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ZIP stands for Zone Improvement Plan. The codes went live on July 1, 1963.The lowest ZIP code is 00501 — the IRS in Holtsville, New York.The highest ZIP code is 99950, in Ketchikan, Alaska.Type 07734 into a calculator and turn it upside down: hELLO. It is Keansburg, New Jersey.12345 belongs to one company: General Electric in Schenectady, New York.The first digit is a region: 0 is New England and New Jersey, 9 is the West Coast, Alaska and Hawaii.Mr. ZIP, the cartoon mailman, was the mascot that sold the idea to America.ZIP+4 arrived in 1983 and can narrow a ZIP down to one side of one block.A ZIP code is a mail route, not a place: plenty of them cross county and even state lines.Play ZIP Hunt: guess the secret ZIP code of the day in six tries.
zipcodes.pro — ZIP/19801

19801

ZIP 19801 is in Wilmington, Delaware, in New Castle County; area code 302; Eastern time. Wilmington has 25 ZIP codes in all.

Type
Standard
Time zone
America/New_York
County
New Castle
Population
16,327
Coordinates
39.7236, -75.5412
☼ Live from 19801 — Wilmington, DE

Weather right now

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Local time: —

Where 19801 is

Approximate ZIP boundary (Census ZCTA 2020). ZIP codes are mail routes, not areas, so the shape shown is the Census tabulation area that approximates it.

★ Weird and wonderful facts about 19801
  • 🔢 Type 19801 into a pocket calculator and turn it upside down: IOBGI — not quite a word, sorry.
  • ➕ 19801 is a prime number. It cannot be divided by anything except 1 and itself. Its digits add up to 19, a total 2,454 other ZIP codes share.
  • 💾In binary, the way a computer stores it: 100110101011001
  • 🏠 Its numerical neighbours: 19736 (Yorklyn, DE, 7 mi away) and 19802 (Wilmington, DE, 2 mi away).
  • 🔄 Backwards, 19801 becomes 10891, which is not a ZIP code at all.
  • 👥 23 other ZIP codes are made of exactly the same digits (09811, 10918, 10981, 11980, 18091, 18109, …). The farthest-flung twin is 09811 in APO AE, a military post office, 6,475 miles away.
  • 🧭 Farther north than 54% of all ZIP codes, and farther east than 86%.
  • 🎯1,220 miles east of the geographic center of the Lower 48, near Lebanon, Kansas.
  • 🌏 Dig straight through the Earth from 19801 and you would come out at 39.72°S, 104.46°E — 833 miles from Perth, Australia, the nearest big city to that spot.
  • ☀Longest day of the year: 14h 59m of daylight. Shortest: 9h 21m.
  • 📏 At 4.4 square miles of land, 19801 is bigger than 18% of ZIP codes — room for about 3.3 Central Parks.
🌙 The sky over 19801 today
  • Working out the sun…
🌋 Shake report
  • Checking the USGS…

Source: USGS.

People and housing

Population16,327This ZIP16,327
Households8,150This ZIP8,150
Housing units9,406This ZIP9,406
Median age35.3This ZIP35.3Delaware41.6US 38.9
Median household income$52,810This ZIP$52,810Delaware$84,954US $80,734
Median home value$199,900This ZIP$199,900Delaware$352,000US $332,700
Median gross rent$1,192This ZIP$1,192Delaware$1,401US $1,413
Bachelor's degree or higher29.3%This ZIP29.3%
Mean commute24.2 minThis ZIP24.2 min
Population density3,713.2 / sq miThis ZIP3,713.2 / sq mi

Business and tax activity

Business establishments2,585This ZIP2,585
Employees44,234This ZIP44,234
Annual payroll$5,121,612,000This ZIP$5,121,612,000
Tax returns filed6,970This ZIP6,970
Total adjusted gross income$468,835,000This ZIP$468,835,000

Land area

Land area4.40 sq miThis ZIP4.40 sq mi
Water area1.11 sq miThis ZIP1.11 sq mi

Other place names in 19801

Census places whose land this ZIP code overlaps. The Postal Service may accept other city names in an address, too.

ZIP codes near 19801

ZIPCityDistance
19884 Wilmington, DE 1.6 mi
19885 Wilmington, DE 1.6 mi
19886 Wilmington, DE 1.6 mi
19893 Wilmington, DE 1.6 mi
19894 Wilmington, DE 1.6 mi
19895 Wilmington, DE 1.6 mi
19898 Wilmington, DE 1.6 mi
19899 Wilmington, DE 1.6 mi
19802 Wilmington, DE 2.3 mi
19806 Wilmington, DE 2.9 mi

Find every ZIP code within 10 miles of 19801 →

Questions about this ZIP code

Where is ZIP code 19801?

19801 is in Wilmington, Delaware, in New Castle County, part of the Philadelphia-Camden-Wilmington, PA-NJ-DE-MD metropolitan area. Its published point location is 39.7236, -75.5412.

What county is 19801 in?

19801 lies in New Castle County.

What area code is 19801?

Wilmington uses area code 302, from NANPA's telephone records.

What time zone is 19801 in?

19801 uses America/New_York.

How many people live in 19801?

About 16,327 people live in ZIP code 19801, in 8,150 households, at 3,713.2 people per square mile. These are American Community Survey 5-year estimates for the ZIP Code Tabulation Area, not a headcount.

What is the median household income in 19801?

$52,810 a year, against $84,954 across Delaware.

What ZIP codes are near 19801?

The closest are 19884 (1.6 mi), 19885 (1.6 mi), 19886 (1.6 mi), 19893 (1.6 mi) and 19894 (1.6 mi).

Is 19801 a PO Box ZIP code?

19801 is a standard ZIP code. A normal ZIP code with street delivery.

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Cite this page

zipcodes.pro. “19801 ZIP Code — Wilmington, Delaware (New Castle County).” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/zip/19801

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