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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/19940

19940

ZIP 19940 is Delmar, Delaware, in Sussex County; area code 302; Eastern time.

Type
Standard
Time zone
America/New_York
County
Sussex
Metro area
Seaford, DE
Population
7,540
Coordinates
38.4776, -75.5649
☼ Live from 19940 — Delmar, DE

Weather right now

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NEXRAD radar
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Local time: —

Where 19940 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 19940
  • 🔢 Type 19940 into a pocket calculator and turn it upside down: OhGGI — not quite a word, sorry.
  • ➕ As a number, 19,940 = 2 × 2 × 5 × 997. Its digits add up to 23, a total 2,533 other ZIP codes share.
  • 💾In binary, the way a computer stores it: 100110111100100
  • 🏠 Its numerical neighbours: 19939 (Dagsboro, DE, 20 mi away) and 19941 (Ellendale, DE, 23 mi away).
  • 🔄 Backwards, 19940 becomes 04991, which is not a ZIP code at all.
  • 👥 22 other ZIP codes are made of exactly the same digits (01949, 09419, 10949, 10994, 19049, 19094, …). The farthest-flung twin is 09419 in FPO AE, a military post office, 3,435 miles away.
  • 🧭 Farther south than 55% of all ZIP codes, and farther east than 86%.
  • 🎯1,233 miles east of the geographic center of the Lower 48, near Lebanon, Kansas.
  • 🌏 Dig straight through the Earth from 19940 and you would come out at 38.48°S, 104.44°E — 786 miles from Perth, Australia, the nearest big city to that spot.
  • ☀Longest day of the year: 14h 51m of daylight. Shortest: 9h 29m.
  • 📏 At 41.3 square miles of land, 19940 is bigger than 54% of ZIP codes — room for about 31 Central Parks.
🌙 The sky over 19940 today
  • Working out the sun…
🌋 Shake report
  • Checking the USGS…

Source: USGS.

People and housing

Population7,540This ZIP7,540
Households2,469This ZIP2,469
Housing units2,743This ZIP2,743
Median age41.8This ZIP41.8Delaware41.6US 38.9
Median household income$65,024This ZIP$65,024Delaware$84,954US $80,734
Median home value$235,300This ZIP$235,300Delaware$352,000US $332,700
Median gross rent$1,037This ZIP$1,037Delaware$1,401US $1,413
Bachelor's degree or higher19.9%This ZIP19.9%
Mean commute28.1 minThis ZIP28.1 min
Population density182.5 / sq miThis ZIP182.5 / sq mi

Business and tax activity

Business establishments157This ZIP157
Employees1,741This ZIP1,741
Annual payroll$98,875,000This ZIP$98,875,000
Tax returns filed3,130This ZIP3,130
Total adjusted gross income$202,745,000This ZIP$202,745,000

Land area

Land area41.31 sq miThis ZIP41.31 sq mi
Water area0.00 sq mi

Other place names in 19940

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

ZIP codes near 19940

ZIPCityDistance
21875 Delmar, MD 2.8 mi
19956 Laurel, DE 5.1 mi
19931 Bethel, DE 6.8 mi
21802 Salisbury, MD 7.0 mi
21803 Salisbury, MD 7.0 mi
21861 Sharptown, MD 9.7 mi
21849 Parsonsburg, MD 9.8 mi
21830 Hebron, MD 10.7 mi
21801 Salisbury, MD 10.8 mi
21837 Mardela Springs, MD 11.0 mi

Find every ZIP code within 10 miles of 19940 →

Questions about this ZIP code

Where is ZIP code 19940?

19940 is in Delmar, Delaware, in Sussex County, part of the Seaford, DE micropolitan area. Its published point location is 38.4776, -75.5649.

What county is 19940 in?

19940 lies in Sussex County.

What area code is 19940?

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

What time zone is 19940 in?

19940 uses America/New_York.

How many people live in 19940?

About 7,540 people live in ZIP code 19940, in 2,469 households, at 182.5 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 19940?

$65,024 a year, against $84,954 across Delaware.

What ZIP codes are near 19940?

The closest are 21875 (2.8 mi), 19956 (5.1 mi), 19931 (6.8 mi), 21802 (7 mi) and 21803 (7 mi).

Is 19940 a PO Box ZIP code?

19940 is a standard ZIP code. A normal ZIP code with street delivery.

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Cite this page

zipcodes.pro. “19940 ZIP Code — Delmar, Delaware (Sussex County).” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/zip/19940

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