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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/20627

20627

ZIP 20627 is Compton, Maryland, in St. Mary's County; area codes 240, 301 and 227; Eastern time.

Type
No street area
Time zone
America/New_York
County
St. Mary's
Metro area
Lexington Park, MD
Coordinates
38.2768, -76.7040

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 20650, whose figures describe that area — not this ZIP code.

☼ Live from 20627 — Compton, MD

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Where 20627 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 20627
  • 🔢 Type 20627 into a pocket calculator and turn it upside down: LZgOZ — not quite a word, sorry.
  • ➕ 20627 is a prime number. It cannot be divided by anything except 1 and itself. Its digits add up to 17, a total 2,133 other ZIP codes share.
  • 💾In binary, the way a computer stores it: 101000010010011
  • 🏠 Its numerical neighbours: 20626 (Coltons Point, MD, 4 mi away) and 20628 (Dameron, MD, 22 mi away).
  • 🔄 Backwards, 20627 becomes 72602 — and that is a real ZIP code: Harrison, AR, 912 miles away.
  • 👥 24 other ZIP codes are made of exactly the same digits (02672, 02726, 02762, 06722, 20726, 20762, …). The farthest-flung twin is 76022 in Bedford, TX, 1,206 miles away.
  • 🧭 Farther south than 56% of all ZIP codes, and farther east than 83%.
  • 🎯1,176 miles east of the geographic center of the Lower 48, near Lebanon, Kansas.
  • 🌏 Dig straight through the Earth from 20627 and you would come out at 38.28°S, 103.30°E — 833 miles from Perth, Australia, the nearest big city to that spot.
  • ☀Longest day of the year: 14h 50m of daylight. Shortest: 9h 30m.
🌙 The sky over 20627 today
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Source: USGS.

Land area

ZIP codes near 20627

ZIPCityDistance
20609 Avenue, MD 2.4 mi
20606 Abell, MD 2.5 mi
20650 Leonardtown, MD 4.1 mi
20626 Coltons Point, MD 4.3 mi
20656 Loveville, MD 4.4 mi
20624 Clements, MD 4.5 mi
20618 Bushwood, MD 5.2 mi
20635 Helen, MD 5.8 mi
20621 Chaptico, MD 6.3 mi
20660 Morganza, MD 6.4 mi

Find every ZIP code within 10 miles of 20627 →

Questions about this ZIP code

Where is ZIP code 20627?

20627 is in Compton, Maryland, in St. Mary's County, part of the Lexington Park, MD metropolitan area. Its published point location is 38.2768, -76.7040.

What county is 20627 in?

20627 lies in St. Mary's County.

What area code is 20627?

Compton uses area codes 240, 301 and 227, from NANPA's telephone records.

What time zone is 20627 in?

20627 uses America/New_York.

What ZIP codes are near 20627?

The closest are 20609 (2.4 mi), 20606 (2.5 mi), 20650 (4.1 mi), 20626 (4.3 mi) and 20656 (4.4 mi).

Is 20627 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. “20627 ZIP Code — Compton, Maryland (St. Mary's County).” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/zip/20627

Machine-readable version of these facts:

curl https://zipcodes.pro/zip/20627.json

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