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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/04865

04865

ZIP 04865 is West Rockport, Maine, in Knox County; area code 207; Eastern time.

Type
No street area
Time zone
America/New_York
County
Knox
Metro area
none
Coordinates
44.1924, -69.1211

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 04856, whose figures describe that area — not this ZIP code.

☼ Live from 04865 — West Rockport, ME

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Where 04865 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 04865
  • 🔢 Type 04865 into a pocket calculator and turn it upside down: SgBhO — not quite a word, sorry.
  • ➕ As a number, 4,865 = 5 × 7 × 139. Its digits add up to 23, a total 2,533 other ZIP codes share.
  • 💾In binary, the way a computer stores it: 1001100000001
  • 🏠 Its numerical neighbours: 04864 (Warren, ME, 8 mi away) and 04901 (Waterville, ME, 33 mi away).
  • 🔄 Backwards, 04865 becomes 56840, which is not a ZIP code at all.
  • 👥 66 other ZIP codes are made of exactly the same digits (04568, 04658, 04685, 04856, 05468, 05486, …). The farthest-flung twin is 86405 in Lake Havasu City, AZ, 2,473 miles away.
  • 🧭 Farther north than 88% of all ZIP codes, and farther east than 97%.
  • 🎯1,533 miles east of the geographic center of the Lower 48, near Lebanon, Kansas.
  • 🌏 Dig straight through the Earth from 04865 and you would come out at 44.19°S, 110.88°E — 888 miles from Perth, Australia, the nearest big city to that spot.
  • ☀Longest day of the year: 15h 31m of daylight. Shortest: 8h 52m.
🌙 The sky over 04865 today
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Source: USGS.

Business and tax activity

Business establishments11This ZIP11
Employees230This ZIP230
Annual payroll$13,120,000This ZIP$13,120,000

Land area

ZIP codes near 04865

ZIPCityDistance
04856 Rockport, ME 0.8 mi
04841 Rockland, ME 4.1 mi
04843 Camden, ME 4.3 mi
04847 Hope, ME 4.7 mi
04861 Thomaston, ME 6.4 mi
04850 Lincolnville Center, ME 7.3 mi
04864 Warren, ME 7.5 mi
04862 Union, ME 9.2 mi
04849 Lincolnville, ME 9.8 mi
04854 Owls Head, ME 10.2 mi

Find every ZIP code within 10 miles of 04865 →

Questions about this ZIP code

Where is ZIP code 04865?

04865 is in West Rockport, Maine, in Knox County. Its published point location is 44.1924, -69.1211.

What county is 04865 in?

04865 lies in Knox County.

What area code is 04865?

West Rockport uses area code 207, from NANPA's telephone records.

What time zone is 04865 in?

04865 uses America/New_York.

What ZIP codes are near 04865?

The closest are 04856 (0.8 mi), 04841 (4.1 mi), 04843 (4.3 mi), 04847 (4.7 mi) and 04861 (6.4 mi).

Is 04865 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. “04865 ZIP Code — West Rockport, Maine (Knox County).” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/zip/04865

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curl https://zipcodes.pro/zip/04865.json

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