Get API Key →
US ZIP Code Profile

ZIP Code 19801
Wilmington, Delaware

ZIP code 19801 is in Wilmington, located in New Castle County, Delaware, within the Philadelphia-Camden-Wilmington metro area. Its 2020 Census population was 16,219. The estimated median adjusted gross income per tax return is $33,920, and about 3% of filers report $200,000 or more.

2020 Population
16,219
Census ZCTA
County
New Castle
FIPS 10003
Median income (est.)
$33,920
IRS SOI 2022
Land Area
4.133 mi²
+ 1.042 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
Coordinates39.727715, -75.54115
Land / Water Area4.133 mi² land · 1.042 mi² water

02Income & Economics

Distribution of the 6,970 individual tax returns filed in 19801 by adjusted gross income bracket (IRS SOI, 2022).

< $25K
39.5%
$25K–$50K
29.6%
$50K–$75K
13.2%
$75K–$100K
6.9%
$100K–$200K
7.5%
$200K+
3.4%
The $200,000+ bracket accounts for 41% of 19801's total adjusted gross income, from 3% of returns — a concentration that drives the gap between the median ($33,920) 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 19801's IRS income metrics, 2020–2022.

Median income (2021→2022)
$33,920
▲ 12.1%
Filers earning $200K+
3.4%
▲ 0.2 pt
Total filers
6,970
▲ 1.9%
GET /zipc/v2/zipcodes/19801/soi?year=… $28K 2020 $30K 2021 $34K 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 19801 ZCTA.

2000
15,484
 
2010
16,286
▲ +5.2%
2020
16,219
▼ -0.4%

05Nearby ZIP Codes — Live Radius Search

Drag the slider to filter ZIP codes by distance from 19801. Powered by the same radius endpoint developers call from the API.

GET /zipc/v2/radius

ZIP codes within range of 19801

Wilmington and its immediate neighbors, sorted by distance.

3 mi
GET /zipc/v2/distance

Distance from 19801 to any ZIP

Enter a 5-digit ZIP to calculate the distance.

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

07Frequently Asked Questions

What county is ZIP code 19801 in?

ZIP code 19801 is in New Castle County, Delaware (county FIPS code 10003).

What city is ZIP code 19801?

The primary USPS city for 19801 is Wilmington, DE.

What metro area (MSA) is 19801 in?

19801 is part of the Philadelphia-Camden-Wilmington, PA-NJ-DE-MD Metro Area (MSA code 37980).

What is the population of ZIP code 19801?

The 2020 Census population of 19801 was 16,219 residents.

What is the median income in ZIP code 19801?

Based on IRS Statistics of Income data, the estimated median adjusted gross income per tax return in 19801 is about $33,920, with around 3% of filers reporting $200,000 or more. Note that adjusted gross income is a tax measure and differs from U.S. Census household income.