 | $87,355 | — | — | — |
| C025 | City | 422 | 0 | $119,611 | — | — | — |
| C027 | City | 249 | 184 | $87,355 | — | — | — |
| C031 | City | 418 | 7 | $114,915 | — | — | — |
Income, owners, families and movers are estimates for each route (how we estimate them); mailbox counts are current USPS figures. Open 19803 on the EDDM route map.
How route demographics are estimated
Mailbox counts come from USPS; demographics are estimates
The number of homes and businesses on each carrier route is the current USPS EDDM count. The Census Bureau does not publish figures for carrier routes, so income, homeownership, ages, families, movers and housing age on a route are EDDM2GO estimates built from Census block groups (neighborhood areas of roughly 600 to 3,000 people).
How a route gets its figures: the block-group length-share method
We trace each route's streets every 25 meters and record which block group each stretch falls in. The route's homes are spread along its streets in proportion to length, so a route with 60% of its street length in one block group is assumed to have 60% of its homes there. Each block group then contributes its Census counts in proportion to the share of its housing units that sit on the route (capped at the whole block group). Medians are recalculated from the combined income, home-value and age brackets, the way the Census Bureau computes them, not averaged.
Margins of error
Census survey figures carry a margin of error at 90% confidence; we carry it through the calculation and show it as ±. Our margins treat the route-to-block-group split as exact, so the real uncertainty is larger. Routes with fewer than 100 estimated households, large margins, or streets we could not place are flagged.
Different years
USPS mailbox counts are current. Census figures are 5-year averages for 2020–2024, so a new subdivision may have more homes on the route today than the Census counted. Use the route figures to compare routes with each other, not as an exact head count.
Why some routes show identical figures
Two routes that run through the same block group get the same percentages and medians, because the Census publishes one set of figures for the whole block group. Their mailbox counts still differ, and those are exact.
Route and mailbox counts: USPS EDDM route data. Route demographics: EDDM2GO estimates from U.S. Census Bureau American Community Survey 5-year block-group data (2020–2024) and 2024 cartographic block-group boundaries. This product uses the Census Bureau Data API but is not endorsed or certified by the Census Bureau.
Nearby ZIP codes
- 19732 (1.7 mi)
- 19810 — Arden village, DE (2.3 mi)
- 19710 (2.4 mi)
- 19806 — Wilmington city, DE (2.8 mi)
- 19735 (3 mi)
- 19802 — Wilmington city, DE (3.2 mi)
- 19809 — Wilmington city, DE (3.7 mi)
- 19807 — Greenville CDP, DE (3.8 mi)
Areas that include 19803
- Wilmington, DE ZIP codes — 10 ZIP codes
- New Castle County ZIP codes — 32 ZIP codes
- Delaware ZIP code data
Where it ranks
- No. 3 of 23: highest median household income in New Castle County
- No. 4 of 23: highest median home value in New Castle County
- No. 3 of 23: highest share of owner-occupied homes in New Castle County
- No. 4 of 24: highest median age in New Castle County
- No. 2 of 10: highest median household income in Wilmington, DE
- No. 2 of 10: highest median home value in Wilmington, DE
- No. 1 of 10: highest share of owner-occupied homes in Wilmington, DE
- No. 4 of 10: highest share of households with children in Wilmington, DE
- No. 3 of 10: highest median age in Wilmington, DE
- No. 5 of 10: fastest population growth in Wilmington, DE
Mail every home in 19803
Route counts on this page price as Full Service 6.5 × 9 postcards: we print, bundle by carrier route and hand the mailing to USPS. Prefer to take it to the Post Office yourself? Print only costs less and you pay postage at drop-off.
EDDM guides
ZIP code statistics describe the Census ZIP Code Tabulation Area (ZCTA) 19803, which approximates the USPS ZIP code area. Census figures: American Community Survey 5-year estimates, 2020–2024.
Frequently asked questions
- What city is 19803 in?
- 19803 is a Wilmington, DE mailing address. None of its land lies inside a Census-defined city or community.
- What county is 19803 in?
- 19803 is in New Castle County.
- What is the population of 19803?
- About 22,279 people (±1,291), according to the Census Bureau's American Community Survey 5-year estimates for 2020–2024. The 2020 Census counted 21,886.
- What is the median household income in 19803?
- $135,218 (±$9,114), compared with $84,954 for Delaware as a whole. Half the households in the ZIP code earn more and half earn less.
- How many carrier routes and mailboxes are in 19803?
- 26 USPS carrier routes with 8,959 residential and 685 business mailboxes (9,644 in all), from the route data stored by EDDM2GO. An EDDM mailing can target any combination of these routes.
- What ZIP codes are near 19803?
- The closest, measured center to center: 19732 (1.7 mi), 19810 (2.3 mi, Arden), 19710 (2.4 mi), 19806 (2.8 mi, Wilmington), 19735 (3 mi) and 19802 (3.2 mi, Wilmington).
This product uses the Census Bureau Data API but is not endorsed or certified by the Census Bureau.