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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/21759

21759

ZIP 21759 is Ladiesburg, Maryland, in Frederick County; Eastern time.

Type
No street area
Time zone
America/New_York
County
Frederick
Coordinates
39.5694, -77.2905

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 21757, whose figures describe that area — not this ZIP code.

☼ Live from 21759 — Ladiesburg, MD

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Where 21759 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 21759
  • 🔢 Type 21759 into a pocket calculator and turn it upside down: GSLIZ — not quite a word, sorry.
  • ➕ As a number, 21,759 = 3 × 7253. Its digits add up to 24, a total 2,425 other ZIP codes share.
  • 💾In binary, the way a computer stores it: 101010011111111
  • 🏠 Its numerical neighbours: 21758 (Knoxville, MD, 25 mi away) and 21762 (Libertytown, MD, 7 mi away).
  • 🔄 Backwards, 21759 becomes 95712 — and that is a real ZIP code: Chicago Park, CA, 2,310 miles away.
  • 👥 43 other ZIP codes are made of exactly the same digits (12759, 12957, 12975, 15279, 15729, 15927, …). The farthest-flung twin is 95172 in San Jose, CA, 2,393 miles away.
  • 🧭 Farther north than 53% of all ZIP codes, and farther east than 80%.
  • 🎯1,129 miles east of the geographic center of the Lower 48, near Lebanon, Kansas.
  • 🌏 Dig straight through the Earth from 21759 and you would come out at 39.57°S, 102.71°E — 904 miles from Perth, Australia, the nearest big city to that spot.
  • ☀Longest day of the year: 14h 58m of daylight. Shortest: 9h 22m.
🌙 The sky over 21759 today
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Source: USGS.

Land area

ZIP codes near 21759

ZIPCityDistance
21775 New Midway, MD 0.4 mi
21798 Woodsboro, MD 2.2 mi
21757 Keymar, MD 2.4 mi
21778 Rocky Ridge, MD 3.8 mi
21791 Union Bridge, MD 6.0 mi
21793 Walkersville, MD 6.2 mi
21762 Libertytown, MD 6.5 mi
21788 Thurmont, MD 6.7 mi
21727 Emmitsburg, MD 8.5 mi
21792 Unionville, MD 8.6 mi

Find every ZIP code within 10 miles of 21759 →

Questions about this ZIP code

Where is ZIP code 21759?

21759 is in Ladiesburg, Maryland, in Frederick County, part of the Washington-Arlington-Alexandria, DC-VA-MD-WV metropolitan area. Its published point location is 39.5694, -77.2905.

What county is 21759 in?

21759 lies in Frederick County.

What time zone is 21759 in?

21759 uses America/New_York.

What ZIP codes are near 21759?

The closest are 21775 (0.4 mi), 21798 (2.2 mi), 21757 (2.4 mi), 21778 (3.8 mi) and 21791 (6 mi).

Is 21759 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.

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Cite this page

zipcodes.pro. “21759 ZIP Code — Ladiesburg, Maryland (Frederick County).” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/zip/21759

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