ZIP code · Wilmington · Delaware · United States
ZIP code 19803 — Wilmington
ZIP code 19803 serves Wilmington, Delaware.
- Postal code
- 19803Single source Value from one source, not cross-checked.
- City
- Wilmington
- County
- New Castle FIPS 10003
- State
- Delaware
- Country
- United States
- Coordinates
- 39.7994, -75.5317 — precision precise (locality)
View on OpenStreetMap - Population
- 21,971 (ZCTA, ACS 5-year)
- Population density
- 1,735 / sq mi
- Land area
- 12.7 sq mi (32.8 km²) (ZCTA, ACS 5-year)
- Median household income
- $133,941
- Per-capita income
- $73,167
- Median age
- 46.4
- Households
- 8,723
- Housing units
- 8,900
- Median home value
- $436,200
- Median gross rent
- $1,736 / month
- Congressional district
- DE At-large (119th Congress)
- USDA hardiness zone
- 7b (5 to 10 °F)Planting / growing zone from the 2023 USDA Plant Hardiness Zone Map: average annual extreme minimum temperature, 1991–2020.
- Time zone
- America/New_York (UTC−5 / UTC−4 DST)
- Area code
- 302Telephone area codes serving this ZIP (NANPA central-office assignments). A ZIP and an area code are different boundaries; at a border both codes may apply.
Tools: compare 19803 with another ZIP · ZIPs within 25 miles · distance from 19803
Nearby localities
Map of ZIP code 19803
Climate — monthly normals
Warmest month Jul (avg high 84°F), coldest Jan (avg low 24°F).
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high °F | 38 | 41 | 49 | 61 | 71 | 79 | 84 | 82 | 75 | 63 | 53 | 43 |
| Avg low °F | 24 | 25 | 32 | 43 | 52 | 62 | 67 | 66 | 59 | 47 | 37 | 29 |
| Precip in | 3.7 | 3.0 | 4.7 | 4.1 | 3.8 | 4.7 | 5.2 | 4.4 | 5.1 | 4.1 | 3.3 | 4.4 |
NOAA 1991–2020 climate normals from the nearest station: WILMINGTON PORTER RSCH (1.9 mi) · NOAA NCEI
Places in ZIP 19803
- 7 schools
- 2 colleges & universities
- 2 hospitals & clinics
- 2 doctors & dentists
- 2 pharmacies
- 5 supermarkets
- 53 restaurants & cafés
- 2 bars & pubs
- 14 parks
- 13 playgrounds
- 10 gyms & sports centres
- 1 libraries
- 2 post offices
- 14 places of worship
- 10 banks
- 9 gas stations
- 2 police & fire stations
Places mapped inside this ZIP’s ZCTA area in OpenStreetMap. OSM is community-maintained: counts reflect what has been mapped, and completeness varies by area — treat them as at-least figures. © OpenStreetMap contributors (ODbL) · Methodology
About this page
US ZIP codes have five digits. They are postal routing areas, not administrative boundaries: a ZIP can span more than one city or county, and the city shown is the primary USPS name for that code.
GeoNames · U.S. Census Bureau (ACS) · U.S. Census Bureau · NOAA NCEI · usda-phzm. Data generated on 2026-08-21. Methodology · Report an error on this page