Every ZIP code in the United States, with weather, radar, trivia and the numbers behind it. Five digits since 1963!

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/19903

19903

ZIP 19903 is in Dover, Delaware, in Kent County; area code 302; Eastern time. Dover has 5 ZIP codes; the others are 19901, 19904, 19905 and 19906.

Type
No street area
Time zone
America/New_York
County
Kent
Metro area
Dover, DE
Coordinates
39.1087, -75.4480

The Census map gives this ZIP code no delivery area of its own, which usually means it serves post office boxes, a single organization or a post office rather than streets of homes.

This ZIP code has no Census tabulation area of its own. Its point falls inside ZCTA 19901, whose figures describe that area — not this ZIP code.

☼ Live from 19903 — Dover, DE

Weather right now

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NEXRAD radar
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Local time: —

Where 19903 is

This ZIP code has no Census tabulation area, so there is no boundary to draw — the marker is its published point location.

★ Weird and wonderful facts about 19903
  • 🔢 Type 19903 into a pocket calculator and turn it upside down: EOGGI — not quite a word, sorry.
  • ➕ As a number, 19,903 = 13 × 1531. Its digits add up to 22, a total 2,607 other ZIP codes share.
  • 💾In binary, the way a computer stores it: 100110110111111
  • 🏠 Its numerical neighbours: 19902 (Dover Afb, DE, 2 mi away) and 19904 (Dover, DE, 9 mi away).
  • 🔄 Backwards, 19903 becomes 30991, which is not a ZIP code at all.
  • 👥 23 other ZIP codes are made of exactly the same digits (09139, 10993, 19039, 19093, 19390, 19930, …). The farthest-flung twin is 09139 in APO AE, a military post office, 4,080 miles away.
  • 🧭 Farther south than 50% of all ZIP codes, and farther east than 86%.
  • 🎯1,231 miles east of the geographic center of the Lower 48, near Lebanon, Kansas.
  • 🌏 Dig straight through the Earth from 19903 and you would come out at 39.11°S, 104.55°E — 804 miles from Perth, Australia, the nearest big city to that spot.
  • ☀Longest day of the year: 14h 55m of daylight. Shortest: 9h 25m.
🌙 The sky over 19903 today
  • Working out the sun…
🌋 Shake report
  • Checking the USGS…

Source: USGS.

Business and tax activity

Business establishments15This ZIP15
Employees106This ZIP106
Annual payroll$6,120,000This ZIP$6,120,000

Land area

ZIP codes near 19903

ZIPCityDistance
19902 Dover Afb, DE 1.7 mi
19962 Magnolia, DE 3.5 mi
19961 Little Creek, DE 4.0 mi
19946 Frederica, DE 5.1 mi
19901 Dover, DE 5.2 mi
19905 Dover, DE 5.3 mi
19906 Dover, DE 5.5 mi
19980 Woodside, DE 7.0 mi
19979 Viola, DE 8.0 mi
19904 Dover, DE 8.6 mi

Find every ZIP code within 10 miles of 19903 →

Questions about this ZIP code

Where is ZIP code 19903?

19903 is in Dover, Delaware, in Kent County, part of the Dover, DE metropolitan area. Its published point location is 39.1087, -75.4480.

What county is 19903 in?

19903 lies in Kent County.

What area code is 19903?

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

What time zone is 19903 in?

19903 uses America/New_York.

What ZIP codes are near 19903?

The closest are 19902 (1.7 mi), 19962 (3.5 mi), 19961 (4 mi), 19946 (5.1 mi) and 19901 (5.2 mi).

Is 19903 a PO Box ZIP code?

Possibly. The Census map gives this ZIP code no delivery area of its own, which usually means it serves post office boxes, a single organization or a post office rather than streets of homes.

Download or cite

Cite this page

zipcodes.pro. “19903 ZIP Code — Dover, Delaware (Kent County).” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/zip/19903

Machine-readable version of these facts:

curl https://zipcodes.pro/zip/19903.json

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