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US ZIP Code Profile

ZIP Code 19803
Wilmington, Delaware

ZIP code 19803 is in Wilmington, located in New Castle County, Delaware, within the Philadelphia-Camden-Wilmington metro area. Its 2020 Census population was 21,886. The estimated median adjusted gross income per tax return is $93,640, and about 20% of filers report $200,000 or more.

2020 Population
21,886
Census ZCTA
County
New Castle
FIPS 10003
Median income (est.)
$93,640
IRS SOI 2022
Land Area
12.6 mi²
+ 0.01 mi² water

01Location & Geography

Authoritative geographic identifiers from the U.S. Census Bureau, ANSI, and FIPS standards.

Primary CityWilmington, DE
CountyNew Castle County (FIPS 10003)
StateDelaware (FIPS 10)
Metro Area (MSA)Philadelphia-Camden-Wilmington, PA-NJ-DE-MD Metro Area (37980)
Census Region / DivisionSouth Region · South Atlantic Division
Coordinates39.800667, -75.54241
Land / Water Area12.6 mi² land · 0.01 mi² water

02Income & Economics

Distribution of the 11,140 individual tax returns filed in 19803 by adjusted gross income bracket (IRS SOI, 2022).

< $25K
18.1%
$25K–$50K
12.8%
$50K–$75K
11.4%
$75K–$100K
10.2%
$100K–$200K
27.2%
$200K+
20.2%
The $200,000+ bracket accounts for 58% of 19803's total adjusted gross income, from 20% of returns — a concentration that drives the gap between the median ($93,640) and the average.
Estimated median = median adjusted gross income per tax return, interpolated from IRS SOI brackets. Differs from U.S. Census household income.

03Income Over Time

Year-over-year change in 19803's IRS income metrics, 2020–2022.

Median income (2021→2022)
$93,640
▲ 2.4%
Filers earning $200K+
20.2%
▲ 0.6 pt
Total filers
11,140
▲ 1.3%
GET /zipc/v2/zipcodes/19803/soi?year=… $81K 2020 $91K 2021 $94K 2022
Median = adjusted gross income per return, interpolated from IRS SOI brackets. Figures are nominal (not inflation-adjusted).

04Population Trend

Decennial U.S. Census population for the 19803 ZCTA.

2000
21,055
 
2010
21,364
▲ +1.5%
2020
21,886
▲ +2.4%

05Nearby ZIP Codes — Live Radius Search

Drag the slider to filter ZIP codes by distance from 19803. Powered by the same radius endpoint developers call from the API.

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ZIP codes within range of 19803

Wilmington and its immediate neighbors, sorted by distance.

3 mi
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Distance from 19803 to any ZIP

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06USPS Postal Details

Delivery and facility attributes from the monthly USPS dataset.

ZIP ClassificationNon-Unique Zip
Facility TypePost Office
Carrier Route SortD
USPS Finance Number096820
City AliasesWilmington, Talleyville

07Frequently Asked Questions

What county is ZIP code 19803 in?

ZIP code 19803 is in New Castle County, Delaware (county FIPS code 10003).

What city is ZIP code 19803?

The primary USPS city for 19803 is Wilmington, DE.

What metro area (MSA) is 19803 in?

19803 is part of the Philadelphia-Camden-Wilmington, PA-NJ-DE-MD Metro Area (MSA code 37980).

What is the population of ZIP code 19803?

The 2020 Census population of 19803 was 21,886 residents.

What is the median income in ZIP code 19803?

Based on IRS Statistics of Income data, the estimated median adjusted gross income per tax return in 19803 is about $93,640, with around 20% of filers reporting $200,000 or more. Note that adjusted gross income is a tax measure and differs from U.S. Census household income.